DSP MINI - Audio/video converter Audiotec Fischer - Free user manual and instructions
Find the device manual for free DSP MINI Audiotec Fischer in PDF.
| Product Type | Digital Signal Processor (DSP) for Car Audio |
| Dimensions (W x H x D) | 190 x 45 x 140 mm (Approx. 1 DIN) |
| Weight | 0.5 kg |
| Power Supply | 12 V DC (10.5-14.4 V) |
| Main Functions | Digital signal processing, time alignment, parametric EQ, crossover filters, output channel mixing |
| Inputs | Up to 4 high-level or 2 low-level analog inputs, optical S/PDIF |
| Outputs | Up to 8 balanced analog outputs (RCA or speaker level) |
| Sampling Rate | 48 kHz / 96 kHz |
| Bit Depth | 24-bit |
| Remote Control | Via optional USB interface or dedicated remote |
| Care and Cleaning | Wipe with a soft, dry cloth. Avoid liquids and abrasives. |
| Safety | Disconnect power before installation or cleaning. Use only specified fuse rating. |
| Spare Parts and Repairability | No user-serviceable parts. Contact authorized dealer for repairs. |
| General Information | Professional-grade DSP for optimizing car audio systems. Compatible with most OEM and aftermarket head units. |
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USER MANUAL DSP MINI Audiotec Fischer
Digital High-Res 6-channel signal processor with
96 kHz / 24 Bit signal path
Kanal A = Vorne links
Kanal C = Hinten links
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Close-up of an electronic circuit board with capacitors and connectors (no visible text or symbols)natural_image
Close-up of a circuit board with multiple LED connectors and a green checkmark overlay (no readable text or symbols)
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Close-up of a computer motherboard with visible electronic components and a red X mark (no readable text or symbols)ACO - Advanced 32 Bit CoProcessor
Abtastrate .....96 kHz
Congratulations on your purchase of this innovative and high-qual ity HELIX product.
Thanks to more than 30 years of experience in research and development of audio products the HELIX DSP MINI sets new standards in the range of digital signal processors.
We wish you many hours of enjoyment with your new HELIX DSP MINI.
Yours,
AUDIOTEC FISCHER
General instructions
General installation instructions for HELIX components
To prevent damage to the unit and possible injury, read this manual carefully and follow all installation instructions. This product has been checked for proper function prior to shipping and is guaranteed against manufacturing defects.
Before starting your installation, disconnect the battery's negative terminal to prevent damage to the unit, fire and / or risk of injury. For a proper performance and to ensure full warranty coverage, we strongly recommend to get this product installed by an authorized HELIX dealer.
Install your HELIX DSP MINI in a dry location with sufficient air circulation for proper cooling of the equipment. The signal processor should be secured to a solid mounting surface using proper mounting hardware. Before mounting, carefully examine the area around and behind the proposed installation location to insure that there are no electrical cables or components, hydraulic brake lines or any part of the fuel tank located behind the mounting surface. Failure to do so may result in unpredictable damage to these components and possible costly repairs to the vehicle.
General instruction for connecting the HELIX DSP MINI signal processor
The HELIX DSP MINI signal processor may only be installed in vehicles which have a 12 Volts negative terminal connected to the chassis ground. Any other system could cause damage to the signal processor and the electrical system of the vehicle. The positive cable from the battery for the entire sound system should be provided with a main fuse at a distance of max. 30 cm from the battery. The value of the fuse is calculated from the maximum total current draw of the car audio system.
Use only the provided connectors for connection of the HELIX DSP MINI. The use of other connectors or cables can result in damage of the signal processor, the head unit / radio or the connected amplifiers / loudspeakers!
Prior to installation, plan the wire routing to avoid any possible damage to the wire harness. All cabling should be protected against possible crushing or pinching hazards. Also avoid routing cables close to potential noise sources such as electric motors, high power accessories and other vehicle harnesses.
Connectors and control units
① Line Input
RCA inputs for connecting pre-amplifier signals.
② Clipping LED
This LED lights up red if one of the analog inputs is overdriven.
③ Highlevel Input
Highlevel speaker inputs for connecting a factory radio or an aftermarket radio without lowlevel line outputs.
④ Input Sensitivity
Control for adjusting the input sensitivity of the lowlevel Line and Highlevel Inputs.
⑤ Optical Input
Optical input for digital stereo signals (SPDIF format).
⑥ Auto Remote
This switch allows to activate / deactivate the automatic turn-on feature of the signal processor.
⑦ Power Input
Connector for the DC power supply with an additional remote in- and output. The remote output has to be used to switch on external amplifiers.
⑧ Ground lift switch
Can be used to define the connection between the grounding of the inputs and outputs.
⑨ Control pushbutton
Use this button to either switch between the setups or initiate a reset of the device.
10 Status LED
This LED indicates the operating mode of the DSP and which setup has been chosen.
11 USB input
Connects the HELIX DSP MINI to your PC.
12 Control Input
Multifunction interface for e.g. an optional remote control or other HELIX accessory.
13 Line Output
Line outputs for connecting amplifiers. Make sure that the remote output is used to turn on these devices.
① Line Input
4-channel lowlevel line input to connect signal sources such as head units / radios. Input sensitivity is factory-set to 4 Volts (maximum CCW position). It is possible to vary the sensitivity between 2 and 4 Volts.
② Clipping LED
This LED lights up red if one of the four lowlevel Line Inputs or Highlevel Inputs is overdriven. The LED has no function if the device is fed with digital input signals. If this LED lights up reduce the input sensitivity by using the control 4 (Input Sensitivity) until the LED goes out.
③ Highlevel Input
4-channel highlevel loudspeaker input to connect the signal processor directly to loudspeaker outputs of OEM / aftermarket radios or OEM amplifiers that do not have any pre-amplifier outputs. Input sensitivity is factory-set to 11 Volts (maximum CCW position). It is possible to vary the sensitivity between 5 and 11 Volts with control 4 (Input Sensitivity).
Attention: Solely use the pluggable screw-terminal for the highlevel connector which is included in delivery!
Important: It is strictly forbidden to use the High-level and lowlevel Line Input of an individual channel at the same time as this may cause severe damage to the lowlevel line outputs of your car radio. Nevertheless it is possible to use the Highlevel Input of one channel and the lowlevel Line Input of another channel simultaneously.
④ Input Sensitivity
This control is used to adapt the input sensitivity of the low- and highlevel inputs to the output voltage of the connected signal source. This is not a volume control, it's only for adjusting the signal processors gain. Adjustments with this control do not affect the optical input! The control range of the lowlevel RCA / Line Input is 2 - 4 Volts and 5 - 11 Volts for the Highlevel Input.
Attention: It is mandatory to properly adapt the input sensitivity of the DSP MINI to the signal source in order to avoid damage to the signal processor.
Note: The input sensitivity ex works is set to max. CCW position. This is definitely the best setting for most applications.
⑤ Optical Input
Optical input in SPDIF format for connecting signal sources with a digital audio output. The sampling rate of this input must be between 12 and 96 kHz. The input signal is automatically adapted to the internal sample rate. In order to control the volume of this input, we recommend to use an optional remote control.
Note: This signal processor can only handle stereo input signals and no MP3- or Dolby-coded digital audio stream!
Note: It is possible to use the Optical Input and the Highlevel Input or lowlevel Line Input at the same time.
⑥ Auto Remote
The DSP MINI will be turned on automatically if the Highlevel Input is used or if a signal is applied to the remote input (Remote in) terminal.
The Auto Remote switch allows to activate / deactivate the automatic turn-on feature of the highlevel inputs. The feature should be deactivated (Auto Remote = Off) if there are e.g. disturbing noises while switching on / off the signal processor.
Note: The automatic turn-on feature of the highlevel inputs is activated ex works (Auto Remote = On).
Note: If the automatic turn-on function is deactivated it is mandatory to use the remote input to power up the signal processor! The highlevel signal will be ignored in this case.
⑦ Power Input
This input is used for connecting the signal processor to the power supply of the vehicle and for remote in / out. If the highlevel loudspeaker inputs are used the remote input can be left unconnected. The remote output is used for turning on / off amplifiers that are connected to the Line Outputs of the HELIX DSP MINI. Connect this remote output to the remote inputs of your amplifier/s. This is essential to avoid any interfering signals.
The remote output is activated automatically as soon as the booting process of the DSP is completed. Additionally this output will be turned off during the “Power Save Mode” or a software update process.
Attention: Solely use the pluggable screw-terminal which is included in delivery!
Important: Never use a different signal than the
remote output of the DSP to activate connected amplifiers!
⑧ Ground lift switch
The ground of the HELIX DSP MINI signal inputs is galvanically decoupled from the ground of the signal outputs. In many cars this setup is the best way to avoid alternator noise. Nevertheless, there are use cases where it will be necessary to directly connect input and output ground or to tie both grounds together via a resistor. Therefore the Ground lift switch has three positions:
- center position: input and output groundSound Setup memory is empty. A new setup has to be loaded via the DSP PC-Tool software or switch separated.
- left position: input and output ground tied to a memory position with existing sound setup. together.
- right position: input and output ground ^11 USB input connected via 200 Ohms resistor. Connect your personal computer to the DSP MINI
⑨ Control pushbutton
The DSP MINI provides 10 internal memory locations for sound setups. The Control pushbutton allows the user to switch between two memory positions. These can be defined in the DSP PC-Tool.
Note: The memory locations one and two are defined ex works.
To manually switch between the setups the button has to be pressed and held for one second. Switching is indicated by a single red flash of the Status LED. To switch between all internal memory locations, the optionally available DIRECTOR display remote control is recommended.
Pressing the button for five seconds completely eras es the internal memory. This is indicated by a continuous red glowing and constant green flashing of the Status LED.
Attention: After erasing the setups from memory the HELIX DSP MINI will not reproduce any audio output.
10 Status LED
The Status LED indicates the operating mode of the signal processor and of its memory.
Green: DSP is ready for operation.
Orange: Power Save Mode is active.
Red: Protection Mode is active. This may have different root causes. The HELIX DSP MINI is equipped with protection circuits against over- and undervoltage as well as overheating. Please check
for connecting failures such as short-circuits or other wrong connections.
If the DSP is overheated the internal temperature protection switches off the remote and signal output until it reaches a safe temperature level again.
Red / green slow flashing: No operating software installed. Connect the signal processor to the DSP PC-Tool software and confirm the automatic update of the operating system. You will find the latest version of the DSP PC-Tool software at www.audiotec-fischer.com.
Red / green fast flashing: The currently selected dSound Setup memory is empty. A new setup has to be loaded via the DSP PC-Tool software or switch
n1 USB input
Connect your personal computer to the DSP MINI using the provided USB cable. The required PC software to configure this signal processor can be downloaded from the Audiotec Fischer website www.audiotec-fischer.com.
Please note: It is not possible to connect any USB storage devices.
12 Control Input
This multi-functional input is designed for HELIX DSP MINI accessory products like a remote control which allows to adjust several features of the signal processor. Depending on the type of remote control, at first its functionality has to be defined in the “Device Configuration Menu” of the DSP PC-Tool software.
13 Line Output
6-channel pre-amplifier output for connecting power amplifiers. The output voltage is 4 Volts max. Please make sure that you always turn on / off external amplifiers using the remote output of the signal processors Power Input. Never directly control the external amps by a signal from the ignition switch of your car! Additionally this output will be turned off when the "Power Save Mode" of the signal processor is active. The outputs can be assigned to any of the inputs as desired using the DSP PC-Tool software.
Connection of HELIX DSP MINI to the head unit / car radio:
Caution: Carrying out the following steps will require special tools and technical knowledge. In order to avoid connection mistakes and / or damage, ask your dealer for assistance if you have any questions and follow all instructions in this manual (see page 14). It is recommended that the device will be installed by an authorized HELIX dealer.
1. Connecting the pre-amplifier inputs
Use the correct cable (RCA / cinch cable) to connect these inputs to the pre-amplifier / lowlev el / cinch outputs of your head unit / car radio. Each input can be assigned to any output using the DSP PC-Tool software. The automatic turn-on circuit does not work when using the pre-amplifier inputs. In this case the remote input has to be connected to activate the HELIX DSP MINI.
Important: It is strictly forbidden to use the Highlevel and lowlevel Line Input of an individual channel at the same time as this may cause severe damage to the lowlevel line outputs of your head unit / car radio. Nevertheless it is possible to use the Highlevel Input of one channel and the lowlevel Line Input of another channel simultaneously.
2. Connecting the highlevel speaker inputs
The highlevel loudspeaker inputs can be connected directly to the loudspeaker outputs of an OEM or aftermarket radio using appropriate cables (loudspeaker cables with 1 mm^2 / AWG 18 max. ).
We recommend the following channel assignment if a common car radio will be connected to the signal processor:
Channel A = Front left
Channel B = Front right
Channel C = Rear left
Channel D = Rear right
Actually it is not mandatory to use all high level speaker inputs. If only two channels will be connected we recommend to use the channels A and B. Make sure that the polarity is correct. If one or more connections have reversed polarity it may affect the performance of the signal
processor. If this input is used the remote input does not need to be connected as the signal processor will automatically turn on once a loudspeaker signal is received.
3. Connecting a digital signal source
If you have a signal source with an optical digital output you can connect it to the signal processor using the appropriate input. In standard configuration the HELIX DSP MINI automatically activates the used digital input if a digital audio signal is detected. This function can be deactivated via the DSP PC-Tool software. Alternatively you can manually activate the digital input if you are using the optional remote control. The automatic turn-on circuit does not work when the digital input is used. Therefore it is mandatory to connect the remote input of the Power Input. Please note that it is possible to connect a source to the digital input and the Highlevel Input or the Line Input at the same time.
Important: The signal of a digital audio source normally does not contain any information about the volume level. Keep in mind that this will lead to full level on the outputs of the HELIX DSP MINI and your connected amplifiers. This may cause severe damage to your speakers. We strongly recommend to use an optional remote control for adjusting the volume level of the digital signal input!
Information: The HELIX DSP MINI can only handle uncompressed digital stereo signals in PCM format with a sample rate between 12 kHz and 96 kHz and no MP3- or Dolby-coded digital audio stream!
4. Adjustment of the input sensitivity
Attention: It is mandatory to properly adapt the input sensitivity of the DSP MINI to the signal source in order to avoid damage to the signal processor.
If you want to change the input sensitivity use the control 4 (see page 16, item 4; Input Sensitivity). The ex works setting of the input sensitivity is the maximum counter-clockwise position. This is definitely the best setting for most applications. Only if the head unit / car radio doesn't deliver enough output level, the input sensitivity
should be increased by the turning the control carefully clockwise. The setting of the control affects both the lowlevel and the highlevel inputs!
Follow the subsequent steps to perfectly adapt the signal processors input sensitivity to your signal source by using the control:
- Don't connect any amplifiers to the outputs of the HELIX DSP MINI during this setup.
- Turn on the signal processor.
- Adjust the volume of your radio to approx. 90 % of the max. volume and playback a 1 kHz full scale test tone (0 dB) via CD drive.
- If the Clipping LED already lights up, you have to reduce the input sensitivity via control (page 16, item 4; Input Sensitivity) until the LED turns off.
- Increase the input sensitivity by turning the control clockwise until the LED lights up. Now turn the control counterclockwise until the Clipping LED turns off again.
5. Connection to power supply
Make sure to disconnect the battery before installing the HELIX DSP MINI!
Solely use the included screw-type terminal to connect the HELIX DSP MINI to a power supply. Make sure of correct polarity. The ground wire must be connected to the vehicle chassis at a non-insulated point. Inadequate grounding causes audible interference and malfunctions.
The positive wire has to be connected to the battery's positive post or a power distribution block. Though the current draw of the HELIX DSP MINI is rather low (approx. 400 mA) we recommend a minimum wire gauge of 1 mm ^2 / AWG18 for both power supply wires.
6. Connecting the remote input
The remote input of the Power Input has to be connected to the radio remote output if the signal processors lowlevel Line Inputs or the Optical Input are / is used as signal input/s. We do not recommend controlling the remote input via the ignition switch to avoid pop noise during turn on / off.
If the Highlevel Input is used this input does not need to be connected as long as the car radio has BTL output stages.
7. Configuration of the remote input
The DSP MINI will be turned on automatically if the Highlevel Input is used or if a signal is applied to the remote input terminal. The Auto Remote switch (page 16, item 6; Auto Remote) allows to deactivate the automatic turn-on feature of the highlevel inputs. The feature should be deactivated (Auto Remote = Off) if there are e.g. noises while switching on / off the signal processor.
Note: If the automatic turn-on function is deactivated it is mandatory to use the remote input terminal to power up the signal processor! The highlevel signal will be ignored in this case.
Note: The automatic turn-on feature of the highlevel inputs is activated ex works.
8. Configuration of the DSP
The general DSP settings should be conducted with the DSP PC-Tool software before using the signal processor for the first time.
Ignoring this advice may result in damaging the connected amplifiers / the loudspeakers. Information about connecting the DSP MINI to a computer can be found on page 20.
9. Connecting the remote output
This output (Remote out) is used to supply remote signals to the external amplifier/s. Always use this remote output signal to turn on the amplifier/s in order to avoid on / off switching noises.
It is possible to freely configure the HELIX DSP MINI with our DSP PC-Tool software.
The user interface is designed for easy handling of all functions and allows an individual adjustment of each of the six DSP channels. Prior to connecting the signal processor to your PC visit our website and download the latest version of the DSP PC-Tool software.
Check from time to time for software updates. You will find the software and the respective user manual on www.audiotec-fischer.com.
We strongly recommend to carefully read the user manual (Sound Tuning Magazine) before using the software for the first time in order to avoid any complications and failures.
Important: Make sure that the signal processor is not connected to your computer before the software and USB driver are installed!
In the following the most important steps how to connect and the first start-up are described:
-
Download the latest version of the DSP PC-Tool software (available on our website www.audiotec-fischer.com) and install it on your computer.
-
Connect the signal processor to your computer using the USB cable that is included in delivery. If you have to bridge longer distances please use an active USB extension cable with integrated repeater and no passive extension.
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First turn on the signal processor and then start the software. The operating software will be updated automatically to the latest version if it is not up-to-date.
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Now you are able to configure your HELIX DSP MINI with our intuitive DSP PC-Tool software. Nevertheless, interesting and useful hints can be found e.g. in our "Sound Tuning Magazine", which can be downloaded for free from our website.
Caution: We highly recommend to set the volume of your car radio to minimum position during first start-up. Additionally no devices should be connected to the signal processor until general settings in the DSP PC-Tool software have been made. Especially if the DSP MINI will be used in fully active applications, a wrong setup can destroy your speakers right away.
Configuration notes for the DSP sound effects
The HELIX DSP MINI offers unique DSP sound effects like "Augmented Bass Processing", "StageXpander", "RealCenter" and many more. In order to enjoy all DSP sound effects, specific settings have to be made in the hardware and software configuration.
Notes for Center Processing with its functions RealCenter and ClarityXpander
If you want to use the RealCenter and ClarityXpander function for a center speaker follow the subsequent steps:
- You need at least one left and one right analog or digital input signal.
- Open the IO menu of the DSP PC-Tool. Route the left and the right analog or digital input signal (no sum signal) to the output channels A and B (see example in the following image). It does not matter, if the output channels are defined as front, rear or center channel.
Note: You will achieve the best performance the input signal is a fullrange signal.
- Generate a summation signal from the same two input signals and route this to the output channel E. This channel should be defined as "Center Full".
- Repeat steps two and three for all routing matrices that are used.
- Now switch to the FX menu and activate the desired sound effect by placing a tick.
Note: The Center Processing affects only the output channel E.
Notes for StageXpander and ClarityXpander function
Normally, the settings of the StageXpander and Front ClarityXpander only affect the output channels A and B. If you want to drive a fully active 2-way front system, it is necessary that these sound features affect all four output channels A to D. Therefore, you have to activate the routing in the FX menu under "Front processing" by activating the "Link to C+D" function.
Notes for Augmented Bass Processing with its functions Dynamic Bass Enhancement and SubXpander
There are as well some adjustments necessary if the Augmented Bass Processing and its sound effects shall be used.
- You need at least one left and one right analog or digital input signal.
Note: If you use the analog input then you achieve the best performance if all four input signals are used.
- Open the IO menu in the DSP PC-Tool. Generate a summation signal from all left and right analog if or digital input signals and route this to output channel F.
- Repeat the routing for all routing matrices used.
- Now switch to the FX menu and activate the desired sound effect by placing a tick.
Note: The Augmented Bass Processing affects only the output channel F.
HELIX Extension Card slot (HEC slot)
It is possible to extend the functionality of the HELIX DSP MINI by adding further interfaces like a Bluetooth® Audio Streaming module, a High Resolution Audio USB soundcard etc.
To install a HELIX Extension Card it is necessary to remove the side panel of the DSP MINI and replace it by the new side panel that comes with the HEC module.
Attention: Install the HEC module only in the designated device and its specific slot. Using the HEC module in other devices or slots can result in damage of the HEC module, the signal processor, the head unit / car radio or other connected devices!
Read in the following the steps how to install a HEC module:
- First disconnect all cables from the device.
- Dismantle the side panel where the USB input is located by removing the four Phillips screws and one Allen screw.
- Pull out the bottom plate sideways.
- Prepare the module for installing it into the device. Any further mounting information will be found in the instruction manual of the respective HEC module.
- Insert the HEC module into the specific slot of the device which is marked in the following picture.
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Close-up of an electronic circuit board with capacitors and connectors (no visible text or symbols)- Make sure that the HEC module is installed properly and all pins are fully inserted into the socket.
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Close-up of a circuit board with multiple LED connectors and a green checkmark overlay (no readable text or symbols)
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Close-up of a computer motherboard with visible electronic components and a red X symbol overlay (no readable text or symbols)- Reinsert the bottom plate and fix the new side panel which is delivered with the HEC module with the four Phillips screws and one Allen screw.
- Bolt the HEC module to the side panel. Precise mounting information will be found in the instruction manual of the respective HEC module.
- Reconnect all cables to the device.
- Turn on the signal processor. The HEC module is automatically detected by the device and the Status LED of the HEC module lights up green.
- Now you are able to configure the HEC module in the DSP PC-Tool software.
96 kHz sampling rate
The HELIX DSP MINI allows to handle all signals with the doubled sampling rate of 96 kHz. Thus the audio bandwidth is no longer limited to usual values like 22 kHz but allows an extended frequency response to more than 40 kHz. Doubling the sampling rate requires significantly higher DSP power as the number of possible arithmetic operations is halved. Only the implementation of the latest DSP chip generation allows raising the sampling rate to 96 kHz and adding new features at the same time.
ACO - Advanced 32 Bit CoProcessor
The HELIX DSP MINI incorporates an extraordinary powerful 32 Bit CoProcessor of the latest generation for all monitoring and communication tasks, both internally and externally. In opposite to the 8 Bit predecessor generation this MCU achieves way higher speeds with respect to setup switching and data communication with our DSP PC-Tool software. A further significant advantage is the integrated, native boot loader of the CoProcessor. It allows software upgrades of all components of the DSP in order to adjust the microcontroller-controlled ADEP.3 circuit for example at future modifications / changes in the diagnostic system of factory radios or if the device will be extended with additional interfaces. In addition, thanks to the new flash memory, the ACO offers 10 memory locations for sound set-ups instead of the common two.
Smart highlevel input ADEP.3
Modern, factory-installed car radios incorporate sophisticated possibilities of diagnosing the connected speakers. In particular the latest generation of car radios are equipped with additional monitoring functions so that failure messages and loss of specific features (e.g. fader function) quite often appear if a signal processor will be hooked up - but not with the DSP MINI.
The new ADEP.3 circuit (Advanced Diagnostics Error Protection, 3rd Generation) avoids all these problems without loading the speaker outputs of the OE radio during high volumes unnecessarily.
Start-Stop capability
The switched power supply of the HELIX DSP MINI assures a constant internal supply voltage even if the battery's voltage drops to 6 Volts during engine crank.
Power Save Mode
The Power Save Mode is incorporated in the basic setup. It allows to significantly reduce the power consumption of the amplifiers that are connected to the HELIX DSP MINI once there's no input signal present for more than 60 seconds. Please note that in many up-to-date cars with "CAN" or any other internal bus structures it may happen that the radio remains "invisibly" turned on for up to 45 min. even after locking and leaving the car! Once the "Power Save Mode" is active the remote output and therefore the connected amplifiers will be turned off. The HELIX DSP MINI will reactivate the remote output within a second if a music signal is applied. It is possible to either modify the turn-off time of 60 sec. or completely deactivate the "Power Save Mode" via the DSP PC-Tool software.
Automatic Digital Signal Detection
Switching from analog input to the digital input is done automatically as soon as a signal is detected on the Optical Input. This feature can be deactivated in the DSP PC-Tool software. Alternatively you can use an optional remote control for manual switching between analog and digital inputs.
Technical Data
| Inputs | 4 x RCA / Cinch |
| 4 x Highlevel speaker input | |
| 1 x Optical SPDIF (12 - 96 kHz) | |
| 1 x Remote In | |
| Input sensitivity | RCA / Cinch 2 - 4 Volts |
| Highlevel 5 - 11 Volts | |
| Outputs | 6 x RCA / Cinch |
| 1 x Remote Out | |
| Output voltage | 4 Volts |
| Frequency response | 10 Hz - 44,000 Hz |
| DSP resolution | 64 Bit |
| DSP power | 295 MHz (1.2 billion MAC operations/second) |
| Sampling rate | 96 kHz |
| DSP type | Audio signal processor |
| Signal converters | A/D: Asahi Kasei |
| D/A: Asahi Kasei | |
| Signal-to-noise ratio digital input | 106 dB (A-weighted) |
| Signal-to-noise ratio analog input | 103 dB (A-weighted) |
| Total harmonic distortion (THD+N) digital input | < 0.001 % |
| Total harmonic distortion (THD+N) analog input | < 0.002 % |
| IM distortion (IMD) digital input | < 0.004 % |
| IM distortion (IMD) analog input | < 0.004 % |
| Crosstalk | > 90 dB |
| Operating voltage | 9.6 - 18 Volts (max. 5 sec. down to 6 Volts) |
| Current draw | < 400 mA |
| Max. remote output current | 500 mA |
| Additional features | HEC slot, Ground lift switch, Control Input, 32 Bit CoProcessor, ADEP.3 circuit, Auto Remote switch |
| Dimensions (H x W x D) | 40 x 177 x 104 mm / 1.58 x 6.97 x 4.09" |
Warranty Disclaimer
The limited warranty comply with legal regulations. Failures or damages caused by overload or improper use are not covered by the warranty. Please return the defective product only with a valid proof of purchase and a detailed malfunction description. Technical specifications are subject to change!
Errors are reserved! For damages on the vehicle and the device, caused by handling errors of the device, we can't assume liability. This product is tagged with a CE-Certifikation mark. Thereby these devices are certified for the use in vehicles within the European Community (EC).
Note: "The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Audiotec Fischer GmbH is under license. Other trademarks and trade names are those of their respective owners."
AUDIOTEC
FISCHER
- ACO - Advanced 32 Bit CoProcessor
- General instructions
- General installation instructions for HELIX components
- General instruction for connecting the HELIX DSP MINI signal processor
- Connectors and control units
- ① Line Input
- ② Clipping LED
- ③ Highlevel Input
- ④ Input Sensitivity
- ⑤ Optical Input
- ⑥ Auto Remote
- ⑦ Power Input
- ⑧ Ground lift switch
- ⑨ Control pushbutton
- Status LED
- USB input
- Control Input
- Line Output
- remote output of the DSP to activate connected amplifiers!
- n1 USB input
- Connection of HELIX DSP MINI to the head unit / car radio:
- Connecting the pre-amplifier inputs
- Connecting the highlevel speaker inputs
- Connecting a digital signal source
- Adjustment of the input sensitivity
- Connection to power supply
- Make sure to disconnect the battery before installing the HELIX DSP MINI!
- Connecting the remote input
- Configuration of the remote input
- Configuration of the DSP
- Connecting the remote output
- Configuration notes for the DSP sound effects
- Notes for Center Processing with its functions RealCenter and ClarityXpander
- Notes for StageXpander and ClarityXpander function
- Notes for Augmented Bass Processing with its functions Dynamic Bass Enhancement and SubXpander
- HELIX Extension Card slot (HEC slot)
- kHz sampling rate
- Smart highlevel input ADEP.3
- Start-Stop capability
- Power Save Mode
- Automatic Digital Signal Detection
- Technical Data
- Warranty Disclaimer
Brand : Audiotec Fischer
Model : DSP MINI
Category : Audio/video converter