GTA 470 DSP - Car stereo BLAUPUNKT - Free user manual and instructions

USER MANUAL GTA 470 DSP BLAUPUNKT

Recycling und Entsorgung Bitte nutzen Sie zur Entsorgung des Produktes die zur Verfügung stehenden Rückgabe- und Sammel- systeme. Änderungen vorbehalten. ENGLISH Warranty We provide a manufacturer's warranty for products bought within the European Union. For devices purchased outside the European Union, the warranty terms issued by our re- spective responsible domestic agency are valid. The warranty terms can be called up from www.blaupunkt.com. Recommendation The performance of an ampli er can only be as good as its installation. A correct installation increases the overall performance of your car sound system. The GTA ampli er should be installed by a trained person. If you would to install it yourself, please read these installation instructions very carefully and allow yourself su cient time for the installation. In conclusion, allow us a few words about the topic of health protection: During the playback of music in your vehicle, please consider that continuous sound-pressure levels above 100 dB can lead to permanent damages to the human ear and even to loss of hearing. Using today's high-performance systems and loudspeaker con gurations allows for reaching sound- pressure levels above 130 dB. Safety notes Please observe the following safety notes during the instal- lation and connection. – Disconnect the negative pole of the battery! Observe the safety notes of the vehicle manufacturer. – When you drill holes, ensure that you do not damage any vehicle components. – The cross section of the plus and minus cable may not be less than 6 mm

– Use cable glands for holes with sharp edges. – An incorrect installation can result in malfunctions of the electronic vehicle systems or your car sound system. Installation and connection instructions With respect to accident safety, the GTA 470 DSP must be secured in a professional way. When selecting the installation location, select a dry location that o ers su cient air circulation for cooling the ampli er. The GTA 470 DSP must not be installed on rear shelves, rear seats or other locations that are open to the front. The installation surface must be suitable to accept the ac- companying screws and provide a rm support. The ampli er power cable must be tted with a fuse no more than 30 cm from the battery to protect the vehicle battery in case of a short circuit between power ampli er and battery. The fuse of the ampli er protects only the ampli er, not the vehicle battery. Only loudspeakers with 2 - 4 Ω impedance may be used (see table or installation drawings). Observe the maximum power handling capacity (music output). Do not connect loudspeakers to earth, use only the referenced terminals. GTA_470_DSP_13LG.indd 6GTA_470_DSP_13LG.indd 6 24.08.12 15:4924.08.12 15:49GTA 470 DSP

Audio inputs The preampli er outputs are connected to the cinch (RCA) sockets via a shielded audio line (see Fig. 3). Plus / minus connection – We recommend a minimum cross section of 6 mm

– Route commercially available plus cables to the battery and connect via fuse holder. – Use cable glands for holes with sharp edges. – Securely fasten commercially available minus cables to a noise-free earth point (chassis screw, chassis metal) (not to the minus pole of the battery). – Scrap the contact surfaces of the earth point until they are bright and grease with graphite grease. Integrated fuses (2 x 20 A) The fuses integrated in the ampli er protect the power ampli er and the entire electrical system in case of an error. If a replacement fuse is used, never bridge fuses or replace them with a type with higher current. Connection examples Connection of the voltage supply ..................................Fig. 2 Audio inputs ...........................................................................Fig. 3 Loudspeaker connections .................................................Fig. 4 - 8 Remote control connection (optional equipment) ......Fig. 9 +12V Remote connection of the ampli er with switchable +12 V voltage source. This allows the ampli er to be switched on and o using the on/o -switch of the car sound system. Loudspeaker connections (If the ampli er is to be jumpered, continue with the section "Bridged loudspeaker connections" at this point). As with every audio component, the correct polarisation of ampli er and loudspeakers is of essentially importance for a good bass response. For this reason, ensure that the positive connection (+) of the ampli er is connected with the posi- tive connection (+) of the loudspeaker; the same applies to the negative connections (-). In addition, the left ampli er channel must be connected with the left loudspeaker and the right ampli er channel with the right loudspeaker. Bridged loudspeaker connections The GTA ampli er can also be bridged for a mono con gura- tion. This allows the ampli er to be used for one or several subwoofers or a mid-range driver. In this con guration, the ampli er combines the right and left channel to a single- channel output (mono output). Note: The ampli er can add the right and left signal information only if the right as well as the left cinch (RCA) connection were carried out. Caution: In a bridge circuit, the ampli er load must be 4 Ω or higher. A lower load leads to an overheating or switch- o of the ampli er and can cause permanent damages. Subwoofer connection The GTA 470 DSP features three di erent options of con- necting a subwoofer: –An active subwoofer or an additional ampli er are con- nected with a cinch (RCA) cable to the two SUBWOOFER OUTPUT sockets (see Fig.7). The setting options of the integrated DSP (Digital Sound Processor) can be used in this case. –A passive subwoofer is connected to the bridged loud- speaker output (see the section "Bridged loudspeaker connections"). To be able to use the setting options of the integrated DSP (Digital Sound Processor), the two REAR INPUT sockets must additionally be connected with a commercially available cinch (RCA) cable with the two SUBWOOFER OUTPUT sockets (see Fig. 8). –A passive subwoofer is connected to the bridged loud- speaker output (see the section "Bridged loudspeaker connections"). The setting options of the integrated DSP (Digital Sound Processor) cannot be used in this case. DSP sound settings (FRONT and REAR loudspeakers) A variety of options is available to optimise the sound of the connected loudspeakers: – GAIN control (FRONT and REAR) The GAIN control is used to adjust the input sensitivity of the power ampli er to the output voltage of your car sound system preamplifier output. The GTA 470 DSP features separate controls for the FRONT and REAR loud- speakers. In each case, the adjustment range is from 0.2 V to 5 V. If a car sound system of a third party manufacturer is connected, the input sensitivity must be adjusted cor- responding to the manufacturer data. A few important explanations in this context: By turning the GAIN control clockwise, the input sensitivity of the ampli er and, therefore, also the volume increases. However, this is not a volume control. In the end position, it is not possible to achieve a higher ampli er output, even if it sounds like that at rst. The system merely increases the volume faster if the volume control of the car sound system is turned up. – FULL/HI/LOW switch and X-OVER control (FRONT and REAR) For the GTA 470 DSP, the type of frequency crossover ("Low-Pass" or "High-Pass") and the desired cut-o fre- quency can be adjusted separately for the FRONT and REAR loudspeakers. Select the cut-o frequency up to which lower frequencies (high-pass) or higher frequencies (low-pass) should be blocked. Only frequencies above the cut-o frequency (high-pass) or below the cut-o frequency (low-pass) are passed on to the loudspeakers. The cut-o frequency is dependent upon the frequency range of the loudspeakers (see recommended frequency range of the loudspeakers). "High-Pass" (switch setting: HI) With a setting of 80 Hz, the ampli er has a frequency range from 80 Hz to 30,000 Hz. "Low-Pass" (switch setting: LOW) This control is active if the switch is in the LOW position, and allows for setting the desired entry frequency. GTA_470_DSP_13LG.indd 7GTA_470_DSP_13LG.indd 7 24.08.12 15:4924.08.12 15:49GTA 470 DSP

Example: At a setting of 80 Hz, the ampli er has a frequency range of 10 Hz to 80 Hz. "Full Range" (switch setting: FULL) In this switch setting, the frequency control is deactivated and the entire frequency spectrum is being ampli ed. – F/R SUBSONIC switch and F/R SUBSONIC control To avoid interferences from extremely low frequencies, you can use the subsonic lter to limit the low-frequency response of the device. The setting of the subsonic lter suppresses all frequencies below the de ned frequency. Example: At a setting of 40 Hz, the frequency range from 0 Hz to 40Hz is being suppressed. This control is used to control the connected FRONT as well as REAR loudspeakers. If the F/R SUBSONIC switch is set to F (= FRONT loudspeaker) or R (= REAR loudspeaker), it is possible to set the frequency crossover for the front or the rear loudspeakers. Even if the F/R SUBSONIC switch is changed over (e.g. from F to R), the value for the re- spective other loudspeaker group remains stored in the integrated DSP. Example: The switch is changed to the F position and the frequency crossover 40 Hz is set at the control. After the change- over to the R position, the value 50 Hz is set. If it is now changed back to the F position, the control remains at the value 50 Hz set last. If the control is now being moved, the adjustment does not start at the stored 40 Hz, but at the displayed 50 Hz. DSP sound settings (SUBWOOFER) The following options are available to optimise the sound for the use of a subwoofer: – X-OVER control (SUBWOOFER) For the GTA 470 DSP, the type of frequency crossover ("Low-Pass") can be adjusted. Select the cut-o frequency up to which higher frequencies should be blocked. Only frequencies that are below the cut-off frequency are passed on to the loudspeakers. Example: At a setting of 80 Hz, the ampli er has a frequency range of 10 Hz to 80 Hz. – SUBSONIC control (SUBWOOFER) To avoid interferences from extremely low frequencies, you can use the subsonic lter to limit the low-frequency response of the device. The setting of the subsonic lter suppresses all frequencies below the de ned frequency. Example: At a setting of 40 Hz, the frequency range from 0 Hz to 40Hz is being suppressed. – PHASE control (SUBWOOFER) This control allows the stepless change of the phase posi- tion of the subwoofer from 0° to 180°. It is used for the ne tuning with the other connected loudspeakers and if set correctly, it can prevent any possibly occurring mutual cancellation of low frequencies within the audio system. F/R COMPRESSOR and SUB COMPRESSOR switches This function is used to protect the connected loudspeakers and subwoofer. If the switch is in the ON position, the out- put volume is reduced by 10 dB. The GTA 470 DSP features separate switches for the connected loudspeakers (F/R COMPRESSOR) and subwoofer (SUB COMPRESSOR). FRONT dB/Oct, REAR dB/Oct and SUB dB/Oct switches These switches are used to set the attenuation of the installed lter separately for the FRONT and REAR loudspeakers and the connected subwoofer. A high value ensures a steep lter slope, which translates to a strict separation between blocked and forwarded frequencies. A low value ensures a soft separation, which translates to a gradual transition from blocked to forwarded frequencies. The settings 18, 24 or 48dB per octave are available for attenuation. Caution: If the switches FRONT and/or REAR are set to FULL, the switches FRONT dB/Oct and REAR dB/Oct are without function. Initial setup of the ampli er We recommend the following sequence for the initial setup of the ampli er:

1. Settings for the front loudspeakers

2. Settings for the rear loudspeakers

3. Settings for the connected subwoofer

You should always proceed in the same way, e.g. setting the treble rst, then the bass. Setting options on the remote control (optional equipment) For the GTA 470 DSP ampli er, the GTA RC01 cable remote control (1 101 210 001 001) is available as an accessory. It can be used to perform the following settings: – DELAY control and A/B (FRONT/REAR) switch This allows setting a sound delay for the two left loud- speakers (front and rear loudspeakers separately). The control has 256 levels, each of the levels corresponds to a distance of 7 mm. The maximum adjustable value is approx. 1.8 metres. If the A/B switch is set to A (= FRONT loudspeaker) or B (= REAR loudspeaker), it is possible to set the delay value for the front left or the front rear loudspeaker. Even if the A/B switch is changed over (e.g. from A to B), the value for the respective other loudspeaker group remains stored in the integrated DSP. Example: The switch is set to position A and the delay of 1.8 metres is set at the control. After the change-over to the B position, the value 1metre is set. If it is now changed back to the A position, the control remains at the value 1 metre set last. If the control is now being moved, the adjustment does not start at the stored 1.8 metres, but at the dis- played 1 metre. GTA_470_DSP_13LG.indd 8GTA_470_DSP_13LG.indd 8 24.08.12 15:4924.08.12 15:49GTA 470 DSP

– LEVEL control and BB/SHS switch With these switches, you can individually adjust the value for the bass increase. Two di erent types are available. BB (Bass Boost): A value from 0 to 15 dB can be set at a frequency of 45 Hz. SHS (Sub Harmonic Synthesizer): This setting is particularly suited for music with only minor bass portions. Power-on indicator (PWR / PRO) Green LED: Output stage on, regular operating status. Red LED: Output stage is electronically switched o due to an error. Technical data Quadro mode Max power 4 x 140 W / 4 Ω Fig. 4, 5 Stereo mode Max power 2 x 420 W / 4 Ω Fig. 6 Quadro mode Max power 4 x 200 W / 2 Ω Fig. 4, 5 Quadro mode RMS power 4 x 70 W / 4 Ω Fig. 4, 5 Stereo mode RMS power 2 x 200 W / 4 Ω Fig. 6 Quadro mode RMS power 4 x 100 W / 2 Ω Fig. 4, 5 Frequency response 10 Hz - 30,000 Hz Signal-to-noise ratio > 92 dB @ RMS power Signal-to-noise ratio > 75 dB @ 1 w/ 1 kHz Distortion factor (RMS) < 0.05 % Stability 2 Ω (4 Ω in bridge mode) Input sensitivity 0.2 V - 5 V Low-pass lter (Low-Pass) 50 Hz - 5,000 Hz High-pass lter (High-Pass) 50 Hz - 5,000 Hz Subsonic lter 0 Hz - 80 Hz Compressor limiter 10 dB Dimensions W x H x D (mm) W x H x D (") 323 x 54 x 198