AMP160XL - Receiver Proel - Free user manual and instructions

Product Type	Professional Mixer Amplifier
Model	AMP160XL
Output Power RMS	160W
Inputs	4x MIC/LINE balanced (with 48V phantom), 3x AUX (selectable), 1x MAIN IN
Input Sensitivity	MIC: -40dBV / 600Ω; LINE: 0dBV / 100kΩ; AUX: 0dBV / 47kΩ; MAIN IN: 0dBV / 10kΩ
Signal Outputs	PRE OUT (1V / 600Ω), REC OUT (1V / 600Ω), BAL OUTPUT (1V / 600Ω)
Controls	Master Volume, Treble Tone, Bass Tone, 4x MIC/LINE Volume, AUX Volume
Loudspeaker Outputs	100V / 70V / 4Ω (terminal block)
Frequency Response	80Hz – 16kHz (-3dB)
Distortion (THD)	< 0.5% (@ 1kHz, nominal power)
Signal-to-Noise Ratio	MIC: ≥70dB; LINE: ≥70dB; AUX: ≥80dB
Power Supply	Auto-switch 100-240V~ 50/60Hz, 160VA
Operating Temperature	0°C – 40°C
Dimensions (WxHxD)	439 x 44 x 278 mm (19" rack-mountable with included adapters: 483 x 44 x 278 mm)
Weight	5 kg
Key Features	VOX priority per input, Chime with routing and level, 48V phantom power, Dry contact muting, SMPS technology, 1U rack design
Maintenance & Cleaning	Clean exterior with compressed air or damp cloth; do not use solvents. No user-serviceable parts inside.
Safety	Do not expose to rain or moisture. Disconnect power when not in use. Use only with grounded outlets. Refer servicing to qualified personnel.
Spare Parts & Repairability	No user-serviceable parts. Contact authorized service center for any issues.
Package Contents	Amplifier, rack adapters, power cable, operating manual

Frequently Asked Questions - AMP160XL Proel

How do I connect speakers to the AMP160XL?

The amplifier has three output terminals: COM, 4Ω, 70V, and 100V. For constant impedance speakers (4Ω), connect between COM and 4Ω. For constant voltage lines (70V or 100V), connect between COM and the corresponding voltage terminal. Ensure total load does not exceed 160W and total impedance matches the output.

Can I use condenser microphones with phantom power?

Yes, each of the four MIC/LINE inputs can supply 48V phantom power when the input selector is set to PH (Phantom). Use a balanced XLR or Euroblock connection.

How do I set up the VOX priority function?

VOX priority is enabled individually for inputs 1-4 via DIP switches labelled Vox Priority Enabling (rear panel). When VOX is ON on a channel, an audio signal on that input will automatically mute the AUX inputs and channels with VOX OFF. Use the MIC PRIORITY trimmer to adjust the amount of attenuation.

What is the Chime function and how do I use it?

The Chime function plays an alert tone through the speakers when a dry contact on an input is closed. Enable the chime per input via the Chime Routing DIP switches. Adjust the chime volume with the Chime Level trimmer.

Can I connect an external processor or equalizer?

Yes, the amplifier has a PRE OUT and AMP IN loop. Remove the jumper between them and insert your processor (e.g., equalizer, crossover) between the two terminals. The PRE OUT delivers 1V/600Ω, and AMP IN expects 0dBV/10kΩ.

What type of power supply does the AMP160XL require?

It has an auto-switching power supply (100-240V~, 50/60Hz). Connect the included power cable to a grounded outlet. The unit consumes 160VA.

How do I clean and maintain the amplifier?

Disconnect the power. Clean the exterior with compressed air or a slightly damp cloth. Do not use solvents, alcohol, or flammable fluids. There are no user-serviceable parts inside; refer to qualified service personnel for any repairs.

What are the safety precautions I should follow?

Read all instructions. Do not use near water or expose to rain/moisture. Do not block ventilation openings. Use only with a grounded outlet. Disconnect during storms or long periods of non-use. Do not open the unit—risk of electric shock.

Can I use the amplifier in a rack?

Yes, it comes with 19" rack adapters, allowing installation in a standard 1U rack space. The dimensions with rack ears are 483 x 44 x 278 mm.

What is the maximum load for the 100V line?

The total power of speakers connected to the 100V line must not exceed 160W. The total impedance must be such that the sum of individual speaker power (with transformers rated at 100V) does not exceed the amplifier's rated power.

USER MANUAL AMP160XL Proel

fig.1

1. POWER

graph LR
    A["PROCESSOR"] --> B["PRODIVE"]
    A --> C["AMP Pi"]

Model:	AMP160XL
Output power RMS	160W
Inputs	4xMIC/LINE balanced3 AUX (selectable)1x MAIN IN (normally connected to PRE OUT)
Input Sensitivity	MIC: -40dBV / 600 Ω balanced (with 48Vphantom)LINE: 0dBV / 100 KΩ balancedAUX: 0dBV / 47 KΩ unbalancedMAIN IN: 0dBV / 10KΩ unbalanced
Signal Output	PRE OUT (normally connected to MAIN IN)PRE OUT: 1V / 600 ΩREC OUT: 1V / 600 ΩBAL OUTPUT:1V / 600 Ω
Controls	MASTER VOLUME CONTROL1 TREBLE TONE CONTROL1 BASS TONE CONTROL4 MIC/LINE VOLUME CONTROLS1 AUX VOLUME CONTROL
Loudspeakers outputs	100/70V/4Ω
Frequency response	80Hz -16KHz (-3dB)
Distortion (THD)	< 0.5% (@ Pnom 1KHz)
S/N Ratio	MIC: ≥70dBLINE: ≥70dBAUX: ≥80dB
Power Supply	autoswitch 100-240V~ 50/60Hz
Operating temperature	0 -40°C
Input/Output Connectors	terminal blockRCA
Power Consumption	160VA
Dimensions (LxHxP)	439 x 44 x 278 mm483 x 44 x 278 mm - 1U rack19"
Weight	5 Kg

CAUTION: To reduce the risk of electric shock do not remove cover (or back panel). No user serviceable parts inside. Refer servicing to qualified personnel only.

WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.

This symbol is intended to alert the user of the presence of uninsulated dangerous voltage within the product enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

This symbol is intended to alert the user of the presence of important operating and maintenance (servicing) instruction in the literature accompanying the appliance. Please carefully read the owner's manual.

INSTRUCTIONS:

All safety and operating instructions should be read before the product is operated.

Retain these instructions:

All safety and operating instructions should be retained for future reference.

This owner's manual should be considered as a part of the product, it must accompany it at all times, and it needs to be delivered to the new user when this product is sold. In this way the new owner will be aware of all the installation, operating and safety instructions.

Heed all warnings:

All warnings on the product and in owner's manual should be adhered to.

Heed all warnings.

Follow all instructions:

All operating and user's instructions must be followed.

Sentences preceded by ⚠ symbol contain important safety instruction. Please read it carefully.

DETAILED SAFETY INSTRUCTIONS.

Water and moisture:

This apparatus should not be used near water (i.e. bathtub, kitchen sink, swimming pools, etc.)

Ventilation:

This apparatus should be placed in a position that doesn't interfere with its correct ventilation. This unit, for example, should not be placed on a bed, sofa cover o similar surfaces that could cover ventilation openings, or placed in a built-in installation, such a bookcase or a cabinet that could block air flow through ventilation openings.

Heat:

This apparatus should be placed away from sources of heat, like radiators, heat registers, stoves or other products (including amplifiers) that produce heat.

Power sources:

1. This apparatus should only be connected to a power source of type specified in this owner's manual or on the unit.
2. If the supplied AC power cable plug is different from wall socket, please contact an electrician to change the AC power plug.

Grounding or Polarization:

1. All precautions must be observed to avoid defeating grounding or polarization.
2. Unit metal parts are grounded through the AC power cord.
3. If the AC power outlet doesn't have grounding, consult an electrician for outlet grounding.

Power cable protection:

The power cable should be routed in such a way that it will not be walked on or pinched by items placed upon or against it, paying particular attention to cables at their connections, receptacles and wall outlet.

Cleaning:

1. You can clean the exterior of the unit with compressed air or a damp cloth.
2. Don't clean the unit using solvents like trichloroethylene, thinners, alcohol, or other volatile or flammable fluids.

No use periods:

The unit AC power cable should be unplugged from the outlet if it's unused for long periods.

Objects or liquid entry into the unit:

Be careful that no objects fall into the unit or that no liquid is spilled inside the unit through ventilation openings.

Safe power line use:

1. Hold the plug and the wall outlet firmly while disconnecting the unit from AC power.
2. When the unit will not be used for a long period of time, please unplug the power cord from AC power outlet.
3. To avoid power cable damage, don't strain the AC power cable and don't bundle it.
4. In order to avoid damage to the unit's power cable, be sure that the power cable is not walked on or pinched by heavy objects.

Unit relocation:

Before relocating the unit, please control the unit is turned off. The power cord must be unplugged from the wall outlet, and all the connecting cables should be disconnected as well.

Do not open this unit:

Do not attempt to open or repair this unit yourself. For any problem not described in this owner's manual, please refer to qualified personnel only or consult us or your National Distributor. Any improper operation could result in fire or electric shock.

Damages requiring services:

1. Do not attempt to perform operations not described in this user's manual.

2. In the following cases please refer to an authorized service center or skilled personnel:

3. When the unit works improperly or it doesn't work at all.

4. If power cord or plug is damaged.
5. If liquid has spilled, or objects have fallen into the unit.
6. The unit has been exposed to rain.
7. The unit doesn't operate normally or exhibits a marked change in performance.
8. If the product has been dropped or has been damaged in any way.

Maintenance:

The user shouldn't attempt maintenance not described in this user's manual. All maintenance should be performed by qualified personnel only.

IMPORTANT SAFETY INSTRUCTIONS:

1. Install this unit following owner's manual instructions.
2. Do not install, connect or disconnect power supply when the unit is powered, otherwise there is a high risk of electric shock.
3. Do not open the unit, there are no user serviceable parts inside.
4. If you detect a particular smell from the unit, please immediately turn it off and disconnect the AC power cord.
5. Don't block the unit's ventilation openings.
6. Avoid using this unit in overload for a long period.
7. Don't force commands (switches, controls, etc.).
8. To obtain good speaker wire contact, please tighten the screw terminals firmly.
9. For safety reasons, do not defeat the grounding connection. Grounding is for user safety.
10. Use only connectors and accessories suggested by the manufacturer.

11. This unit should be fitted in an equipment rack (see INSTALLATION) and kept far from:

12. Wet places

13. Direct exposure to heat sources (like sun light)

14. Improperly ventilated places

15. Disconnect the power cord during storms or when the unit is not in use.

16. In order to prevent fire and reduce risk of electric shock, it is necessary to keep the unit far from dripping water. Please don't put cups, vases or other object containing liquids over the unit. In case of interference from source signal, THD value will raise over 10%. Don't place this unit in a bookshelf or in other enclosed spaces.

17. PROEL S.P.A. is not responsible for any damage that occurs due to an incorrect installation of the unit.

Thank you for choosing Proel and for your trust in our brand: we strive to guarantee professionalism, accuracy, high quality and reliability to our customers. All our products comply with EC regulations on sound reinforcement devices.

2. DESCRIPTION

160W, 70/100V, 4Ω professional mixer amplifier.

This new series of audio power amplifiers was designed to fulfil an evolving market in the most flexible and professional manner. The new range responds to precise operating criteria and was designed and tested to guarantee total reliability of use, also with continuous operation.

Thanks to the use of power supply switching with SMPS (switch mode power supply) technology and to the constant voltage output 70/100V obtained electronically without transformers, it was possible to design the amplifier in only one rack unit, succeeding in containing the weight and size.

MAIN FUNCTIONS:

• Speakers overload and short-circuit protection circuit
• Led start-up indicator
• Led level indicator
  • Volume general control (Master)
• Separated Level Controls for 1 ÷ 5 inputs
• Low and high tone adjustment
• Illuminated knobs
• 4 MIC / MIC Phantom 48V / LINE inputs balanced on Euroblock terminal
• 3 AUX switchable inputs from front selectors
• 1 ÷ 4 Inputs with independent priority function (VOX / Contact) on other inputs selectable by dip-switch 1 ÷ 4
  • Function MAIN - IN/OUT
• 3 outputs, one at constant impedance (4Ω) and two at constant voltage (70/100V)
• CHIME function independent for each input (routing)
  • REC OUT output on RCA
  • Line level output balanced on Euroblock terminal
• 230/117V\~ 50/60Hz autoswitch power supply
• 1U 19" rack adapters

Product in compliance with CE standards

3. FRONT PANEL CONTROLS AND FUNCTIONS

Fig. 1

1. POWER

Main switch with ON light indicator.

2. MASTER

Master volume control.

3. TREBLE

High tone control

TREBLE tone control carries out an +/- 10 dB intervention in the high frequency range, allowing a correct equalization of the reproduced signal.

4. BASS

Bass tone control

BASS tone control carries out an +/- 10 dB intervention in the spectrum of low frequencies, allowing a correct equalization of the reproduced signal.

5. INPUT 1 ÷ INPUT 4

Input level control from 1 to 4.

6. AUX

AUX input level control.

7. AUX input selector

Pressing the A/B/C buttons respectively enables the AUX A, B and C inputs (fig.2, ref.4). The enabled input is shown by the lit led.

Note: Enabled inputs will be mixed to the output

8. 1U 19" rack adapters

Included.

4. REAR PANEL FUNCTIONS AND CONTROLS

Fig. 2

1. NETWORK POWER SUPPLY INPUT with fuse housing

Connect the unit to the mains Power Supply 230/117V\~ 50/60Hz.

FUSE

100÷240 V\~ 50/60Hz Fuse: T2AL AC250V.

2. INPUT 1 ÷ INPUT 4

Balanced/unbalanced input on "Euroblock" connector.

fig.3

The INPUT1, INPUT2, INPUT3 e INPUT4 inputs are of balanced/unbalanced type, used for the connection of low impedance dynamic microphones (30-600Ω), condenser microphones with 48V phantom power supply and audio sources with "line" level signal output (e.g. AM/FM tuner, cassette player, CD player, etc.).

a) Connection of a Balanced line to the INPUT (fig.3, ref.a)

Connection of a Unbalanced line to the INPUT (fig.3, ref.a)

b) Use the selectors to choose the source type to connect (fig.3 ref.a):

LINE for AM/FM tuners, CD players etc.

PH for condenser microphones with +48V phantom power

MIC for dynamic microphones

c) "Dry Contact"

Each input has a "Dry Contact" that has the functions "Chime Activation" and "Force Input Muting". These functions can also be activated simultaneously and are subjected to the (ON - OFF) position of the dip switch (fig.2, ref.6 e 7):

"Chime Activation"

The amplifier will play an alert sound from the loudspeakers line when the contact is closed (fig.3 ref.C) with the relative dip-switch PIN ON (fig.2 rif.7).

"Force Input Muting"

The control forces the muting of AUX inputs and other inputs (fig.2, ref.2) with the relative VOX PIN (fig.2, ref.6) OFF when the contact is closed (fig.3 ref.C). Inputs will remain mute while the dry contact remains closed. This function is particularly useful with very weak audio signals, which may cause constant connections/disconnections of the VOX function, resulting in alternating the signal output.

Note: the dry contact will not mute the inputs that have VOX ON.

Each INPUT 1 ÷ INPUT 4 has a VOX function that can be switched on and off using the PIN (fig.2, ref.6): while the VOX circuit of one of the channels with VOX ON (enabled) detects the presence of an audio signal on the relative input (fig.2, ref.2), the AUX channels (fig.2, ref.3) and the channels with VOX OFF (disabled) will be muted, while all the channels with VOX ON will be mixed in the output.

3. AUX IN

The device has 3 AUX inputs that can be selected from the front panel (fig.1 ref.7):

The R and L sockets allow to connect the right (R) and left (L) channels through RCA connectors. You can connect to this stereo input an external sound source.

4. REC OUT

Unbalanced output line to be used for recording functions.

5. Input AMP IN - Output PRE OUT

graph LR
    A["PROCESSOR"] --> B["PRE OUT"]
    A --> C["AMP IN"]

As a standard the AMP IN input is connected to the PRE OUT output with a jumper.

You can optimise the amplifying signal inserting an external unit (e.g. equaliser, processor, etc.) between the two terminals. For the connection check the drawing.

6. VOX PRIORITY ENABLING and MIC PRIORITY

Vox Priority Enabling enables the VOX function on the relative INPUT 1 ÷ INPUT 4 inputs:

Examples:

ON-ON-ON-ON - Vox enabled on all inputs

ON-OFF-ON-OFF - Vox enabled on the 1 - 3 inputs and disabled on the 2 - 4 inputs

......

OFF-OFF-OFF-OFF - Vox disabled on all inputs

VOX operation

Each INPUT 1 ÷ INPUT 4 has a VOX function that can be switched on and off using the relative PIN (Vox Priority Enabling): when the VOX circuit of one of the channels with VOX ON (enabled) detects the presence of an audio signal on the relative input (fig.2, ref.2), the AUX channels (fig.2, ref.3) and the channels with VOX OFF (disabled) will be muted, while all the channels with VOX ON will be mixed in the output.

MIC PRIORITY

MIC PRIORITY function causes a signal present on the channels (INPUT 1 ÷ INPUT 4) with VOX active to reduce the level of all other inputs (AUX and INPUT with VOX OFF) of a value adjustable at will using the MIC PRIORITY trimmer

Note:

Adjusting the trimmer to Minimum (to the left), the AUX and with VOX OFF channels will be completely muted.

Adjusting the trimmer to Maximum (to the right) the Priority function will be bypassed and all the channels will be always active.

7. CHIME ROUTING and CHIME LEVEL

Chime Routing enables the Chime function on the relative INPUT 1 ÷ INPUT 4 inputs:

Examples:

ON-ON-ON-ON - CHIME enabled on all inputs

ON-OFF-ON-OFF - CHIME enabled on the 1 - 3 inputs and disabled on the 2 - 4 inputs

······

OFF-OFF-OFF-OFF - CHIME disabled on all inputs

The amplifier will play an alert sound from the loudspeakers line when the relative contact is closed (fig.3 ref.C) when CHIME is enabled on an input.

8. BAL OUTPUT

Balanced linking output with line level.

Use this output to send the AMP160XL input signal to another amplifier.

Note:

Balanced connection

Unbalanced connection

9. LOUDSPEAKERS OUTPUT

The device allows the connection of constant impedance speakers (4Ω) or constant voltage speakers at (70/100V). It is not possible to connect them mixed.

5. LOUDSPEAKER CONNECTION

Attention

To avoid the risk of electric shocks, never touch the amplifier outputs when they are operating.

The device can be used with loudspeakers having constant impedance (4Ω) as well as constant voltage (70V, 100V). Keep the following instructions in mind when carrying out connections.

Constant impedance line:

Connect the constant impedance line (4Ω) between the "COM" and "4Ω" terminals (Fig. 2, Ref. 4).

√ To ensure maximum performance, total impedance of the loudspeakers connected to the line must be equivalent to the output impedance of the amplifier.
√ The total power of the diffusers must not be less than the output power of the amplifier.
√ It is advisable to minimise the length of connection, and anyhow increase the cable section according to the distance covered.

Constant voltage line:

Connection to 100V or 70V

MAX. 160W

MAX. 160W

Connect the constant voltage line (100V or 70V) between the "COM" and "100V" (or "70V") terminals (Fig. 2, Ref. 4).

√ The loudspeakers must be supplied with a transformer having an input voltage equivalent to that of the amplifier.
√ The total power of the loudspeakers must not exceed the maximum output power of the amplifier.

6. EXAMPLES OF POSSIBLE CONNECTIONS

graph TD
    A["PC Audio Out"] --> B["AMP160XL"]
    B --> C["AUP160D"]
    C --> D["Mars"]
    C --> E["Main"]
    C --> F["Radio/Microphones"]
    C --> G["Microphones"]
    C --> H["Radiomicrophones"]

7. TECHNICAL SPECIFICATIONS

Model:	AMP160XL
Output power RMS 160W
Inputs	4xMIC/LINE balanced3 AUX (selectable)1x MAIN IN (normally connected to PRE OUT)
Input Sensitivity	MIC: -40dBV / 600 Ω balanced (with 48Vphantom)LINE: 0dBV / 100 KΩ balancedAUX: 0dBV / 47 KΩ unbalancedMAIN IN: 0dBV / 10KΩ unbalanced
Signal Output	PRE OUT (normally connected to MAIN IN)PRE OUT: 1V / 600 ΩREC OUT: 1V / 600 ΩBAL OUTPUT:1V / 600 Ω
Controls	MASTER VOLUME CONTROL1 TREBLE TONE CONTROL1 BASS TONE CONTROL4 MIC/LINE VOLUME CONTROLS1 AUX VOLUME CONTROL
Loudspeakers outputs 100/70V/4Ω
Frequency response	80Hz -16KHz (-3dB)
Distortion (THD)	< 0.5% (@ Pnom 1KHz)
S/N Ratio	MIC: ≥70dBLINE: ≥70dBAUX: ≥80dB
Power Supply	autoswitch 100-240V~ 50/60Hz
Operating temperature	0 -40°C
Input/Output Connectors	terminal blockRCA
Power Consumption	160VA
Dimensions (LxHxP) (mm)	439 x 44 x 278 mm483 x 44 x 278 mm - 1U rack19"
Weight (Kg)	5 Kg

8. CONTENTS OF THE PACKAGE

Amplifier

Rack adapters

Network power supply cable

Operating Manual

Proel SpA is committed to a constant research and development policy and therefore reserves the right to change and improve its products at any time without notice. REV.00 19/17

PROEL S.p.A.

(World Headquarters - Factory)