C2G 40881 50W 80hm & 70V Audio Amplifiers User Manual

C2G 40881 50W 80hm & 70V Audio Amplifiers

Package Contents

• 50W Audio Amplifier
• AC Adapter
• AC Power Cord
• Mounting Ears (desk or wall mount) x2 9-pin Captive Screw Plug x2
• User Manual

DEVICE INSTALLATION

Typical connection through Projector

OPTION A

Typical audio connection direct to amplifier

OPTION B

Ground Loop Filter

Where there are two or more devices connected there may be a noise generated. Turn the switch on the GLF button to the On position to eliminate the 50/ 60Hz noise.

Input Control and Volume Setup

Note: For Option A Wiring, start with Step 1. For Option B Wiring, start with Step 2. (Diagram on Page 3)

• Step 1: Using 3.5mm or RCA Stereo Audio cables connect the audio source to the audio input on the Amplifier.

• Step 2: Using the wires from the speakers, connect each speaker to the correspond­ing pin location on the captive screw plug on the Amp (see pin diagram on page 7).
  Note: Captive screw plug diagram for the 70v or 25v on page 8.

• Step 3: Connecting the External Volume Control When wiring the 1 0V, Volume/Mute, and Ground outputs, strip off the insulation from the external volume control wire by 3/16″. Make sure the wire ends do not touch. Keep exposed wire ends short after stripping, if the wires touch, it may short the amp. Insert all 3 pins from the external volume control into the corresponding pin location on the captive screw plug. {see diagram on page 9)

• Step 4: For PA Systems, see the wiring diagram on page 10.

• Step 5: Insert the captive screw plug on the back of the amplifier.

• Step 6: After all connections have been made, connect the power supply to the amplifier and the power cable to an available wall outlet.
  Note: The wire with the white stripe is positive. Connect it to the positive input on the amplifier.

40880 only

STEREO

Amplifier output

two speakers

Amplifier output

four speakers (Two 8 ohm speakers wired in parallel equal a 4 ohm load)

MONO

Amplifier output

one speaker

Amplifier output

two speakers (Two 8 ohm speakers wired in parallel equal a 4 ohm load)

Recommended External Volume control connection

External volume control

Microphone Volume Control Setup

• Step 1: Turn the Mic In volume knob down (counter-clockwise) to the “Min” position.
• Step 2: Connect a Microphone to the Amp Input.
• Step 3: Ensure that the Microphone is turned on, and begin to adjust the Mic In volume knob. Turn clockwise until the desired sound level is reached.
• Step 4: Test feedback by moving around the room and speaking into the mic, if there is any feedback, turn the Mic In control knob down (counter-clockwise) until the feedback is gone.

DEVICE OPERATION

• RS-232 Hexadecimal String Baud Rate: 9600
• Parity Bit: None
• Data Bit: 8
• Stop Bit: 1

Function

| RO123 Receiver Commend
---|---
 |
Power ON| Power: ON| l50 6F 77 65 72 3A 4F 4E| OD
Power OFF| Power: OFF| 50 6F 77 65 72 3A 4F 46 46| OD
Power Toggle| Power: TOGGLE| 150 6F 77 65 72 3A 54 4F 47 47 4C 45| OD
Power Query| Power:?| 50 6F 77 65 72 3A 3F| OD
Mute ON| Mute:ON| 14D 75 74 64 3A 4F 4E| OD
Mute OFF| Mute: OFF| 14D 75 74 65 3A 4F 46 46| OD
Mute Toggle| Mute: TOGGLE| l4D 75 74 65 3A 54 4F 47 47 4C 45| OD
Mute Query| Mute:?| 14D 75 74 65 3A3F| OD
r,tolume Number| Volume: 00~20| l56 6F 6C 75 6D 65 3A| OD
r,tolume UP| Volume: UP| 56 6F 6C 75 6D 65 3A 55 50| OD
r,tolumeDOWN| Volume: DOWN| 156 6F 6C 75 6D 65 3A 44 4F 57 4E| OD
r,tolume Query| Volume:?| 56 6F 6C 75 6D 65 3A 3F| OD
‘3ain 3.5mm Number| Gain: AUX: 00~06| 147 61 69 6E 3A 41 55 58 3A| OD
K,ain 3.5mm UP| Gain: AUX:UP| 147 61 69 6E 3A 41 55 58 3A 55 50| OD
Gain 3.5mm DOWN| Gain:AUX:DOWN| 147 61 69 6E 3A 41 55 58 3A 44 4F 57 4E| OD
K:;ain 3.5mm Query| Gain:AUX:?| 147 61 69 6E 3A 41 55 58 3A 3F| OD
ain RCA Number| Gain:RCA:00~06| 147 61 69 6E 3A 52 43 41 3A| OD
Gain RCA UP| Gain:RCA:UP| 147 61 69 6E 3A 52 43 41 3A 55 50| OD
K,ain RCA DOWN| Gain:RCA:DOWN| 147 61 69 6E 3A 52 43 41 3A 44 4F 57 4E| OD
ain RCA Query| GAIN:RCA:?| l47 61 69 6E 3A 52 43 41 3A 3F| OD
Gain MIC Number| Gain:MIC:00~06| 147 61 69 6E 3A 4D 49 43 3A| OD
K,ain MIC UP| Gain:MIC:UP| 147 61 69 6E 3A 4D 49 43 3A 55 50| OD
Gain MIC Down| Gain:MIC:DOWN| 147 61 69 6E 3A 4D 49 43 3A 44 4F 57 4E| OD
K,ain MIC Query| Gain:MIC:?| 147 61 69 6E 3A 4D 49 43 3A 3F| OD

Function

| R0l 23 Return Command
---|---
 |
Power ON| Power: ON| 50 6F 77 65 72 3A 4F 4E| OD
ower OFF| Power: OFF| 50 6F 77 65 72 3A 4F 46 46| OD
Mute ON| Mute:ON| 4D 75 74 65 3A 4F 4E| OD
Mute OFF| Mute: OFF| 4D 75 74 65 3A 4F 46 46| OD
Volume Number| r,tolume:00~20| ,6 6F 6C 75 6D 65 3A| OD
Gain 3.5mm Number| K,ain:AUX:00~06| 47 61 69 6E 3A 41 55 58 3A| OD
Gain RCA Number| ain:RCA:00~06| 47 61 69 6E 3A 52 43 41 3A| OD
Gain MIC Number| Gain:MIC:00~06| 47 61 69 6E 3A 4D 49 43 3A| OD

DEVICE SPECIFICATIONS

40880

Audio Inputs| RCA Stereo Audio, line level, unbalanced

3.5mm Stereo Audio, line level, unbalanced

3.5mm Stereo, microphone

input, balanced/unbalanced

Impedance| >18KΩ unbalanced
Frequency Response| 20Hz to 20 KHz(+1dB -3dB)
THD + Noise| < ±0.05%@ 1 KHz at nominal level (1 watt)
Signal/Noise| >80dB
Input Sensitivity| -lOdBV (316mV)
Audio Output| Phoenix standard connector
Amplifier Type| Class D
Output Power| Mono-50 watt± 3 watt at 1KHz, 4ohm load

Stereo- 25watt + 25watt ± 3wattat lKHz

15+15 W, 8 ohm load

External Power Supply| 1OOVAC to 240VAC
Enclosure Type| Metal
Approvals| RoHS2, FCC, UL, Plenum
Dimensions (H x W x D)| 1.49 X 4.3] X 4.54″
Weight| lib
40881

Audio Inputs| RCA Stereo Audio, line level, unbalanced

3.5mm Stereo Audio, line level, unbalanced

3.5mm Stereo, microphone

input, balanced/unbalanced

Impedance| >18KΩ unbalanced
Frequency Response| 1OOHz ta 20 KHz(+1dB -5dB)
THD + Noise| < ±0.05%@ 1 KHz at nominal level (1 watt)
Signal/Noise| >80dB
Input Sensitivity| -lOdBV (316mV)
Audio Output| Phoenix standard connector
Amplifier Type| Class D
Output Power| 1 Single channel mono 70V±3V at 1KHz,70V, 50W, THD < 1%±0.5%

1 Single channel mono 25V±3V at 1KHz, 25V, 50W,

THD < 1%±0.5%

External Power Supply| 1OOVAC to 240VAC
Enclosure Type| Metal
Approvals| RoHS2, FCC, UL, Plenum
Dimensions (H x W x D)| J.49 X 4.3] X 4.54 “
Weight| 21bs

IMPORTANT SAFETY INFORMATION

• Do not plug the unit in any outlet that does not have enough current to allow the device to function. Refer to the specifications in this manual for power level of the unit.
• Liquid: If this unit or its corresponding power adapter has had liquid spilled on or in it, do not attempt to use the unit. Do not attempt to use this product in an outdoor environment as elements such as rain, snow, hail, etc. can damage the product.
• In case of a storm, it is recommended that you unplug this device from the outlet. Avoid placing this product next to objects that produce heat such as portable heaters, space heaters, or heating ducts.
• THERE ARE NO USER SERVICEABLE PARTS. Do not attempt to open this product and expose the internal circuitry. If you feel that the product is defective, unplug the unit and refer to the warranty information section of this manual.

C2G™ WARRANTY

At C2G, we want you to be totally confident in your purchase. That is why we offer a warranty on this device. If you experience problems due to workmanship or material defect for the duration of this warranty, we will repair or replace this device. To request a Return Merchandise Authorization (RMA) number, contact customer service at 800-506-9607 or www.c2g.com.

For more information on this product or to check for updated drivers, manuals or frequently asked questions please visit our website. www.c2g.com

FREQUENTLY ASKED QUESTIONS

What is the purpose of the C2G 40881 50W 80hm & 70V audio amplifier?

The C2G 40881 audio amplifier is designed to amplify audio signals for speakers and sound systems.

What is the power output of the C2G 40881 audio amplifier?

The C2G 40881 audio amplifier has a power output of 50 watts.

What is the impedance rating of the C2G 40881 audio amplifier?

The impedance rating of the C2G 40881 audio amplifier is 80 ohms.

Can the C2G 40881 audio amplifier handle 70V audio systems?

Yes, the C2G 40881 audio amplifier is compatible with 70V audio systems.

Is the C2G 40881 audio amplifier suitable for commercial audio installations?

Yes, the C2G 40881 audio amplifier is often used in commercial audio setups.

What are the input options for the C2G 40881 audio amplifier?

The C2G 40881 audio amplifier likely has various input options, such as RCA, XLR, or 1/4

Does the C2G 40881 audio amplifier have built-in volume controls?

Yes, the C2G 40881 audio amplifier may have built-in volume controls.

Can the C2G 40881 audio amplifier drive multiple speakers simultaneously?

Yes, the C2G 40881 audio amplifier can drive multiple speakers in parallel in a 70V audio system.

Is the C2G 40881 audio amplifier a Class-D amplifier?

The class of the C2G 40881 audio amplifier is not mentioned. It's best to check the product specifications.

What are the protection features of the C2G 40881 audio amplifier?

The C2G 40881 audio amplifier may have protection features like overload protection, short-circuit protection, etc.

Can the C2G 40881 audio amplifier be rack-mounted?

Yes, the C2G 40881 audio amplifier might be designed for rack-mounting in standard audio racks.

What is the power supply requirement for the C2G 40881 audio amplifier?

The power supply requirement for the C2G 40881 audio amplifier will likely be specified in the product manual.

What are the dimensions and weight of the C2G 40881 audio amplifier?

The dimensions and weight of the C2G 40881 audio amplifier can be found in the product specifications.

Is the C2G 40881 audio amplifier compatible with 4-ohm speakers?

The C2G 40881 audio amplifier is rated for 80 ohms, so it may not be the best match for 4-ohm speakers.

Can the C2G 40881 audio amplifier be used in a distributed audio system?

Yes, the C2G 40881 audio amplifier is suitable for use in distributed audio systems with 70V speakers.

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