This Gain Audio AMP-4840 40 Watt Audio Amplifier with Microphone Mixer is a compact, economical and energy efficient (Class D) mono / stereo audio amplifier with 3 inputs (2 line in and 1 balanced microphone).
The AMP-4840 is a compact, economical and energy efficient (Class D) mono / stereo audio amplifier with 3 inputs (2 line in and 1 balanced microphone).
Versatile design is compatible with dynamic, condenser or wireless microphones with fully adjustable control options including RS-232, IR, and front panel buttons.
Functions include bridge connection, dual-mono, EQ control, and microphone mixer.
The AMP-4840 is perfect for classrooms, meeting rooms, boardrooms, sports bars, and more.
Gain Audio AMP-4840 40 Watt Audio Amplifier with Microphone Mixer Feature:
- Drives: 2x 20w @ 4 Ohms or 2x 10w @ 8 Ohm or 1x 40w @ 8 Ohms in bridge mode
- Two stereo audio inputs, switchable by button, IR remote & RS-232
- Volume / Bass / Treble controllable by buttons, IR remote & RS-232
- MIC port supports balanced or unbalanced signals
- 3.5mm jack line audio output with controllable volume
- Mono mix switch for summing left and right channels for driving mono outputs
- Microphone input can be mixed with line input, and each can be controlled separately
- MIC input supports 48V phantom power, dynamic MIC and wireless MIC
- Auto noise squelch. Detects audio on inputs and mutes the output when there is no input
- Does not have fans
Why not buy this Gain Audio AMP-4840 40 Watt Audio Amplifier with Microphone Mixer from HDTV Supply today?
Gain Audio AMP-4840 40 Watt Audio Amplifier with Microphone Mixer Specifications:
- Audio Performance
- Rated Output: 2 x 20 W @ 4 ohms or 2 x 10 W @ 8 ohms
- Gain: 32 dB
- Frequency Range: 20 Hz to 20 kHz
- Signal-to-Noise Ratio: 80 dB (at maximum output)
- Total Harmonic Distortion: 20 Hz to 20 kHz
- Input Impedance: > 10 kOhm
- Output Impedance:
- 3.5 mm Loop Out: 50 ohms
- Speaker Out: 4–8 ohms
- Channel Separation: >75 dB from 20 Hz to 20 kHz
- CMRR: >70 dB from 20 Hz to 20 kHz
- Operating Environment
- Operating Temperature: 0°C to 40°C (32°F to 104°F)
- Humidity: 20% to 90%, non-condensing
- Dimensions
- Model: 3.78" W x 3.43" D x 1.5" H (96 x 87 x 38 mm)
- Power
- Maximum Consumption: 40 W
- Idle Consumption: 4 W
- Power Supply Input: 100–240 VAC, 47–63 Hz
- Power Supply Output: 24 VDC / 5 A
- Weight
- Model: 0.66 lbs (0.3 kg)
- Shipping: 1.95 lbs (0.88 kg)
- Certifications
- Unit: CE, FCC, RoHS
- Power Supply: cULus
Why not buy this Gain Audio AMP-4840 40 Watt Audio Amplifier with Microphone Mixer from HDTV Supply today?
Gain Audio AMP-4840 User Manual
Gain Audio AMP-4840 User Manual
Why not buy this Gain Audio AMP-4840 40 Watt Audio Amplifier with Microphone Mixer from HDTV Supply today?
What is the Gain Audio AMP-4840?
A: It is a compact Class D audio amplifier with two stereo line inputs and one balanced microphone input.
It combines amplification, microphone mixing, EQ, and remote control for small commercial AV systems.
What output power does it provide?
A: It delivers 2 x 20W at 4 ohms, 2 x 10W at 8 ohms, or 1 x 40W at 8 ohms in bridge mode.
The selectable output arrangements allow the amplifier to match different speaker configurations.
How many inputs does it have?
A: It provides two stereo line inputs and one microphone input.
The microphone channel can be mixed with program audio for presentation and conferencing applications.
Does it support phantom power?
A: Yes, the microphone input supports 48V phantom power as well as dynamic and wireless microphones.
This allows the amplifier to work with different microphone types in professional AV installations.
Can it mix microphone and line audio?
A: Yes, the microphone can be mixed with line audio and the sources can be controlled separately.
This is useful when speech must remain intelligible over presentation or background audio.
Does it support bridge mode?
A: Yes, bridge mode provides up to 40W into an 8-ohm load.
Bridge mode is useful when one higher-power speaker channel is required instead of two independent outputs.
Can it be remotely controlled?
A: Yes, volume and tone functions can be controlled from the front panel, IR remote, and RS-232.
Remote control makes it suitable for integrated room-control systems.
Does it provide mono mixing?
A: Yes, a mono-mix function can sum left and right program channels for mono output.
This is useful for distributed speaker systems where a single mono program is preferred.
Is it fanless?
A: Yes, the amplifier uses a fanless design.
The absence of a cooling fan helps minimize mechanical noise in classrooms and meeting rooms.
Where is it used?
A: It is suitable for classrooms, meeting rooms, boardrooms, sports bars, and similar commercial AV spaces.
Its compact form and flexible audio routing make it useful for small integrated sound systems.
