This Hall Technologies (Formerly Hall Research) AMP-4840 40 Watt Audio Amplifier with Microphone Mixer and RS-232 Control is a compact, economical and energy efficient (Class D) mono / stereo audio amplifier with 3 inputs (2 line in and 1 balanced mic). 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.
It is designed to drive one or two speakers, but is capable of driving 4 speakers in parallel mode as shown below. In the below configuration each 8 ohm speaker will be able to deliver up to 10 watts of power for a total of 40 watts.
Hall Technologies AMP-4840 40 Watt Audio Amplifier with Microphone Mixer and RS-232 Control Features:
- Drives: 2x 20w @ 4Ω or 2x 10w @ 8Ω or 1x 40w @ 8Ω 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 Hall Technologies AMP-4840 40 Watt Audio Amplifier with Microphone Mixer and RS-232 Control today?
Hall Technologies AMP-4840 40 Watt Audio Amplifier with Microphone Mixer and RS-232 Control Specifications
| Rated Output | 2 x 20 w @ 4 or 2 x 10 w @ 8 |
| Gain | 32 dB |
| Frequency Range | 20 Hz to 20Khz |
| Signal/Noise Ratio | 20Hz to 20KHz |
| Total Harmonic Distortion | 80dB (at max output) |
| Input Impedance | > 10 Kohm |
| Output Impedance | 3.5 mm Loop Out: 50 ohm Speaker Out: 4-8 ohm - Amplified |
| Stereo Channel Separation | >75 dB from 20 Hz to 20 KHz |
| CMRR | >70 dB from 20 Hz to 20 KHz |
| Operating Temperature | 0°C to 40°C (32°F to 104) |
| Humidity | 20 to 90% non-condensing |
| Power | Max Consumption: 40 watts Idle Consumption: 4 watts |
| Power Supply | Input: 100 VAC to 240 VAC, 47-63 Hz Output 24 VDC / 5A |
| Dimension | Model: 3.78" (96 mm) W x 3.43" (87 mm) D x 1.5" (38 mm) H |
| 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 Hall Technologies AMP-4840 40 Watt Audio Amplifier with Microphone Mixer and RS-232 Control today?
Hall Technologies AMP-4840 User Manual
