Biamp Commercial PM4100 Half-rack stereo pre-amplifier/mixer with 4 inputs - 911.1888.900 is backordered and will ship as soon as it is back in stock.
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Product Overview
The Biamp Commercial PM4100 is a half-rack multi-functional stereo preamplifier controlled via the network or an RS-232 connection. It is equipped with four stereo inputs, four GPIO ports, and one stereo output, and integrates easily with a variety of control systems. A USB input enables direct audio connection and volume control from a computer, and the unit can be powered by PoE or 12V DC.
Product Description
The PM4100 provides four unbalanced stereo inputs and one balanced stereo output, with the option to mix Input 1 with the currently selected input. It includes a three-band equalizer for bass, mid, and treble control, two bidirectional RS-232 ports for third-party control with feedback, and four GPIO for relays, switches, and sensors. An auto standby mode helps manage power, and when powered by PoE (IEEE 802.3at Class 2, 7W) the 12V DC output can supply power to external devices such as control systems.
Key Features
- Four stereo inputs — The PM4100 provides four unbalanced stereo inputs and one balanced stereo output.
- Network and serial control — Two bidirectional RS-232 ports allow third-party control with feedback over network or serial.
- USB audio — A USB 2.0 Type-B input enables direct audio connection and volume control from a computer.
- Three-band EQ — A three-band equalizer provides bass, mid, and treble control.
- GPIO — Four GPIO ports support relays, switches, and sensors.
- Flexible power — The unit can be powered by PoE (802.3at Class 2, 7W) or 12V DC, with a 12V DC output for external devices.
- Five-year warranty — The PM4100 is covered by a 5-year warranty.
Typical Applications
The PM4100 suits conference rooms, huddle rooms, and multi-purpose rooms requiring a compact, controllable stereo preamplifier with USB audio.
Technical Specifications
| Inputs | 4 unbalanced stereo (RCA), input impedance < 100 kohm, max 2 Vrms |
| Output | 1 balanced stereo (5-pin Euroblock), 1.3 Vrms @ 0 dB FS |
| USB | USB 2.0 Type-B, 16-bit, 48 kHz |
| RS-232 | 2 bidirectional ports, 1200-115200 bit/sec |
| Logic I/O | 4 GPIO, open drain, max 24V DC / 0.5 A |
| Equalizer | Three-band (bass, mid, treble) |
| Network | RJ-45, 1 LAN port (CAT5e or better) |
| Power | 12V DC 5W; PoE IEEE 802.3at Class 2, 7W |
| Cooling | Convection |
| Dimensions (H x W x D) | 1.5 in (37 mm) x 8.6 in (218 mm) x 2.8 in (70 mm) |
| Weight | 1.1 lbs (0.5 kg) |
| Operating temperature | 32 - 86 deg F (0 - 30 deg C) |
| Certifications | FCC Part 15B, UL listed, CE marked, RoHS Directive |
| Warranty | 5-year warranty |
Frequently Asked Questions
How is the PM4100 controlled?
It can be controlled over the network or via RS-232, with two bidirectional RS-232 ports and four GPIO.
Can it accept USB audio from a computer?
Yes. A USB 2.0 Type-B input enables direct audio connection and volume control from a computer.
How is the PM4100 powered?
It can be powered by PoE (IEEE 802.3at Class 2, 7W) or 12V DC, and the 12V DC output can power external devices when on PoE.
Order the Commercial PM4100 and the full Biamp lineup at Creation Networks.
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- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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