Product Questions? Ask Our Experts! 888.230.3661 sales@creationnetworks.net Contact us today for your best package pricing and product availability.

Biamp Commercial PM4100 Half-rack stereo pre-amplifier/mixer with 4 inputs - 911.1888.900

Regular price $550.00
Shipping calculated at checkout.
Biamp  |  SKU: 911.1888.900

Shipping Availability*

Free Ground Shipping on Most Orders Over $250.00

Looking for the best price or expert advice? Give us a call at 1-888-230-3661 or use the Live Chat below. Buying 1 or 100, you may qualify for greater savings beyond the advertised price.

Accepted payment methods

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.

NATIONWIDE AV SERVICES

Nationwide Audiovisual Services, Design, Installation & Support

Creation Networks is a trusted nationwide partner for complete audiovisual solutions — delivering expert AV system sales, professional design, programming, installation, and ongoing support to organizations across the United States.

From Microsoft Teams Rooms and enterprise video conferencing to LED video walls, live streaming production, and hybrid collaboration systems, we provide end-to-end AV integration using premium, certified technology from industry leaders including Crestron, Q-SYS, Shure, Extron, and Absen.

Whether you operate a single location or manage facilities nationwide, Creation Networks ensures your AV systems are designed for reliability, scalability, security, and long-term performance — helping your organization communicate more effectively and operate at peak efficiency.

CREATION NETWORKS — A PARTNER YOU CAN TRUST SINCE 2006