Roemtech PMA-350H+ Classroom Audio Mixer and Amplifier
Classroom Instructor Icon

Classroom Audio systems

Classroom audio systems and the amplifiers that power them require unique features. Roemtech has developed all of its amplifiers with the classroom in mind. Users want an audio system that delivers clear and intelligible audio without sacrificing the quality or durability of the amplifier. At the same time, an audio system for the classroom needs to be cost effective. Roemtech manufactures a variety of classroom audio systems from which to choose. From basic systems that fit a tight budget to systems that produce the finest audio quality, Roemtech has the solution.

Plenum Rated Icon

Plenum Rated amplifiers

Plenum rated amplifiers are the perfect solution when installing sound systems in small spaces. The plenum rating allows for the amplifier to be installed above the ceiling where tampering and theft are greatly reduced. Additionally, connections and cables are less likely to be disturbed. Most amplifiers offered by Roemtech are plenum rated (except the DMA-355H) and have been built with extra durable components that are especially designed to work in high temperature environments. Roemtech sets the standard for plenum rated amplifiers!

Conference Room Audio Icon

conference room audio Systems

Conference room sound systems need to make a great impression on the audience and drive home the message. Roemtech keeps in mind the demanding needs of conference room sound systems. Sound systems used in a conference room environment need to deliver rich and crisp sound for maximum impact. Roemtech’s conference room sound systems provide audio reinforcement for video conferencing, projector audio or teaching with a microphone. For more information please visit the contact page.

Classroom Audio Amplifier, Roemtech's PMA-350H+, Plenum Rated Mixer and Amplifier with 3 inputs


Learn More

classroom audio
systems Made easy.

When it comes to features and performance in a mini amplifier, the PMA-350H+ is at the top of its class.

  • Plenum rated
  • Patented Auto HummBuster noise eliminator
  • Three mixable audio inputs
  • 50 Watts of efficient class D power
  • PA auto-muting and passthrough
  • Made in the USA
  • 5 Year Warranty

Small amps
for every application

Whether you have a classroom, conference room or office that needs better audio, Roemtech has a solution for you.

Learn More
Roemtech PMA-245H+ Mixer Classroom Audio Amplifier, Plenum Rated
45 Watts, 2 Inputs, HummBuster Technology
Roemtech DMA-355H Digital Optical Audio Amplifier for Classrooms and Conference Rooms
55 Watts, 3 Inputs, Optical, Line, Mic, IR programable
Roemtech Q55 70V Mixer Classroom Audio Amplifier
Q55 70V
55 Watts, 70V, 2 Inputs, HummBuster Technology
White 40 Watt,Classroom Audio Wall Speakers, Front anf Back, Pair, 8 Ohms and 70V taps
5.25" Composite Woofer
1.0" Titanium Domed Tweeter


Amazing sound

The SP-250 series of speakers are designed to maximize speech intelligibility while at the same time deliver accurate, full spectrum audio. They are perfectly matched to work with all of Roemtech's amplifiers.
They are a great fit for any classroom, conference room, restaurant or other small to medium sized venue.

Learn More


Fast - easy - affordable



Magnetic mounting bracket for electronics.Learn More

Volume control


Wall volume control for classroom audio systems.  Specifically for the  PMA-350H+.Learn More



HummBuster or Hum Bucker for ground loop noise issues.Learn More