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Pair of black powered desktop speakers with ribbon tweeters and 5.25in woofers

Monoprice Inc.

Monoprice Inc. Monolith MM-5R 138620 Powered Home Audio Speakers (Pair) Black

SKU CH-AA2H-RHWQE

Powered desktop speakers with 100 W per channel, AMT ribbon tweeter, 5.25 in woofer, Bluetooth 5 aptX HD, optical and USB inputs plus subwoofer output

  • Product typeHome Theater Speaker System
  • Key featuresAudiophile grade sound. Attractive, compact and big sound. D
  • Audiophile-grade clarity from AMT ribbon tweeter and 5.25in woofer
  • 100 watts per speaker Class AB bi-amplification delivers spacious, punchy sound
  • Bluetooth 5 with aptX HD enables high-resolution wireless streaming
  • Multiple digital and analog inputs plus front headphone jack for versatile connectivity
  • Rear bass port extends low-frequency response down to 42Hz

Compact Powered Speakers with AMT Ribbon Tweeter

The Monolith MM-5R is a pair of powered multimedia speakers built for desktop and near-field listening. Each enclosure houses a 100-watt Class AB bi-amplification system driving a 5.25in polypropylene woofer and an AMT ribbon tweeter. A slotted rear bass port extends low-frequency response down to 42Hz for punchy bass from a small footprint.

Ideal for Desktop Audio; Not for Large Rooms

These speakers suit home offices, bedrooms and compact workstations where high-resolution sound and multiple wired inputs are needed. Buyers who need wireless multi-room streaming, voice-assistant integration or room-filling output for a living-room setup should look at other solutions.

100-Watt Class AB Bi-Amplification per Speaker

The defining specification is 100 watts per channel of Class AB bi-amplification, which directly determines the system's dynamic headroom and ability to drive the AMT ribbon tweeter and 5.25in woofer to reference levels in near-field use.

How it compares

Measured against everything we stock in Home Speakers & Subwoofers, at today’s prices. Recalculated every night.

Price $392.99
Pricier than about 81% of the 1,147 comparable items (median $133.99).

Specifications

Product
Brand nameMonoprice
Model name138620
Part number138620
Product typeHome Theater Speaker System

Questions about this item

How do I connect the Monolith MM-5R speakers to my computer using the USB DAC input?

Connect the supplied USB cable from your computer to the USB digital input on the master speaker, then link the second speaker with the included speaker wire. Ensure the master speaker is powered on and selected as the audio output device.

What maintenance will the AMT ribbon tweeter and 5.25in polypropylene woofer need over time?

No routine maintenance is required for the AMT ribbon tweeter or 5.25in polypropylene woofer. Keep the speaker grilles dust-free and avoid exposing the drivers to moisture or physical contact.

At what volume level does the 100 watts per speaker Class AB bi-amplification system hit its thermal limit?

The 100 watts per speaker Class AB bi-amplification system includes thermal protection that engages before damage occurs. Sustained high-output use will trigger automatic limiting to protect the amplifier modules.

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