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Monolith by M3100X 3x90 Watts Per Channel Multi-Channel Home Theater Power Amplifier with RCA & XLR Inputs

Name: Monoprice | Monolith by M3100X 3x90 Watts Per Channel Multi-Channel Home Theater Power Amplifier with RCA & XLR Inputs | Realry
Brand: Monoprice
SKU: 65f4138fe9e7b1c2450b7244
Price: 449.99 USD
Availability: InStock

From. Monoprice

$449

.99 US

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Product Information

Product Code

143864

Last checked

Jul 15, 2025

Monolith™ by Monoprice™

M3100X Multi‑Channel Home Theater Power Amplifier

3x90 Watts Per Channel with RCA & XLR Inputs

The Monolith™ M3100X features high quality, class AB amplification and is the perfect amplifier to upgrade your amps in a receiver, handle height/effects channels in a larger system, or to be the backbone of a home theater system in smaller rooms. The M3100 is a three‑channel power amplifier that delivers 90 watts per channel into 8 Ohms (all channels driven) with less than 0.02% THD and a signal to noise ratio greater than ‑100dB. Hook up is a breeze by utilizing either the unbalanced RCA inputs or unbalanced XLR inputs make it easy to connect to any receiver or pre/pro. The Monolith M3100 multi‑channel amplifier combines power and performance to deliver high quality music or home theater sound quality in any application.

3 Channels of Amplification
90 Watts Per Channel into 8 ohms
Unbalanced RCA Inputs

XLR Inputs
3RU Height
Class AB Amplification

3 CHANNELS OF CLASS AB AMPLIFICATION

UNBALANCED RCA INPUTS AND UNBALANCED XLR INPUTS

3 Year Replacement Warranty

Monoprice™ not only stands behind this product with a 3 year replacement warranty, we offer a 45 day money back guarantee as well! If the product you purchase does not satisfy your needs, send it back for a full refund.

45 Day Money Back Guarantee

Monoprice stands behind the Monolith line of products we sell with a 45 day money back guarantee! If the product you purchase does not satisfy your needs, send it back for a full refund.

Shipping & Returns Policy

Free Shipping
DHL or FedEx
3-5 business days

Your order will be shipped to you directly by Monoprice

Returns Policy

Feel free to initiate the return of your purchased item via cs@realry.com.
Our CS team will be happy to assist you throughout the entire process.

Return Period: You have up to 7 days for returns. But return period might be different depending an item you purchase. So please be advised from cs@realry.com

Cost: The customer is accountable for covering all shipping expenses.

Method: Please use the mail service for returns.

See more details on Monoprice >
Since we partner with retailers worldwide, each retailer has its own unique return policy - These policies may differ based on the item you purchase

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