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Customer Reviews

Rolls MB15b ProMatch

2-way XLR/RCA line-level converter

MFR # MB15B

Rolls MB15b ProMatch

Rolls MB15b ProMatch

2-way XLR/RCA line-level converter

MFR # MB15B

6 reviews
View this product

Rolls MB15b ProMatch

Crutchfield customer from Fayetteville, NC on 10/22/2020

Verified customer (What's this?)
Verified employee purchase (What's this?)

It works well for transferring the data from my sound mixer (Presonus) to my audio capture device for live streaming. The only issue that I have dealt with so far is that the audio from the Rolls MB15b ProMatch still has a little static in the line. It's not much and I can get much of it out with mixing.

Pros: Good price and works well.

Cons: Doesn't get all of the static out in my scenario.

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Rolls MB15b ProMatch

Philip from Easton, MD on 8/20/2020

Verified customer (What's this?)
Verified employee purchase (What's this?)

From a pure audio perspective, 3 stars. From a functional/utility/value perspective, 5 stars. If you want to hook up your RCA only or 3.5mm only device to a balanced input and not break the bank, this is the ticket. The bipolar input BA 4560 op amps are noisy, slew rate is OK for audio, and no high end parts, but it is a metal case and quite functional. Gain matching between left and right is subject to volume control matching and may be noticeable.

Pros: Works as advertised, metal case, good value.

Cons: Not a beauty, uses an external power supply, not very "Hi-Fi".

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Rolls MB15b ProMatch

Crutchfield customer from Flowery Branch, GA on 6/22/2020

Verified customer (What's this?)
Verified employee purchase (What's this?)

This unit allows me to hook up my band subwoofer gaining a preamp preamp signal from the MB15b (needed for pro audio) to go from an RCA output from the surround sound receiver then changing to an XLR output to connect to sub. Works great. Duane

Pros: works great as explained

Cons:

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Rolls MB15b ProMatch

Crutchfield customer from Rose Hill, KS on 6/10/2020

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Verified employee purchase (What's this?)

This made a huge difference in the overall sound of my system.

Pros:

Cons:

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0 of 0 found this helpful

no more hum

Crutchfield customer from Council Bluffs, IA on 2/16/2020

Verified customer (What's this?)
Verified employee purchase (What's this?)

works great no more hum in my subwoofer .

Pros: took care of my subwoofer hum issues and low cost

Cons: none

Crutchfield response on

1 of 1 found this helpful

XLR to rca connection (humming/noise) problem SOLVED.

Crutchfield customer from Henderson, NV on 10/29/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

I was having significant noise/humming when I attempted to insert a pro level EQ ( with XLR/TRS connectors to my home audio gear (with RCA connectors). I initially tried to solve the connection mismatch with XLR to rca cables. However, that resulted in much humming. When I added the Rolls MB15b into the connection PROBLEM SOLVED.

Pros: It works as described!

Cons: None

Crutchfield response on

1 of 1 found this helpful

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