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Reviews For: Rolls MA252 Mixer Amplifier

Category: Audio Accessories for Transmitter & Receiver

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Review Summary For : Rolls MA252 Mixer Amplifier
Reviews: 2MSRP: 160
Description:
Basic Stereo Audio Amplifier, 4 inputs, 20 watts
Product is in production
More Info: http://www.rolls.com/product.php?pid=MA252
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
0025
AF3K Rating: 2022-11-04
Compact way to mix audio from multiple radios Time Owned: more than 12 months.
(This review is for the MA255, which is nearly identical to the MA252. Both have four inputs, and both have amplified outputs for one set of stereo speakers as well as one line level out. The MA252 has an XLR input whereas the MA255 has an extra set of stereo RCA inputs and no XLR)

I use the MA255 to share a set of Palstar SP30 speakers with audio coming from a 1) Flex transceiver (stereo), 2) an Icom transceiver (stereo), 3) a Winkeyer WKUSB-AF (Mono) and 4) a PC (stereo). The volume of each device is adjusted with a dedicated knob on the MA255. There is no need to switch between the sources as the audio from all four is mixed together. If I don't want to hear a particular rig, I just turn its volume on the MA255 to zero.

I have limited desk space in my shack so the compact size and integrated audio amp in the MA255 was a good solution for me. I also wasn't trying to also share microphones, PTT and CW paddles. The only negatives I can think of are: a) it uses a 24v wall wart. I would prefer to wire it into the shack's 12v supply using powerpoles. b) I wish it had more inputs so I could add VHF radios etc.!

I'm still using the MA-255 in my shack two years after purchase, and very satisfied. I'd recommend it highly if you are looking for a simple way to share audio from multiple rigs with unpowered speakers.
KA4KOE Rating: 2016-08-08
Does the job Time Owned: 0 to 3 months.
If you find that RF gets into your PC style powered speakers, then this little gem may be the solution. High quality construction and it runs off 24 VDC. This unit is frequently used in small professional AV system installs.

I have line audio inputs from my Flex 6000 series and my computer. Most PC speakers only have one input for audio.

I run the output of the mixer/amp to a pair of second hand Bose 101 speakers hung on my shack wall flanking the main PC monitor. With 4 inputs, the '252 can take inputs from several radios in small to medium sized shacks.

I purchased mine from Markertek, who offers free shipping on all their purchases.