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Old 30th December 2011, 03:03 PM   #1
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Default Inside the MUSE Audio M21 EX2

I was looking for a cheap T-Amp and found the MUSE M21 Ex2 (TA2021b) on Amazon at about 41 delivered without a PSU: Link
Couldn't find out much about them via from any impartial source but the photos of the internals looked good and the spec states:
- Japan made TOKO Fixed Inductors For Digital Audio Amplifier
- Original Japanese ALPS potentiometer
So i thought how bad could it be! It looks well made from the manufactures photos:
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It arrived yesterday and of course as any of us would, the first thing I did was take it apart..

I took some nice Hi-Rez photos of the internals; Check out the workmanship on this bewt'

Click the image to open in full size.

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This must be my ALPS pot :-)

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Click the image to open in full size.

And these must be my "Japan made TOKO Fixed Inductors" (I suppose they might be, one inductor looks much like another to me!)

Click the image to open in full size.

I love the jaunty angle they stuck the tiny Heat sink on at, and the way they nearly didnt miss any of the plate

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Click the image to open in full size.

I'll give it it's dues, the case is faily good construction, the binding posts arn't bad and the RCA's are solid.

It does sound pretty good, very musical, perhaps a bit 'brittle' at the top-end and my ears are possibly finding it harsh. but all round not bad.

Still I've been suckered! not sure what to do next!

Anyone know who makes that POT? and I'm guessing they are not TOKO inductors!

Last edited by JammyBStard; 30th December 2011 at 03:05 PM.
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Old 30th December 2011, 03:34 PM   #2
wwenze is offline wwenze  Singapore
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That picture that they give is the same as the one for M21 EX:

Wholesale MUSE M21 EX TA2021 T Amp Mini Stereo Amplifier 25WX2

I ordered a M21 EX but they "upgraded" it to M20 EX3, but I reckon they're all the same thing, just minor revisions here and there; they change the name so you cannot fault them for delivering something different from as promised.

Here's my M20 EX3:

wwenze's tech, audio and Anime rant page: Muse M20 EX3 TA2021 amp - a pictorial

About the POT, ALPS does make a model that looks like that. But whether the one in the Muse is authentic, no comment.
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Old 3rd January 2012, 11:22 AM   #3
Katch is offline Katch  United Kingdom
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I work with Alps pots a lot in DJ mixers and there's no way that's a genuine Alps product.
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Old 3rd January 2012, 11:34 AM   #4
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What did you expect for that price? Regards
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Old 19th January 2013, 02:17 PM   #5
gychang is offline gychang  United States
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Quote:
Originally Posted by wwenze View Post
Here's my M20 EX3:

wwenze's tech, audio and Anime rant page: Muse M20 EX3 TA2021 amp - a pictorial

About the POT, ALPS does make a model that looks like that. But whether the one in the Muse is authentic, no comment.
any comment regarding the sound?
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Old 19th January 2013, 03:08 PM   #6
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All things considered I'm very happy with it. I don't think you could get any better at that price.
certainly worth it.
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