General Information

CMoy made by JDS Labs with Bass Boost.

Standard Features

-Alps RK097 Volume Control and On/Off Switch
-Bass Boost Toggle Switch
-DC Auxiliary Power Jack
-Automatic On/Off (senses headphone cord)
-Texas Instruments OPA2227 Opamp in Gold-Plated DIP Socket
-Texas Instruments TLE2426 Precision Virtual Ground (2x optional)
-Decoupling Capacitors on All IC Supply Pins
-Custom 2-Layer PCB: Compact Layout with Ground Plane

Latest reviews

Pros: Extremely portable, reasonable price, great sound quality, long battery life, professionally assembled innards, great customer service
Cons: A mint tin is not an enclosure everyone likes, bass boost is a bit muddy, not 100% robust
For a small portable amp in a tin you can't do any better than the JDS LABS cmoy. Ok it's slightly more expensive then some of the competition but the circuitry is professionally assembled and the overall quality of parts used is great. I opted for the 18v option and choose to replace the stock op amp with a AD8066 unit which suits my grado sr325is very well. I know the grados do not need to extra juice but this comes in handy when using different cans as well. Coupled with my Grados for a little portable system the sound is great and well balanced. I cannot recommend this amp highly enough for what it is. The bass boost feature is useful sometimes dependant on the genre of music and how it is mixed/mastered....in some instances it can "add depth" to some tracks. The only issues I've had is the input jack becoming faulty, I sent the amp back for repair and I must admit the customer service was great and I was informed this was a rare case of a faulty jack, since the amp has been returned I have had no further issues. The amp internally is very streamlined and quality components have been used, op amps are very much personal preference but I highly recommend trying the AD8066 out you won't be disappointed. I am considering buying another for my brother and would recommend this amp to anyone wanting a cheap portable solution. :)
Pros: Very noticeable SQ increase on high impedance 'phones, bass boost switch, nice look, budget-minded, great costumer service
Cons: Enclosure is not the sturdiest thing in existence (what would you expect)
A fantastic product, JDSLabs make some great CMoys, and the bass boost is fantastic from my point of view. Some may argue it is a bit muddy at higher volumes, but I rarely noticed it to an extreme extent, and even when I noticed it a bit, I remembered how cheap the amp was (also, never forget you can turn off the bass boost). If you don't like the "hipster-ish" look of it, or don't trust the enclosure, I know tons of people bought $10 enclosures and fit them in just fine. I'd recommend this in a heartbeat.
Notes: Used with DT770 Pro 250 Ohm
Hey, thanks for the review. I've just bought one!  Can you suggest and recommend any other cases for it?
Pros: Good price,long battery life, and good sound
Cons: none
This amp is just as good as he Headstage Arrow G4 amp I also bought, only the Arrow is 4x the price of the CMoy amp.


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