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Is this CMOY amp good enough ?
Is this CMOY amp good enough ?
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Old 3rd April 2019, 08:22 AM   #1
eljoantonyn is offline eljoantonyn  India
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Default Is this CMOY amp good enough ?

Hi !
I do have a big integrated amp with headphone out. But, it gets warm after some time even with the main speaker output turned off.
So, I'm looking for a cheap headphone amp and came across this.
CMoy Head Phone amplifier kit

It should be good, right ?

BTW, here is the schematic. https://diycomponents.in/resources/d...-Schematic.pdf
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Old 3rd April 2019, 01:36 PM   #2
adason is offline adason  United States
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good enough? likely yes, depends mainly on your expectations

but if you want really good, try this one
Headphone amplifier /preamp board base on Lehmann Linear amp with ALPS pot 699985367033 | eBay
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Old 3rd April 2019, 03:18 PM   #3
xrk971 is offline xrk971  United States
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Is this CMOY amp good enough ?
Try a SE Class A HPA rather an opamp. Many designs around, but my 2-transistor one is easy to build and sound quality is great - confirmed with several online reviews.

xrk971 Pocket Class A Headamp GB

It even fits in same mint tin as CMOY.

Click the image to open in full size.
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Old 4th April 2019, 02:40 AM   #4
PRR is offline PRR  United States
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Whoa!!
February 12, 2016, Pow Chu Moy, founder of HeadWize and creator of the Chu Moy Headphone Amplifier, passed away in Reno, Nevada.
University of Minnesota magazine page 53
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Old 4th April 2019, 05:30 AM   #5
eljoantonyn is offline eljoantonyn  India
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Quote:
Originally Posted by adason View Post
good enough? likely yes, depends mainly on your expectations

but if you want really good, try this one
Headphone amplifier /preamp board base on Lehmann Linear amp with ALPS pot 699985367033 | eBay
Thanks for the reply. I just want to use the NICEHCK EB2 earphone which is not that demanding. It needs to be decent sounding. Also, my DIY DAC with the Burson Classic V6 OPAMP is high in details. SO, the amp must not mask it. And yeah, I like slightly "bright" or a "neutral" sound.

BTW, ebay.com is not working in my country. Ebay Canada works though. So, is this the product you were talking about ? Assembled Headphone Amplifier Board base on Lehmann Linear amp with ALPS pot 699974689276 | eBay

Quote:
Originally Posted by xrk971 View Post
Try a SE Class A HPA rather an opamp. Many designs around, but my 2-transistor one is easy to build and sound quality is great - confirmed with several online reviews.

xrk971 Pocket Class A Headamp GB
Thanks for the recommendation ! I have read that review and I'm sure you have made a world beating product in a tight budget. I have some questions which I'll ask in that thread (GB thread).

Absolute Legend ! When I was just starting out the hifi journey sometime back, his CMOY amps were all the rage reg. DIY headphone amp.
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Old 4th April 2019, 06:28 AM   #6
RNMarsh is offline RNMarsh  United States
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Mostly, it is going to depend on the headphones Z. Low Z will be unusable with small 9v limited current capacity batteries. Medium-High impedance headphones will do best with that HPAmp.


THx-RNMarsh
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Old 4th April 2019, 06:58 AM   #7
eljoantonyn is offline eljoantonyn  India
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The EB2 has 32Ohm impedance and is termed "difficult to drive" and "need good quality amp to sound good" by reviewers !
So, what type of headphone amp do you think would suite the EB2 ?
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Old 4th April 2019, 08:41 AM   #8
00940 is offline 00940  Belgium
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Ow. I joined headwize in fall 2002 iirc. The forum was such a nice place and the library of projects was just a treasure trove. The hobby owes him a great deal.
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Old 4th April 2019, 09:21 AM   #9
eljoantonyn is offline eljoantonyn  India
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By the way, there are lots and lots of "clone" kits in Aliexpress.

Not sure if its good or not.
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Old 4th April 2019, 09:44 AM   #10
NealJ is offline NealJ  United Kingdom
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Is this CMOY amp good enough ?
Quote:
Originally Posted by 00940 View Post
Ow. I joined headwize in fall 2002 iirc. The forum was such a nice place and the library of projects was just a treasure trove. The hobby owes him a great deal.

A tribute site has been set up and many of the projects have been uploaded.
DIY Projects – HeadWize Memorial
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