i want to build a amp
Mar 25, 2006 at 4:00 PM Thread Starter Post #1 of 15

eTe

100+ Head-Fier
Joined
Feb 17, 2006
Posts
183
Likes
10
can anyone help me out and suggest a place that sells a kit for building a headphone amp...the store should be located in toronto...portable or not as long as i get more out of my headphones...sr-80 =)
 
Mar 25, 2006 at 7:07 PM Post #6 of 15

firefox360

500+ Head-Fier
Joined
May 23, 2005
Posts
765
Likes
10
Quote:

Originally Posted by Eisenhower
Do you think the pimeta might be a good place to start? since the end product should sound better.


It's a good amp to start with, but if you screw it up, you'll find yourself banging your head againsts a wall. The CMoy is a great amp to start with because the parts are relatively cheap (as well as the excellent documentation), and so if you manage to burn the opamp, resistor, or blow the capacitors, it won't hurt your wallet as much. Of course though, if you bought top of the line exotic parts for your CMoy and managed to screw up, that wouldn't help...
 
Mar 25, 2006 at 7:08 PM Post #7 of 15

The Monkey

Monkey See, Monkey DAC
A really sick dud
Joined
Oct 28, 2004
Posts
8,010
Likes
135
Quote:

Originally Posted by Eisenhower
Do you think the pimeta might be a good place to start? since the end product should sound better.


Kind of depends on the OP's soldering experience and electronics experience. The cmoy is probably more difficult in the soldering department, but a lot less painful to the wallet if you screw it up as a first time project. Plus, I learned a lot from troubleshooting the cmoy that helped with my Pimeta. I guess bottom line: I think building a cmoy first will lead to building an even better Pimeta later.


Or a Pint...
evil_smiley.gif
 
Mar 25, 2006 at 11:01 PM Post #9 of 15

thenewguy

New Head-Fier
Joined
Mar 22, 2006
Posts
17
Likes
0
Yes, definitely go with the Cmoy! There is so much documentation and although it might hit the wallet but not as much as other DIY portable amp projects.
 
Mar 26, 2006 at 12:02 AM Post #10 of 15

The_Duke_Of_Eli

Headphoneus Supremus
Joined
Feb 23, 2006
Posts
2,113
Likes
10
Quote:

Originally Posted by thenewguy
Yes, definitely go with the Cmoy! There is so much documentation and although it might hit the wallet but not as much as other DIY portable amp projects.


Probably the cheapest of all DIY amps.
 
Mar 26, 2006 at 12:32 AM Post #11 of 15

quoteunquote

100+ Head-Fier
Joined
Feb 27, 2006
Posts
244
Likes
0
been interested lately myself, also. i was curious. is the list of tools on the tangent site up-to-date? or are there better alternatives to the tools available these days? just looking for a basic setup.
 
Mar 26, 2006 at 4:37 AM Post #12 of 15

Paragon

100+ Head-Fier
Joined
Jul 2, 2001
Posts
425
Likes
0
I would build the simplest amp you can just to get used to everything then spend money if you find you need/want to. Cmoy's amp is always a great start.

As for tools, the list is pretty goood. Here would be mine:
Solder iron (600-700°F / 20-25W) with small tip,
Sponge for cleaning the tip
63/37 Eutectic solder (easier to work with than 60/40)
Desoldering braid (nice to have it if you need it)
DMM with mV DC, resistance, continuity or diode tester (most useful in finding shorts)
Small wire cutters (semi-flush cut is good - I need to pick up a pair)
Small needle nose pliers
Small flathead screwdriver mainly for removing socketed ICs but a basic set is always handy (I used my mini SwissArmy knife's screwdriver - keep in mind that you need room on the board to use this. IC removers are handy when in tight spaces)
I like to have some flux around (flux pen is handy) to help the solder wet flow on some parts better (especially with RoHS compliant parts)

The Swiss knife/scissors also useful in stripping wire if you have light hand and dont cut the wire.
I have some helping hands out in the garage somewhere but got away with not using them. They are handy to use (make sure the jaws don't wreck the PCB) but I am nimble enough to not need them.

Anyhoo.. good luck in your ventures.
 
Mar 26, 2006 at 10:44 AM Post #13 of 15

tomb

Member of the Trade: Beezar.com
Joined
Mar 1, 2006
Posts
10,535
Likes
761
Benjamin Feist has an excellent article on the web for building the Apheared A47:

How to build the Apheared A47 Headphone Amplifier for Grado Headphones

His diagram is a direct knockoff from Tangent's CMoy tutorial, so it should go together about the same, with little added difficulty. You will have trouble fitting more than one 9V battery in a mint tin with Feist's design, though. If you notice, he just went with a straight adapter.

I needed something quick for my new HD580's, so I built to Tangent's instructions exactly. Even with more wire than I should've used, I was able to shoehorn two 9V's in an Altoids can. Works great.

So, I think it depends on your current choice of cans. As the others have suggested, it's still probably better to do Tangent's CMoy, there are fewer parts to worry with the first time out.
 
Mar 26, 2006 at 11:57 PM Post #15 of 15

The Monkey

Monkey See, Monkey DAC
A really sick dud
Joined
Oct 28, 2004
Posts
8,010
Likes
135
Quote:

Originally Posted by Eisenhower
I guess baby steps is probally the way to go. BTW, is there any info (for a novice) on how the cmoy actually works?


Tangent's site is really the place to start. But also refer to Chu Moy's original article.
 

Users who are viewing this thread

Top