DIY Headphone Amp!!!!

cmy330go · 12-08-2005, 02:58 AM

I Just compleated my first DIY Headphone amp!

All of it is enclolsed in an Altoids tin. It is powered by a 9v battery and uses a burr-brown op-amp. So far I have only used it with my ipod. WOW what a difference. I have always loved my Ipod but felt it lacked real UMPH! Not the case anymore.

I ordered enough supplies to build two more and am really looking forward to trying different op-amps and tweaking the circuit.

Pics to come!

~Dave~

Edit: Photos

Joey_V · 12-08-2005, 04:46 AM

A classic CMOY amp... nice job!

I have (err... had - since the guy just paid for it, but I still havent shipped it) a nice headphone setup with a dedicated headphone amp - the Headamp (headamp.com) GS-1 amp....

Paired with my 650s, they are reeeal good... but I still think that they are both a bit too expensive considering what one can get from the speaker realm of audio. The headphone amp was $750 when I bought it... that can pretty much buy you a used Rotel RB1080!

cmy330go · 12-08-2005, 04:56 AM

Yep....it's a CMOY. I have to admit that it is way better than I expected. I seriously doubted that a mere $30 in parts could render such results.

steveinaz · 12-08-2005, 10:04 AM

VERY cool man.

cmy330go · 12-08-2005, 02:54 PM

Thanks guys!

I would recommend this project to anyone with the ability.

faster100 · 12-08-2005, 03:33 PM

instructions and parts list would be cool

audiobliss · 12-08-2005, 03:43 PM

^^ Sure would be. That looks awesome! Great job!

What exactly is an 'op-amp'?

Jstas · 12-08-2005, 05:11 PM

For those that aren't psychic.

To build one of your own...
http://tangentsoft.net/audio/cmoy-tutorial/

To buy one already built...
http://www.evilfire.com/

Ricardo · 12-08-2005, 08:00 PM

Quote:

Originally Posted by audiobliss

^^ Sure would be. That looks awesome! Great job!

What exactly is an 'op-amp'?

Op-Amp

http://en.wikipedia.org/wiki/Operational_amplifier

Shizelbs · 12-08-2005, 10:24 PM

Nice cmoy.

Yeah, that tangent link is a good one. I almost undertook the project myself. If nothing else its a cheap way to learn to solder.

The cmoy is nice because you can travel with it and you don't have to plug it in. Nice work.

Dennis Gardner · 12-08-2005, 11:08 PM

I had a bad case of altoids once, the itching was unbearable.

Oh yeah......nice amp Dave!

cmy330go · 12-08-2005, 11:44 PM

Quote:

Originally Posted by Dennis Gardner

I had a bad case of altoids once, the itching was unbearable.

Oh yeah......nice amp Dave!

Thanks!

Sorry to hear about your 'toids.

12-08-2005, 02:58 AM	#1
cmy330go Polkologist Member Sales Rating: (1) Join Date: May 2003 Location: West Des Moines, IA Posts: 2,203	DIY Headphone Amp!!!! I Just compleated my first DIY Headphone amp! All of it is enclolsed in an Altoids tin. It is powered by a 9v battery and uses a burr-brown op-amp. So far I have only used it with my ipod. WOW what a difference. I have always loved my Ipod but felt it lacked real UMPH! Not the case anymore. I ordered enough supplies to build two more and am really looking forward to trying different op-amps and tweaking the circuit. Pics to come! ~Dave~ Edit: Photos Attached Thumbnails __________________ HT Mits WD-62725, DirecTV HD Tivo, Oppo DV-970HD, Pioneer DVR-310, XBOX, Yamaha RX-V2500, Parasound Halo A23, Yamaha CDR-HD1300, Music Hall MMF-2.1, LSi-15, LSi-C, LSi-FX, LSi-7, PSW-1000, Monster HTS2600 2 CH Sound Quest SQ-88, Sutherland Ph.D, Music Hall MMF-7, Arcam CD72T, Energy RC-10, Monster HTS2500, VPI 16.5 First rule of SOPA....YOU DON"T TALK ABOUT SOPA!!!! Last edited by cmy330go; 12-08-2005 at 04:53 AM..

12-08-2005, 04:46 AM	#2
Joey_V Polkologist Member Sales Rating: (1) Join Date: Jun 2004 Location: Chitown, IL Posts: 2,003	A classic CMOY amp... nice job! I have (err... had - since the guy just paid for it, but I still havent shipped it) a nice headphone setup with a dedicated headphone amp - the Headamp (headamp.com) GS-1 amp.... Paired with my 650s, they are reeeal good... but I still think that they are both a bit too expensive considering what one can get from the speaker realm of audio. The headphone amp was $750 when I bought it... that can pretty much buy you a used Rotel RB1080! __________________ Joey's College Gear: Current Gear: SB3 -> PS Audio DAC III -> Cary Audio SLP-98Phono Tube PreAmp w/ Sylvania NOS 6sn7 tubes -> Plinius SA102 Class A amp -> Martin Logan SUMMIT/Strata Mini -> Old Gear: Martin Logan Vantage (4.75/5)-ML Mosaic (4.25/5)-Onix Ref1 (3.7/5)-Sonus Faber Concerto (3.5/5)-SF Concertino (3/5)-Axiom M22ti (2.75/5)-Polk LSi9 (3.75/5)-LSi7 (3.25/5)-HK AVR330-Rotel RC1070/RB1070/RB1090-SVS 25-31PC+ sub RUSH Med School 2008!!

12-08-2005, 10:04 AM	#4
steveinaz Polk Guru Member Sales Rating: (6) Join Date: Sep 2003 Location: Javelina Highway Posts: 9,682	VERY cool man. __________________ - C.E.C. CD-3300 CD Transport - Belden 1694A Digital Coaxial - Benchmark DAC/PRE Preamp/DAC - Kimber Hero Interconnects - Parasound HCA-1500A Power Amplifier - Kimber 8TC v.2 Speaker Cable - Energy Connoisseur C-9 Speakers

12-08-2005, 03:33 PM	#6
faster100 Polk Master Member Sales Rating: (1) Join Date: Sep 2001 Posts: 6,114	instructions and parts list would be cool __________________ MY HT RIG: Sherwood p-965 Rotel 1075 amp x5 Rotel 1080 stereo amp samsung hd-850 dvd player Realistic lab 450 TT LSI15 mains LsiC center LSIfx surround backs Lsi7 side surrounds Soon to be (later now) SVS sb/12plus 2 Channel Rig: Pioneer SS RC-760 pre-amp/remote control Polk Rt25i's Toshiba 3960 cd Optonica st-4205 Tuner Vintage 6v6 Tube amp modded Monster 14/4 homemade speaker cable monster 600 IC Signal cable IC

12-08-2005, 03:43 PM	#7
audiobliss Polk Guru Member Sales Rating: (6) Join Date: Dec 2003 Location: American by birth, Southern by the grace of God! (NC) Posts: 12,062	^^ Sure would be. That looks awesome! Great job! What exactly is an 'op-amp'? __________________ My Saga Equipment Pictures [2CH] Rotel RCD-02 Yamaha KX-W900U Sony ST-S500ES Denon DP-7F Parasound P/HP-850 Parasound HCA-1000A Klipsch RF-35 [In Storage] Yamaha CDR-HD1300 ASL Wave 20 monoblocks Pro-Ject Phono Box MKII [Car System] Pioneer Premier DEH-P860MP Memphis 16-MCA3004 Boston Acoustic RC520

12-08-2005, 04:56 AM	#3
cmy330go Polkologist Member Sales Rating: (1) Join Date: May 2003 Location: West Des Moines, IA Posts: 2,203	Yep....it's a CMOY. I have to admit that it is way better than I expected. I seriously doubted that a mere $30 in parts could render such results.

12-08-2005, 02:54 PM	#5
cmy330go Polkologist Member Sales Rating: (1) Join Date: May 2003 Location: West Des Moines, IA Posts: 2,203	Thanks guys! I would recommend this project to anyone with the ability.

12-08-2005, 05:11 PM	#8
Jstas Polk Guru Member Sales Rating: (2) Join Date: Dec 2002 Location: Denial...it's in Egypt. Posts: 7,578	For those that aren't psychic. To build one of your own... http://tangentsoft.net/audio/cmoy-tutorial/ To buy one already built... http://www.evilfire.com/ __________________ You're just jealous 'cause the voices don't talk to you!

12-08-2005, 10:24 PM	#10
Shizelbs Polk Master Member Sales Rating: (10) Join Date: Jan 2003 Location: Seattle Posts: 6,998	Nice cmoy. Yeah, that tangent link is a good one. I almost undertook the project myself. If nothing else its a cheap way to learn to solder. The cmoy is nice because you can travel with it and you don't have to plug it in. Nice work. __________________ The "Still Needs a Proper Name' Rig: Shanling CDT 100 > Carver Silver 7t monoblocks > Carver Amazing Platinums

12-08-2005, 11:08 PM	#11
Dennis Gardner Polkologist Member Sales Rating: (1) Join Date: Dec 2003 Location: Sooner Country Posts: 3,468	I had a bad case of altoids once, the itching was unbearable. Oh yeah......nice amp Dave! Last edited by Dennis Gardner; 12-08-2005 at 11:12 PM..

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