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ablaze

PPA builders' thread

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nah didn't. nobody want my 5002s rolleyes.gif

 

changed from the 637/627s to 8610s on all three channels. can't decide which I prefer. the 8610s was a bit bright on certain stuff. but seems to have burned in a bit. or maybe my ears ppth.gif

I figured using more expensive opamps like the opas will have higher resale value? biggrin.gif

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I've some time in between the baby sleeps and managed to complete my PPA. Here's the picc,

 

 

user posted image

Above is the a pic of the PPA and my SLA battery supply. The swtich in front of the PPA is for the bass boost.

 

user posted image

My old Meta42 besides the PPA

 

user posted image

The Back, with on/off, DC in, RCA.

 

user posted image

And the Porn.

Edited by jtfoo

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I've listened to it with the the default ADD8610 for a while. Intend to swap to a OPA637 in later date.

 

Overall 1st impression is this guy got speed and is very fast. Listening to rock music is very exciting and lively. Thouroughly enjoyed listening to Green Day, Ramones on it..

The bass boost is very strong. With Metallica's ONE (about 4:36min), my ears were literally flapping inside the DT880. Kinda nice have ear massaging feeling while listenings to MEtallica, certainly is a bonus biggrin.gif

While it didn't had the ear flapping effect when I tried the Sony EGGO and Grado SR125, the bass was generally stornger without the boost..

 

I'm using 68nf // 15nf to get total 83nf, and the bass is already strong, so I would think using the default 100nF that is on the schematics will be too overwelming.

Edited by jtfoo

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jt,you using the same Cliff-UK headphone jack from LHS? happy.gif

Yah, the same CLiff jack, but I got it from Farnell instead. Didn't know LHS has the Cliff.

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