DIY Dodd Buffer

TrungT · « **Reply #380 on:** 5 May 2010, 08:00 pm »

Dmatt
You should not have any problem with stepped attenuators with the same 100K value.
But the Alps come with the kits is very good pot anyway.
Just my .01 cent

dmatt · « **Reply #381 on:** 5 May 2010, 08:19 pm »

Thanks Trung.

Yes, I figured the parts Gary supplied are top notch (I've used Sonicaps in crossover builds).

But this is the first time I've had something I could swap parts in and out of and "listen". My guess is that I will only make things worse, but that's the fun of it.

I am also toying with the idea of making a battery-powered eight channel buffer to sit between my Oppo BDP-83SE analog outs and my HT amps. Since the Oppo handles all the processing, all I need is a 'volume control' in front of my amps. Imagine four Dodd buffers connected to a DACT CT2 eight channel attenuator (insert maniacal laughter here). I don't know how well the channel matching would be between the four sets of dual channels (I suppose I would need a matched quad of tubes) but it sure is fun to dream big!

David

TrungT · « **Reply #382 on:** 5 May 2010, 08:26 pm »

David
humm... .. 8 channels .... all you need .... 4 Dodd buffer

You may need Gary input on this, but safe for sure 4 Dodd buffer should do the tricks

Let us know what's your finding.
Let your ears do the judge.

ebag4 · « **Reply #383 on:** 6 May 2010, 01:16 pm »

Update*
I now have a little over 100 hrs on my Dodd DIY Buffer, I am currently running a GE JG5751. It is sounding smooth, clear, dynamic. I am really loving this thing!

Best,
Ed

HT cOz · « **Reply #384 on:** 6 May 2010, 01:24 pm »

Quote from: dmatt on 5 May 2010, 08:19 pm

Thanks Trung.

I am also toying with the idea of making a battery-powered eight channel buffer to sit between my Oppo BDP-83SE analog outs and my HT amps. Since the Oppo handles all the processing, all I need is a 'volume control' in front of my amps.

That would be sweet~!

TrungT · « **Reply #385 on:** 6 May 2010, 03:01 pm »

ED

What are you running with the Dodd Buffer?

jtwrace · « **Reply #386 on:** 6 May 2010, 03:05 pm »

Quote from: ebag4 on 6 May 2010, 01:16 pm

It is sounding smooth, clear, dynamic. I am really loving this thing!
Best,
Ed

Glad to hear that you are experiencing the same thing I am. I love the little bugger as well!

To Gary

ebag4 · « **Reply #387 on:** 6 May 2010, 03:19 pm »

Quote from: TrungT on 6 May 2010, 03:01 pm

ED

What are you running with the Dodd Buffer?

I am running the ClassD 120 amp into the GR Research V-1 coaxs, but you know that

. I am also trying out an interconnect some generous soul made for me but I still haven't done any AB comparisons Trung!

Best,
Ed

ebag4 · « **Reply #388 on:** 6 May 2010, 03:20 pm »

Quote from: jtwrace on 6 May 2010, 03:05 pm

To Gary

x2

Best,
Ed

Mariusz · « **Reply #389 on:** 7 May 2010, 01:33 am »

Possibly found the source (power/mute board wiring) of trouble - will report back tomorrow.

TrungT · « **Reply #390 on:** 7 May 2010, 02:00 am »

Mariusz - Great, hurry up and make she sing please.

I having my ClassD amp a make-over to matching with the new Dodd Buffer, if everything working out right,
the ClassD and Dodd Buffer will be at the LoneStarAudioFest.

Ed - "World Best Cable" ?

(for money)

ebag4 · « **Reply #391 on:** 7 May 2010, 02:06 am »

Quote from: TrungT on 7 May 2010, 02:00 am

Ed - "World Best Cable" ? (for money)

Absolutely!

Best,
Ed

Mariusz · « **Reply #392 on:** 7 May 2010, 02:11 am »

OK - wifey's friend is over for chic chat ...... I'll fire up the iron and report in a few.

Mariusz · « **Reply #393 on:** 7 May 2010, 03:26 am »

Nope, worst then before.
I need a break.

TrungT · « **Reply #394 on:** 7 May 2010, 03:41 am »

Mariusz
Please take few pictures, we will work it out.

ebag4 · « **Reply #395 on:** 7 May 2010, 07:40 pm »

Quote from: TrungT on 7 May 2010, 03:41 am

Mariusz
Please take few pictures, we will work it out.

Yes, take a few pics, we'll get you up and running.

Best,
Ed

jtwrace · « **Reply #396 on:** 7 May 2010, 07:41 pm »

Quote from: Mariusz on 7 May 2010, 02:11 am

OK - wifey's friend is over for chic chat ...... I'll fire up the iron and report in a few.

As wifey's friend...maybe she knows. They know everything...

Mariusz · « **Reply #397 on:** 8 May 2010, 12:17 am »

Took some pictures but I am having a hard time uploading them to AC since I am away from my personal PC and forced to rely on my iPhone.
I will give it a shot. If it won't work..... might be able to drew a quick diagram.

TrungT · « **Reply #398 on:** 8 May 2010, 12:25 am »

Mariusz
Email me if you needed
trunganhtran ahotmail
I may upload it for you.

Mariusz · « **Reply #399 on:** 8 May 2010, 12:30 am »

Thanks!

Will do....(as soon as I lower my sails

)