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Post pics of your builds.... - Page 615

post #9211 of 9593

I also had a chance to listen to Scleratus' rig through LCD-2's and they were definitely one of the highlights of the LA meet.  

 

The bass-attack was so powerful but the amp still sounded natural and musical.

post #9212 of 9593

Here are some pics of my humble build (in-progress).  Far from a 300B-build, this is a 3W EL84 amplifier.  The amp is designed by Shannon Parks and he has named it the Budgie SE:

 

Just waiting for the Elcor's to arrive: 


Picture of the underside:

 

 

Picture of the Amp in the Hammond-enclosure (just a test-fit):

 

 

Not sure if you can tell from the pics, but this amp is small! (about as long as 3 cd-cases end to end)

post #9213 of 9593
Quote:
Originally Posted by dsound View Post

Here are some pics of my humble build (in-progress).  Far from a 300B-build, this is a 3W EL84 amplifier.  The amp is designed by Shannon Parks and he has named it the Budgie SE:

 

Just waiting for the Elcor's to arrive: 


Picture of the underside:

 

 

Picture of the Amp in the Hammond-enclosure (just a test-fit):

 

 

Not sure if you can tell from the pics, but this amp is small! (about as long as 3 cd-cases end to end)

A very classy look for a small package.  (You can guess I like wood)  Nice build too.

I like it a lot !

 

Let me know how it sounds.

 

Gonna ask for some input..

post #9214 of 9593

Input request.

 

As if the DG 300B hasn't cost a lot already, my desire for balanced XLR's to match my Gungnir has gotten to stupid money.

 

As I posted here and on the build thread,  I learned that an ordinary volume pot aint gonna work with XLR's

I either need to go behind the IPT's or use a stepped attenuator.  @Holland also has an option. 

 

I was determined to go the stepped attenuator route but due to the centered location of my volume hole and the length of a 4 deck attenuator I need add a flexible extension shaft. Including custom Misumi Automation bracket $100.  4 Deck Attenuator $275.  Already bought new cables, but DANG !

 

Easiest go back to RCA.

 

I'm now proceeding with Hollands option.  I have the jacks and new Mogami cables on the way.

I'll check my parts and give it a go.

 

Comments?

post #9215 of 9593

Just finished eliminating the volume pot altogether, wiring home-run from the XLR jacks to the board and controlling the volume from iTunes.

This was supposed to be a test to find noise / hum.  (Ya, now I know the pot is incompatible with XLR / IPTs)

 

Well guess what?  It's going to remain this way for quite some time.

Balanced through the Gungnir....this amp has never sounded better.  A clear step above the voice it had at the meet.

It's dead bang quiet with classical music.  Now it's a headphone amp.

 

 

I think a working volume knob is overrated.  Perhaps a pullout bottle opener. L3000.gif

post #9216 of 9593
Quote:
Originally Posted by sceleratus View Post

Input request.

 

As if the DG 300B hasn't cost a lot already, my desire for balanced XLR's to match my Gungnir has gotten to stupid money.

 

As I posted here and on the build thread,  I learned that an ordinary volume pot aint gonna work with XLR's

I either need to go behind the IPT's or use a stepped attenuator.  @Holland also has an option. 

 

I was determined to go the stepped attenuator route but due to the centered location of my volume hole and the length of a 4 deck attenuator I need add a flexible extension shaft. Including custom Misumi Automation bracket $100.  4 Deck Attenuator $275.  Already bought new cables, but DANG !

 

Easiest go back to RCA.

 

I'm now proceeding with Hollands option.  I have the jacks and new Mogami cables on the way.

I'll check my parts and give it a go.

 

Comments?

 

Sorry, I just got done smashing my head against a car window for three hours due to some retard cop who had to stop some guy to give him a ticket in the middle lane.....of a 3 lane road. 

 

I believe the poor guy ran out of gas, and instead of the cop pushing the car off to the side, the idiot left it in the middle of the road and caused major traffic. 

 

So forgive me if I seem a bit too blunt or irritated. 

 

I am doing you a massive favor because I think you made a critical error. 

 

Ditch all your XLR stuff as quickly as possible.

 

The benefit of having XLR is that you have 2 separate ground pins/wires which some say reduces the cross talk.

 

1: the people who think that, are either the dumbest people in the world, or... their ground on the amp is literally so bad, that they actually are getting getting cross talk. Even then, it is because their amp is crap and it has NOTHING to do with cable.

 

2: there are two types of "balanced" cable. 4 pin XLR is a true balanced cable. It still does absolutely nothing useful, but it is balanced. 3 pin XLR is pseudo balanced, but not really because they have a shared ground pin. 

 

You have all 3 pin XLR connections. Skip it, save your money. Make a great grounding wire, get better tubes, upgrade your caps to something good. Simple really; spend that money on anything other than cables, or beats dre headphones....................................................... but don't spend your money on XLR anything. 

post #9217 of 9593

Three poles per channel should be okay- +/- and shield. By using this connection you omit BAL->UNBAL opamp circuit in the DAC.

post #9218 of 9593

Finished my EHHA Rev. A over the week end.  Sounds greater than great.  Tried a few different tubes and settled on a pair of Amprex 6GM8's.The build was from a Glass Jar Audio kit.  I upgraded a bit with a SumR transformer, some Vampire RCA's and a TKD pot.  Casing is based on a design by Stixx and matches my M3.

 

A few pics:

 

 

 

I have posted a few mor pictures on the EHHA Rev. A thread.

 

Thanks for looking

Jim

post #9219 of 9593

Great Job!  Looks super-clean.  What headphone(s) do you pair it with?

Quote:
Originally Posted by muskyhuntr View Post

Finished my EHHA Rev. A over the week end.  Sounds greater than great.  Tried a few different tubes and settled on a pair of Amprex 6GM8's.The build was from a Glass Jar Audio kit.  I upgraded a bit with a SumR transformer, some Vampire RCA's and a TKD pot.  Casing is based on a design by Stixx and matches my M3.

 

post #9220 of 9593
Quote:
Originally Posted by Tjj226 Angel View Post

 

Sorry, I just got done smashing my head against a car window for three hours due to some retard cop who had to stop some guy to give him a ticket in the middle lane.....of a 3 lane road. 

 

I believe the poor guy ran out of gas, and instead of the cop pushing the car off to the side, the idiot left it in the middle of the road and caused major traffic. 

 

So forgive me if I seem a bit too blunt or irritated. 

 

I am doing you a massive favor because I think you made a critical error. 

 

Ditch all your XLR stuff as quickly as possible.

 

The benefit of having XLR is that you have 2 separate ground pins/wires which some say reduces the cross talk.

 

1: the people who think that, are either the dumbest people in the world, or... their ground on the amp is literally so bad, that they actually are getting getting cross talk. Even then, it is because their amp is crap and it has NOTHING to do with cable.

 

2: there are two types of "balanced" cable. 4 pin XLR is a true balanced cable. It still does absolutely nothing useful, but it is balanced. 3 pin XLR is pseudo balanced, but not really because they have a shared ground pin. 

 

You have all 3 pin XLR connections. Skip it, save your money. Make a great grounding wire, get better tubes, upgrade your caps to something good. Simple really; spend that money on anything other than cables, or beats dre headphones....................................................... but don't spend your money on XLR anything. 

Thanks for your suggestion.

 

Last night I ran home-run from the XLR jacks to the board.  No Volume POT.

It was the cleanest this amp has ever sounded.  With RCA's I had some light snow I wanted to clean up.  It's gone.  Dead Bang quiet and a great voice.

 

However when iTunes volume is at 1 of 20 clicks it volume is barely tolerable. I need to attenuate it in some way.  I am working on one design that allows for a POT with XLR.

Again, the music with XLR was magnificent.   The only other way is to bite it for a stepped attenuator.  I could make one with a one deck 4P3T rotary.  I think I can fit the ELMA rotary and it would give me 3 steps where each step has 20 iTunes sub-setps.  Not ideal.

post #9221 of 9593
Quote:
Originally Posted by sceleratus View Post

Thanks for your suggestion.

 

Last night I ran home-run from the XLR jacks to the board.  No Volume POT.

It was the cleanest this amp has ever sounded.  With RCA's I had some light snow I wanted to clean up.  It's gone.  Dead Bang quiet and a great voice.

 

However when iTunes volume is at 1 of 20 clicks it volume is barely tolerable. I need to attenuate it in some way.  I am working on one design that allows for a POT with XLR.

Again, the music with XLR was magnificent.   The only other way is to bite it for a stepped attenuator.  I could make one with a one deck 4P3T rotary.  I think I can fit the ELMA rotary and it would give me 3 steps where each step has 20 iTunes sub-setps.  Not ideal.

 

Slight snow with RCA????

 

how exactly are you grounding your circuit, and what connectors are you using? 

 

I don't care whether you prefer RCA or XLR. In either case, there should not be snow in any type of connector. 

post #9222 of 9593
Quote:
Originally Posted by Tjj226 Angel View Post

 

Slight snow with RCA????

 

how exactly are you grounding your circuit, and what connectors are you using? 

 

I don't care whether you prefer RCA or XLR. In either case, there should not be snow in any type of connector. 

To mains via Furman AC-215A

 

Grounds as illustrated.

Terminal blocks on boards as pictured.

 

 

 

 

 

post #9223 of 9593
Quote:dsound
  What headphone(s) do you pair it with?

For the most part, I use Senn 600HDs.  However, I had it at a meet a few weeks ago before it was 100% complete.  Two different pairs of phones stood out with this amp.  A set of Grados and a set of Beyerdynamic DT 880s (250 ohm).  My listening was limited to some Kodo and Iron Butterfly.  Both sounded great.  The Beyers did slightly better with this bass heavy material but the Grados held their ground too.  Mater of fact, both are on my buy list.  During construction, I also used some ear buds from Apple and others (down to 15 ohm).  The Apples sounded really good but the others were cheap and sounded that way. 

 

Jim

post #9224 of 9593

 

AppleMark

 

 

My new 3D setup OPPO BDP-105>Pioneer Elite DC-67>Samsung 7010

Lossless>Meier Daccord>Meier Corda Classic>T1

My man cave needs new speakers to pair with the AVR, right now using vintage Cerwin Vega 250 series front speakers and Polk Audio center, Yamaha SW, and Bose and KLF surround.

post #9225 of 9593

My very first humble case build. O2 with SkeletonDAC and selfmade pushon-pushoff circuit.

 

 

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