What equipment have you built recently?

0 Members and 1 Guest are viewing this topic. Read 80158 times.

sts9fan

Re: What equipment have you built recently?
« Reply #100 on: 15 Nov 2010, 03:22 pm »
I just finished a pair of Solo103 speakers from HumbleHiFi.  They use the Fostex FE103en driver in place of the FE103e because I could not get the older model.  Of course they do not play super low but I am using them with a GR servo sub so no issue there. I think they sound very nice and smooth.  I used 3/4" blatic birch for the cabs.  Here are a few pics.  I am in the process of building some stands for them out of 1.5" square steel tubing. 
http://www.humblehomemadehifi.com/Solo103.html







 

poseidonsvoice

  • Full Member
  • Posts: 3478
  • Science is not a democracy - Earl Geddes
    • 2 channel/7 channel setup
Re: What equipment have you built recently?
« Reply #101 on: 15 Nov 2010, 03:26 pm »
Wow!  A sweet weekend project. Would be great for my computer setup. Thanks for the info and insight!

Anand.

poseidonsvoice

  • Full Member
  • Posts: 3478
  • Science is not a democracy - Earl Geddes
    • 2 channel/7 channel setup
Re: What equipment have you built recently?
« Reply #102 on: 25 Nov 2010, 06:26 am »
Poseidon's Voice Rohan

Class D amplifier design utilizing Class D Audio's SDS254 board, Peter Daniel PS boards w/Mundorf E-lytics, Paul Kaplan's IEC Felix filter, and Antek 400VA toroidal transformer.


















Questions/criticisms welcome.

Enjoy,

Anand.
« Last Edit: 3 Dec 2010, 03:54 am by poseidonsvoice »

TrungT

Re: What equipment have you built recently?
« Reply #103 on: 25 Nov 2010, 07:17 am »
CDA 254
1000VA toroidal transformer
2 X 68,000 uf caps
Soft start






« Last Edit: 28 Nov 2010, 07:27 am by TrungT »

DougSmith

  • Jr. Member
  • Posts: 158
  • What will the next hundred years bring?
Re: What equipment have you built recently?
« Reply #104 on: 25 Nov 2010, 02:42 pm »
Poseidon's Voice Rohan

Class D amplifier design utilizing Class D Audio's SDS254 board, Peter Daniel PS boards w/Mundorf E-lytics, Paul Kaplan's IEC Felix filter, and Antek 400VA toroidal transformer....

Looks good Anand. How does it sound?

poseidonsvoice

  • Full Member
  • Posts: 3478
  • Science is not a democracy - Earl Geddes
    • 2 channel/7 channel setup
Re: What equipment have you built recently?
« Reply #105 on: 25 Nov 2010, 03:49 pm »
Looks good Anand. How does it sound?

My review will come soon enough probably in the Critics section of the forum.

Anand.

jtwrace

Re: What equipment have you built recently?
« Reply #106 on: 25 Nov 2010, 06:15 pm »
Nice jop Anand.   :thumb:

Are those the new caps?

poseidonsvoice

  • Full Member
  • Posts: 3478
  • Science is not a democracy - Earl Geddes
    • 2 channel/7 channel setup
Re: What equipment have you built recently?
« Reply #107 on: 26 Nov 2010, 01:35 pm »
Nice jop Anand.   :thumb:

Are those the new caps?

Yup Mundorf electrolytics.

Anand.

DougSmith

  • Jr. Member
  • Posts: 158
  • What will the next hundred years bring?
Re: What equipment have you built recently?
« Reply #108 on: 26 Nov 2010, 02:05 pm »
What voltage does the PS provide?

poseidonsvoice

  • Full Member
  • Posts: 3478
  • Science is not a democracy - Earl Geddes
    • 2 channel/7 channel setup
Re: What equipment have you built recently?
« Reply #109 on: 26 Nov 2010, 04:17 pm »
I measured 44.9 to 45 V DC. Recommended DC voltage for the SDS 254 I recall was between 40-50 V DC per Tom. The rectifiers themselves are On Semi MUR3060 types (Hexfred) and are rated for 15A each! They are a 3pin TO-247 type. I bought them in bulk last year so I got a great price.



Anand.

planet10

  • Industry Participant
  • Posts: 1411
  • Frugal-phile (tm)
    • planet10-hifi
Re: What equipment have you built recently?
« Reply #110 on: 27 Nov 2010, 07:54 am »
Classic Golden Ratio Mar-Ken12 with Mark Audio based Alpair12eN.



dave

Guy 13

Re: What equipment have you built recently?
« Reply #111 on: 27 Nov 2010, 10:44 am »
Classic Golden Ratio Mar-Ken12 with Mark Audio based Alpair12eN.



dave
Hi Dave.
Those yellow/green half spheres that we see on your picture, are those tennis balls cut in half and use as dampers?
Guy 13

TrungT

Re: What equipment have you built recently?
« Reply #112 on: 28 Nov 2010, 07:31 am »
Just finished Dodd Buffer  :thumb:





More detail here:
http://www.audiocircle.com/index.php?topic=79766.600

sts9fan

Re: What equipment have you built recently?
« Reply #113 on: 27 Dec 2010, 03:46 pm »
Just finished a pair of double mouth horns.
http://www.audiocircle.com/index.php?topic=89599.new#new

poseidonsvoice

  • Full Member
  • Posts: 3478
  • Science is not a democracy - Earl Geddes
    • 2 channel/7 channel setup
Re: What equipment have you built recently?
« Reply #114 on: 5 Jan 2011, 04:38 am »
Poseidon's Voice Sabre 32S digital analog converter - fully differential outputs.



The front panel is black anodized and comes with the enclosure - from DIY Hifi Supply, it was fully engraved and infilled using Front Panel Express software. The graphics of the Twisted Pear and Buffalo were imported into Corel Draw, modified for increased resolution and then exported to FPE.




This is the rear panel. Pretty self explanatory. IEC is a Furutech. Switch is from Radio Shack. Vampire RCA posts and Neutrik XLR's. Digital input is WBT RCA/75 ohms. The rear isn't engraved because it is a painted black aluminum, not anodized in other words.




Inside full view. Pretty classical layout. Keep AC components on one side and DC on other. You will see that a good 75% of this enclosure is occupied with power supply components.




Felix IEC filter as detailed elsewhere on this site. It's now a permanent part of my builds.



Hammond dual bobbin/split bobbin transformers, eliminates the need for an electrostatic shield between the primary and secondaries. Also provides for some high frequency filtering from the AC line. One 1A transformer for each of the three supplies (digital, positive analog, negative analog). Each transformer is carefully placed 90 degrees to the other to minimize hum. All AC wiring is twisted.




These are the 3 Peter Daniel CRC supplies. Each capacitor is a 15,000 uf Mundorf electrolytic. The diodes are MUR 3060 three pin, hexfred technology.




Paul Hynes shunt regulators. One for each supply. Ensures nearly complete isolation. I could've gone further and designed in separate analog supplies for each phase/channel! No space though.




The Twisted Pear Buffalo 32S board. Has its own onboard IVY II analog output board with relays so you don't hear a 'pop' from your speakers when you turn the dac off. The output voltage is set at 2V rms (balanced output) by Shinkoh Tantalum resistors. Matched to 1%. The unbalanced/RCA output is 1V rms.

Descriptions/details to follow.

Questions/Criticisms welcome.

Anand.
« Last Edit: 21 Oct 2013, 03:23 pm by poseidonsvoice »

jtsnead

  • Full Member
  • Posts: 827
  • Everybody jumpin' out of they mind
Re: What equipment have you built recently?
« Reply #115 on: 5 Jan 2011, 04:57 am »
NICE! Can I Have One!

jtwrace

Re: What equipment have you built recently?
« Reply #116 on: 5 Jan 2011, 04:59 pm »
NICE! Can I Have One!

It also sounds good too!  I'm hoping he does a tube output version sometime. 

dwr

Re: What equipment have you built recently?
« Reply #117 on: 5 Jan 2011, 05:04 pm »
Wow is all I can say, very very impressive.

Dan

rklein

  • Full Member
  • Posts: 1091
  • My finest audio piece ever!!
Re: What equipment have you built recently?
« Reply #118 on: 5 Jan 2011, 05:26 pm »
Anand:

Wow!  :o

Very nice build 8).  I have wanted for the longest time now to build a Buffalo DAC complete with the PH regs.  But with work and family commitments, I finally just went out and bought an EE DAC.  I'm sure your Buffalo sounds wonderful.

Congrats,

Randy

TrungT

Re: What equipment have you built recently?
« Reply #119 on: 9 Jan 2011, 05:49 am »
Borbely headphone amp. Sound awesome  :thumb: