DIY Audio Projects Photo Gallery
 NEW    Bruce Heran outlines the details and construction of his simple DIY 6DJ8 (ECC88) Tube Hi-Fi Headphone Amplifier Project.

DIY Audio Projects Photo Gallery


[ Gallery Home | Upload Photo | Recent Uploads | Most Viewed | Search ]


Spin-Clean-Record-Washer-System-MKII.jpg
Spin-Clean-Record-Washer-System-MKII.jpgSpin-Clean Record Washer System (Mk II) Kit Contents1259 viewsHere are the contents of the new Spin-Clean Record Washer System (Mk II) which is available for $80US. We have completed a full review of the Spin-Clean LP Record cleaning system. The Spin-Clean record cleaner is fully manual and does a very thorough job of cleaning your records.

See the Spin-Clean Record Washer System (Mk II) review for more information about the Spin-Clean.

If you have any questions about the Spin-Clean, you can ask them in the Spin-Clean LP Record Cleaning System (Mk II) thread on the forum.
Lawrence-Audio-Cello-Violin-Speakers.jpg
Lawrence-Audio-Cello-Violin-Speakers.jpgViolin and Cello Loudspeakers by Lawrence Audio1533 viewsThe Violin (outside) and Cello (inside) loudspeaker by Lawrence Audio on display at CES 2012. The uniquely shaped speaker look as good as they sound. The Violin speakers retail for $7500 while the Cello speakers are $20,000. For more details see the Cello Speakers - Lawrence Audio - CES 2012 post on our blog
Voxativ-Ampeggio-Back-Loaded-Horn-Speaker.jpg
Voxativ-Ampeggio-Back-Loaded-Horn-Speaker.jpgVoxativ Ampeggio Back Loaded Horn Speaker1965 viewsThe Voxativ Ampeggio Back Loaded Horn Speaker on display at the 2011 Salon Son & Image show.

The Ampeggio uses the Voxativ AC-3X and the sensitivity is 101 dB / 1w / 1m.

For more information see the Voxativ Ampeggio Horn Speakers - SSI 2011 show report.
Nagra-300i-300B-Integrated-Amplifier.jpg
Nagra-300i-300B-Integrated-Amplifier.jpgNagra 300i Integrated Tube Amplifier (300B)2180 viewsThe new Nagra 300i Integrated 300B Tube Amplifier on display at the 2011 Salon Son & Image show.

The integrated amplifier uses four JJ 300B directly heated triodes in a push-pull configuration in class-A operation. Output power is 20Wpc.
Audio-Note-Jinro-Integrated-211-Tube-Amplifier.jpg
Audio-Note-Jinro-Integrated-211-Tube-Amplifier.jpgAudio Note Jinro Integrated Tube Amp (SE 211)2050 viewsAudio Note Jinro Integrated Tube Amplifier on display at the 2011 Salon Son & Image show in Montreal.

Tubes: 2 x 5R4WGB, 2 x 211, 1 x ECC82 (or 5814a), 1 x 7044 (or 5687).

Power: 18Wpc into 8ohm @ 5% THD.
Weight: 85lbs
Cost: $26,500
Ayon-Triton-KT88-Tube-Amplifier.jpg
Ayon-Triton-KT88-Tube-Amplifier.jpgAyon Triton KT88 Tube Amplifier1770 viewsAn Ayon Triton KT88 Tube Amplifier on display at the 2011 Salon Son & Image show.

8 x KT88 and 6 x 12AU7. The amp is switchable between Class-A Operation Triode (80W) or Pentode (125W) mode.

For more coverage from the hi-fi audio show see the Salon Son & Image 2011 show coverage thread on the forum.
lafleuraudio-X2-speaker.jpg
lafleuraudio-X2-speaker.jpgLafleurAudio X2 Speaker1416 viewsThe LafleurAudio X2 Speaker on display at the 2011 Salon Son & Image show.

The speakers use a heavily braced curved speaker enclosure in a 2.5 way design and the total weight is 55 lbs each. The nominal impedance is 4 ohms, sensitivity is 90dB and the frequency response is noted at 45Hz to 20kHz.

For more coverage from the show, Salon Son & Image 2011 show coverage thread.
Specimen-Little-Horn-Speakers-with-Fostex-FE108E-Sigma.jpg
Specimen-Little-Horn-Speakers-with-Fostex-FE108E-Sigma.jpgLittle Horn Speakers with Fostex FE108E Sigma Drivers1365 viewsThe Little Horn Speakers produced by Specimen Products on display at Salon Son & Image 2011. The Little Horn Speakers use the Fostex FE108E Sigma driver.

For more information about the Little Horn Speakers, see our coverage from SSI 2011: Specimen Products Little Horn Speakers.
Orangutan-O-96-Oscar-2-way-Speakers.jpg
Orangutan-O-96-Oscar-2-way-Speakers.jpgOrangutan O/96 Highly Sensitive Speakers1394 viewsThe Orangutan O/96 High Sensitivity Speakers on display at the 2011 Salon Son & Image show.

For more information, see our show coverage: Orangutan O/96 High Sensitivity Speakers.
SAR-Labs-STA80-KT88-PP-Tube-Amp.jpg
SAR-Labs-STA80-KT88-PP-Tube-Amp.jpgSAR Labs STA80 KT88 Tube Amp2041 viewsShot of a Scientific Audio Research Labs (SAR Labs) STA80 tube amplifier over at Fred's place (April 2010). The tube compliment was 12AT7, 12BH7 (I think) and JJ KT88 Blue Glass tubes. About 55-65W and very nice sound.
OddWatt-KT88-Push-Pull-Tube-Amp-Kit.jpg
OddWatt-KT88-Push-Pull-Tube-Amp-Kit.jpgOddWatt / OddBlock KT88 Push-Pull Tube Amp Kit2373 viewsA finished OddWatt / OddBlock KT88 Push-Pull Tube Amp Kit. This KT88 tube amplifier kit can be purchased from OddWattAudio.com. The tube amp kit comes with a NOS JAN Philips Branded 5751 (US made) preamp tube. The output tubes are and new production Genalex Gold Lion branded KT88 tubes (Russian made). As you can see, the power and audio output transformers are from Edcor.

Complete DIY instructions to build the similar OddBlocks 12SL7 SRPP / KT88 SIPP (Push-Pull) Tube Amplifier are also available.
OddWatt-KT77-Push-Pull-Tube-Amp-Kit.jpg
OddWatt-KT77-Push-Pull-Tube-Amp-Kit.jpgOddWatt / OddBlocks KT77 Push-Pull Tube Amp Kit2047 viewsA photograph of a finished OddWatt / OddBlock KT77 Push-Pull Tube Amplifier Kit. The KT77 tube amp kit is available from OddWattAudio.com. The kit comes with a NOS JAN Philips Branded 5751 (US made) and new production JJ branded KT77 tubes (Russian made).

Complete instructions to build a similar DIY version of the amp are available on the Oddwatt 225 - 6SL7 SRPP / KT77 SIPP (Push-Pull) Tube Amplifier project page.
PreProduction-Odd-Block-Tube-Amps.jpg
PreProduction-Odd-Block-Tube-Amps.jpgOddWatt / OddBlock KT88 Push-Pull Tube Amp Kit2399 viewsThis is a pre-production photo of the OddWatt / OddBlock KT88 Push-Pull Tube Amplifier kits that are available from OddWattAudio.com.

Full details of the tube amplifier topology along with complete DIY instructions are available on the 12SL7 SRPP / KT88 SIPP (Push-Pull) DIY Tube Amplifier project page.
Sony-CDP-315-Modifications-and-Upgrades.jpg
Sony-CDP-315-Modifications-and-Upgrades.jpgSony CDP-315 Modifications and Upgrades2696 viewsOK, so I also got a Sony CDP-315 single disc player and decided to try modding it. This one was much harder as It had a pair of SMD opamps and replacing them with a pair of 8 pin DIP sockets wasn't easy, but I managed to do it just fine.

So, here are the mods:

1. Installed 0.15uF X2 power filter cap
2. Intsalled a pair of ferrite chokes (on on power cord and another on the line out flat cable)
3. Replaced original opamps with NE5532 and later with Burr-Brown OPA2134 (2134s do sound better).
4. Replaced electrolytic coupling caps with a pair of Jantzens 4.7uF/630V.
5. Replaced RCAs connectors with gold plated ones.

The increase in performance was great too, but nos as good as my ONKYO DX-C380 CDP. I plan on replacing all supply and decoupling caps with Rubycon ZLs to improve it further.

Bernardo
ONKYO-DX-C380-CDP-Modifications.jpg
ONKYO-DX-C380-CDP-Modifications.jpgONKYO DX-C380 CDP Modifications2707 viewsOk, so I got this Onkyo CD Player and noticed that it was really worth modding.
Its a 6 CD player and its well constructed. It also uses the very common Sony KSS-213 pickup (the same one the Marantz 5001 and 5003 uses).
Since I had just got some Elna Cerafine caps, I decided to try them in. Here's what I did:

1- Replaced all coupling caps with 100uF/50V Elna Cerafines
2- Replaced all PS and decoupling caps with Ultra-Low ESR Rubycon ZLs.
3- Added a line supply Cap (1uF X2 Rated)
4- Added a power input choke.
5- Bypassed supply caps with smaller (1/10th capacitance) caps
6- Replaced JRC2968 OPAMP with Burr-Brown OPA2134

The end result was amazing. This is now a truly Hi-End player. It just amazing how good those Elna Cerafines sound int this kind of application. I was willing to try some Black Gates in place, but these Cerafines sound so good in there that I just gave up.

Bernardo
Sansui-SR-1050C-Fully-Manual-Turntable.jpg
Sansui-SR-1050C-Fully-Manual-Turntable.jpgSansui SR-1050C Turntable3926 viewsA Sansui SR-1050C, fully manual phono turntable.

I did the following mods to it:

1- Installed a new Shure m350ed cartridge
2- Replaced the belt
3- Added a belt strength regulator screw (the original design didnt have it)
4- Replaced the RCAs with gols plated ones
5- Replaced the Saprk Killer cap with X2 cap.
6- Installed ferrite chokes on audio and power cable.
7- Installed an EMI-RFI filter

It sounds and works great now.

Bernardo
CSS-FR125SR-Fullrange-Speaker-Drivers.jpg
CSS-FR125SR-Fullrange-Speaker-Drivers.jpgCSS FR125SR Fullrange Speaker Drivers3486 viewsA pair of CSS FR125SR drivers by Creative Sound Solutions. These are nice looking drivers that unfortunately have a few problems. See the CSS FR125SR fullrange driver page for more information and Thiele / Small parameter measurements.
Pro-Ject-Phono-Box-SE.jpg
Pro-Ject-Phono-Box-SE.jpgPro-Ject Phono Box SE Preamplifier6742 viewsInside view a Pro-Ject Phono Box SE Preamplifier. The op-amps are two TL071CP and four JRC5137G. The power supply is regulated using 78L15 voltage regulators. Nothing stunning in the box. I like my DIY Moving Magnet Phono Preamplifier Kit better!!
Fostex-GK120-Speakers-with-F120A.jpg
Fostex-GK120-Speakers-with-F120A.jpgFostex GK120 Speakers with F120A3882 viewsHello - this is a hard to locate set of speakers! The cabinet is a rare speaker enclosure from Fostex - model GK120. The speaker in each cabinet is the famous F120A. The set operates flawlessly - both aesthetically as well as acoustically. The wood (though I do not know the type) is solid and very nice. The enclosures themselves are made of a see-through Lucite and are definitely a conversion piece.
SV101939.JPG
SV101939.JPGVintage Sony TAN-5550 and TAE-54503014 viewsPat from the Melbourne Audio Club picked up these very nice Sony VFET preamp and power amp combo for a song. The power amp uses a JFET front end but derives its power from an array of VFETs to produce 65W into 8ohms. The preamp has more filters, dual tone controls, inputs and outputs than you can shake a power cord at.

This combo drove my moddified Tandy Minimus 77s with a replacement Al/Mg 4" HiVi woofer/mid at good volume with a very controlled solid bass sound I would only have expected from much bigger speakers. Mids were warm and treble mellow. The Sony represents a great collectors piece.
33 files on 2 page(s) 1


DIY Tube Projects :: DIY Tube Amp Kits :: DIY Speaker Projects :: DIY Solid State Projects :: DIY IC / Opamp Projects :: DIY Phono Projects :: DIY Cable Projects :: HI-Fi Audio Schematics
© diyAudioProjects.com - Terms of Service - Privacy Policy