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


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Category Albums Files
DIY Audio ProjectsShow off your Do It Yourself (DIY) Audio Projects.
8 605
Vacuum Tube (Valve) Audio Projects


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DIY Vacuum Tube (valve) Projects such as Tube Amplifiers and Tube Preamplifiers.

228 files, last one added on Oct 03, 2014
Album viewed 20 times

Speaker and Subwoofer Projects


Fostex-FX120-Bass-Reflex.jpg

A photo gallery to show off your DIY Loudspeaker and Subwoofer projects and kits.

135 files, last one added on Sep 25, 2014
Album viewed 22 times

Chipamp, Gainclone, T-Amp and Op-amp Projects


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DIY audio projects that are based around a single integrated semiconductor chip or an opamp like Gainclone, Chipamp or T-Amp projects.

72 files, last one added on Jul 20, 2014
Album viewed 11 times

Solid State Audio Projects


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DIY Audio Projects that are based around discrete (solid state) components, such as transistors, MOSFETS, J-FETS ...

56 files, last one added on Jul 04, 2013
Album viewed 11 times

Audio Cable Projects


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DIY Audio Cable Projects - Interconnect (RCA) Cables, Speaker Cables and Power (mains) Cables.

11 files, last one added on May 19, 2009
Album viewed 5 times

Other DIY Audio Projects


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Photographs of DIY Audio Projects that do not fall into any of the previous categories such as DIY turntables, power supplies, pictures of your listening room setup ....

19 files, last one added on Jun 16, 2013
Album viewed 15 times

S-5 Electronics Tube Amplifier Kits


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A photo gallery of the various inexpensive Tube Amplifier Kits from S-5 Electronics that have been built by DIYers. The kits include the K-8LS, K-12, K-16 and the similar K-502.

51 files, last one added on Sep 03, 2013
Album viewed 11 times

Commercial Hi-Fi Audio


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Photos of Commercial Hi-Fi Audio Gear, Components and Products.

33 files, last one added on May 15, 2012
Album viewed 5 times

8 albums on 1 page(s)

605 files in 8 albums and 1 categories with 5 comments viewed 2,410,994 times

Random files
MAW-10-DIY-Subwoofer-Jim.jpg
MAW-10-DIY-Subwoofer-Jim.jpgJim's MAW-10 DIY Subwoofer 20094 viewsJim's build of the DIY 10" Ported Subwoofer Project.
PradaInsideBack.jpg
PradaInsideBack.jpgPrada OPA627 Preamplifier - inside3724 viewsI was inspired to build this preamp by learning of the Burr-Brown OPA627 (very high performance OP amp) and access to my daughter's Prada phone, heavy cardboard, container. The preamplifier modules are constructed on vero proto boards. Only component wire was used here. The input caps are Cornell Dubilier (white) and Solen (black) was used for the output). Metal film resistors, all pure silver hookup wire, gold RCAs jack and WBT silver solder make this a quality build. The box is lined with bitumanised aluminum foil and an Alps Blue Velvet attenuator and 4oz solid brass black knob add to this build. Four 9V lithium batteries (1200Ah each) drive the unit.
DIY-ECC802S-12AU7-ECC82-Vacuum-Tube-SRPP-Preamplifier.jpg
DIY-ECC802S-12AU7-ECC82-Vacuum-Tube-SRPP-Preamplifier.jpgDIY ECC802S Tube SRPP Preamplifier1612 viewsThis fantastic looking piece is a ForeWatt ECC802S tube SRPP preamplifier by Bruce. The gain of the preamp can be set at 7 or 11. 12AU7 and ECC82 tubes can also be used. The power supply is solid state.

For full details see the ForeWatt DIY ECC802S (12AU7 / ECC82) Vacuum Tube SRPP Preamp project page.
Oatley-Electronics-K272B-prototype.jpg
Oatley-Electronics-K272B-prototype.jpgOatley Electronics K272B prototype1270 viewsSoon to be released Oatley Electronics K272B prototype. I recently made two CMoy style, OPA2134 based, HP amps but now prefer the better sounding, harmonically rich, K272B build. Two 9V batteries are used in parallel to prolong battery life and switching phone jacks, power switch and “on” LED ensures it is difficult to accidentally leave the amp on. The enclosure is impact resistant ABS which is heavy Al foil lined. Volume control is via your player and the “6418-B” will drive low impedance phones. Where the CMoy style, chip based, HP amps are clean, clear, bright and clinical, the “6418-B” has a much richer, more harmonically complex sound and a smoother all over delivery. Really it all gets down to taste. I would recommend building the K272B when released around early February 2013. I suggest you upgrade the Oatley passive parts and chip socket to better quality parts.

For more info, see the
Oatley K272B JAN6418 headphone amp and preamp thread in the forum.

Mark Houston – retro-thermionic


Last additions
SE-6V6-Amplifier-after-Lacewood.jpg
SE-6V6-Amplifier-after-Lacewood.jpgCopy of Matt's SE 6V6 Lacewood amplifier62 viewsHello,

This is my copy of Matt’s (Suncalc) single-ended 6V6 Lacewood amplifier which is actually made from Sri-Lankan Satinwood, Padauk and brass.

Keith Graham Cheltenham, UK.
Oct 03, 2014
Beyma-12XA30Nd-Speaker.jpg
Beyma-12XA30Nd-Speaker.jpgBeyma 12XA30Nd Speaker99 viewsThese are the most expensive speakers I have made. Drivers are Beyma 12” with a titanium\polyester concentric 2” dome – 12XA30Nd. Efficiency is 98db\1W\1M for the woofer section and 105db for the tweeter. The drivers can handle 700W! Box is 33ltr and heavily braced with 4” rear port. Finish is heavily stippled and applied with a roller. Xover is at 2KHz. Bass is not super low and requires a subwoofer for better bass. Speakers work extremely well with my 0.5W 1920s tubed amp. See the forum thread Beyma, a Spanish coaxial driver for more information.

Mark Houston – retro-thermionic
Sep 25, 2014
Gobo-LM1875-Stereo-Amplifier-Kit.jpg
Gobo-LM1875-Stereo-Amplifier-Kit.jpgGobo LM1875 Stereo Amplifier Kit182 viewsThe Gobo Stereo Amplifier kit is a class-AB chip amp kit based around the LM1875 IC. This is a complete amp kit that includes all the necessary parts and enclosure to build a stereo amplifier. The LM1875 amp kit comes with audio-grade capacitors and toroidal transformer. The Gobo amplifier kit is easy to build, looks and sounds great. The amplifier kit is well suited to first time amp builders.

For full details, see our review of the Gobo LM1875 Stereo Amplifier Kit
Jul 20, 2014
6SN7-6V6-SE-Black-Lace.jpg
6SN7-6V6-SE-Black-Lace.jpgBlack Lace - SE 6V6 Amplifier236 views“Black Lace” - an all Australian tube amplifier with tubes from the 60’s. Miniwatt: 6V6 black glass, 6SN7 and 5U4. Old school build with PIO caps, solder from the 70’s with copper and carbon film resistors. See the forum thread Black Lace - 6V6 power amp, old school for more information.

Mark Houston – retro-thermionic
Jun 20, 2014


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