| Random files - DIY Audio Projects |
Jordan-JX92S-Transmission-Line-Speaker.jpgDIY T-Line Speaker with Jordan JX92S10730 viewsThis is a build of GM's Transmission Line for the Jordan JX92S. More information is available at the Tobler-ONE Jordan JX92S MLTL Speaker Project page.
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S5-Electronics-K12G-Tube-Amp-Kit-Schematic~2.pngS-5 Electronics K-12G Tube Amplifier Schematic15804 viewsSchematic for the S-5 Electronics K-12G Tube Amplifier Kit. This is a scan of the schematics that comes with the kit. The K-12G kit uses 10GV8 vacuum tubes.
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K-12G-Tube-Amp-Kit-S5-Electronics.jpgS5 Electronics K-12G Tube Amplifier Kit6773 viewsA completed K-12G Tube Amplifier Kit by Jason Sartor from Temple Arizona. The kit uses 10GV8 tubes and is housed in a nice looking DIY enclosure.
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Diaphony8~0.jpg"Diaphony's" An open baffle design7066 views"Diaphonys". A Dipole with a 10" separation between cabinets (21â€w *18â€h*6â€upper cab) to direct reflected waves to the listener. Low distortion driver choices with a SB Acoustics 29RDC-0004 for highs, Usher Audio 8945A for mids, and an Eminence Alpha15A for lows (lower cab same as the upper but extened to 12†depth). These drivers work together nicely together with a 2nd order LR with the low end of the Usher rolling off naturally. Upper cab with a 8" cardboard tube to direct waves from the Usher from the back of the 6" wide speaker box depth to the reflected surface with minimal re-reflection to the back of the driver. I used a 6" diameter plywood rounded baffle ends to reduce diffraction losses and to improve off axis response. Claity SA Caps where important, Solen Fast Caps else where. Goertz inductors with Madisound Sledgehammer for the Alpha 15A. Balic Birch construction with Walnut veneer. The sound? I knew immediately when the SB and Usher were on just a 22" wide by 60" tall board I had made good choices. The cleanest mid I have ever heard. I'm sure there are better ones, but not by much. Voices that were unintelligible on other systems of recordings I know well became understandable - embarrassingly so. A wood block sounds like a real live wood block. I primarily used various tracks off Tania Libertad’s album “Costa Negra and Pacifika’s “Asuncion†for listening tests and crossover tweaking – two extremely well tracked and mastered albums to say nothing of the voices and talent. While listening to track 12 of Libertad’s album “Yo Venco A Ofrecer Mi Corazonâ€, in my listening area, it becomes to difficult point to speaker placement without visual cues. The Diaphony’s are large, they do need to be about 4 feet away from a back and side wall seem to be the only distracters. Many compliments at the recent Northern California DIY Audio meet outside of Sacrameno, CA.
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| Last additions - DIY Audio Projects |
DIY-6AS7-Tube-Headphone-Amplifier.jpgDIY 6AS7 Tube Headphone Amplifier6787 viewsMy name is Laurie. I have been building and DIYing for 45 years now and happily will never stop. This tube headphone amp is from a thread in the Form.
The power connecting cable comes from a European Travel Iron I bought for $1.00 at junk shop. (220v/6A) They will be shortened when I find a perch for the amp and me. The sound is better than my ears have ever heard so I will be keeping this one for my retirement entertainment should such a time ever come. Wink It has worked from day one and continues to please me every time it is turned on. The tubes are JJ ECC88 / 6AS7 with a 5V4 rectifier tube. To spite it's small size the parts are quite easily accessed. I over built most components so it will outlast me I fear. The only change I anticipate may be the 6AS7 to a bottle neck glass to match the rectifier tube. I do have and use a 6080 tube, but i can tell no difference in sound. It will take more then a few hours of listening to get my ears better tuned.Feb 28, 2017
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4-channel-400W-amplifier.jpg 4 channel, 400 W amplifier5419 viewsThis 4-channel 400 W amplifier uses Hypex UcD400HG modules together with the corresponding power supply.
The whole is mounted inside a Galaxy 330 x 230 x 80 case.
For building instructions, have a look at this project's wiki.
Two such amplifiers has been working for over 2 years in my lounge, driving Linn Komponent 110 loudspeakers which each have 4 speaker inputs.
Francois Corthay - Switzerland
Project Page: 4 channel 400 W amplifier using Hypex UcD400HG modules Dec 20, 2015
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E88CC-SV83-SET-Amplifiers.jpgDual SV83 SET Amplifiers5584 viewsA mirrored pair of SET amplifiers, presently being used in bridged mode. All P2P construction using silver solder. I included a "Hazen grid" capacitor and input tube bias change switch. The single mA meter displays individual output tube bias current with a Left/Right switch. Edcor XPRW178 power transformer and GXSE10-6-8K output transformers. Upgraded caps to Jantzen Audio 1200V Z-Superior. Upgraded resistors to PRP PR9372 Audio for metal film and TAKMAN REX for carbon film. ALPS Blue 100K attenuator. The power supply uses a RCA 5U4GB rectifier and Hammond 156R choke. Matched pairs of Svetlana SV83 for power and JJ E88CC for the input tube.
Billy Whiten - Georgia, USADec 20, 2015
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6V6-Push-Pull-Amplifier.jpgPush-Pull (PP) 6V6GT Tube Amplifier4603 viewsThis 6V6 amp was built following the DIY Push-Pull (PP) 6V6 / 6V6GT Tube Amplifier Schematic. Power Supply transformer and Output transformers are handmade in Argentina by NavasBaccino. I'd like to thank Brad S. for the help. The sound is amazing and clear, free of distortion.
Gabriel Rofrano, ARGENTINA
Video link
Dec 20, 2015
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