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Seas-CA26RE4X-sealed-subwoofer.jpgSeas CA26RE4X 10-inch Sealed Subwoofer6866 viewsSeas CA26RE4X 10" subwoofer in a sealed 1.27 cubic ft cabinet. I used 3/4" maple plywood with mitered, biscuit-joined seams. The driver port was cut, then the lip routed, then scabs glued in with Gorilla Glue, then drilled and fitted with threaded caps. The rear panel was sealed with strips cut from a bicycle innertube as gasket material. Originally wanted to stain black black, but I think the natural wood grain really looks good.
Mark A.
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Diaphony8~0.jpg"Diaphony's" An open baffle design6850 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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Swans-Tempus-HiVi-3-Way-Tower-Speakers.jpgSwans Tempus and HiVi 3-Way Tower Speakers6843 viewsDIY Hi-Vi Research Swans Tempus Bookshelf Speakers sitting on Hi-Vi 3-Way Tower Loudspeakers that I built a few months back.
See Hi-Vi Research F6 / TN28 Swans Tempus Bookshelf Speakers for an overview and the speaker box plans. Also my build log has more photos and construction notes.
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Hi-Vi-Research-Swans-Tempus-Bookshelf-Speakers.JPGHi-Vi Research Swans Tempus Bookshelf Speakers6842 viewsRear view of the Hi-Vi Research Swans Tempus Bookshelf Speakers. I built two pairs of the Tempus and the cost was about $725/pair. I think that is a very fair price for speakers of that quality.
See Hi-Vi Research F6 / TN28 Swans Tempus Bookshelf Speakers for the speaker box enclosure plan. Also my build log has more information.
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HiVi-SP10-Subwoofers.jpgHiVi SP10 Subwoofers6838 viewsA pair of subwoofers built by Daniel's following Adam's DIY HiVi SP10 Subwoofer Project. Full details of Daniel's build are available at his webpage.
In the background is are the DIY Hi-Vi 3-Way Tower Loudspeakers also built by Daniel.
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K-12M-Tube-Amp-Test-Listen.jpgK-12M Tube Amp - First Listen6829 viewsThis is my first listen with a K-12M Tube Amp Kit. The source is a NAD C542 cd player, with 3 way 12" 92dB efficient speakers and Transparent 200 interconnect cables. A cool way to get into valve amps. I lost 1000 hours here!
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1.jpgK-16LM 16W Mono Tube Amp Kit6827 viewsThis is the K-16LM mono 16W tube amplifier kit, with Russian PIO capacitors and carbon composite resistors. This Mono Integrated Tube Amplifier utilizes a 5670 triode and 6005 pentode tubes push-pull. It has been converted for use as a guitar amp.
Here are photographs of the guitar amplifier that was built with with tube amp kit.
DIY Guitar Amplifier - Inside
DIY Guitar Amplifier
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S-5-Electronics-K-12G-Tube-Amp-Kit-rear.jpgS-5 Electronics K-12G Tube Amp Kit - rear view6799 viewsRear view of DIY enclosure for a S-5 Electronics K-12G Tube Amp Kit.
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SV100843~0.JPGLundahl transformer step-up project for MM cartridge.6794 viewsI recently upgraded my Raga Planar 3 with a Grado wood bodied Platinum reference cartridge. But output was low from the Pro-Ject SE phono preamp. LL1550 trannies supplied by K & K Audio and printed circuit boards allowed me to build a step-up kit in the wooden box the Grado cartridge came in. Compact and beautiful! For more information, see DIY Lundahl MM Phono Step-Up Transformers.
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DIY-Turntable.jpgDIY Turntable with Dual 701 Direct Drive Motor6793 viewsThe DIY turntable is built around the drive motor assembly from a Dual 701 record player. The plinth is built up by stacking plywood pieces. The tonearm is made from scratch following a complicated magnetically stabilized pick-up design.
For full project details see the DIY Turntable project page.
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Jordan-JX92S-Transmission-Line-Loudspeaker_.jpgJordan JX92S in Transmission Line Loudspeaker Enclosure6790 viewsJordan JX92S Fullrange Driver in a Transmission-Line Loudspeaker enclosure. The veneers is Yew Wood with a Tung Oil finish. The speaker box was constructed using 25 mm thick Baltic Birch plywood.
Related Project: DIY Jordan JX92S ML-TL Speaker
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MicPreCct.JPGInside the diy microphone preamp6751 viewsThe cct. brd. for the ESP low noise two transistor mic preamp attaches to the lid of the this solid die-cast aluminum case. Batteries also are mounted on the cct. brd. This preamp is free from hiss and all noise and is the perfect partner for high quality low output mics. A more compact version could be constructed using electrolytic caps and AAA batteries (12V). But the quality would suffer a little with the inferior caps.
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Fostex-FX120-Fullrange-Bass-Reflex-Speaker.jpgFostex FX120 Recommended Bass Reflex Enclosure6740 viewsHere the Fostex FX120 fullrange driver is used in the Recommended bass Reflex Enclosure design provided by Fostex. See the Fostex Recommended Bass Reflex Type Enclosure Plans for the box dimensions.
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Jordan-JX92S-Sealed-Speaker.jpgJordan JX92S in Sealed Speaker Box6728 viewsThe Jordan JX92S Fullrange transducer in a sealed (acoustic suspension) enclosure. The box volume is 5.2L and a camphor burl veneer was used for the finish. I use these with no baffle step correction whatsoever and are mated with an 8" subwoofer from av123.
I am thinking of adding the Aurum Cantis ribbon tweeter to these
Related Project: DIY Jordan JX92S Sealed Bookshelf Speakers
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TDA2003-Chip-Amplifier-Visaton-FRS-8-M-Sphere-Speakers.jpgTDA2003 Chip Amplifier with Visaton FRS 8 M Sphere Speakers6716 viewsDIY TDA2003 Chip Amplifier build in a wooden enclosure matched with a pair of Visaton FRS 8 M Speakers in a Sphere enclosure. This set of amp and speakers is used for a PC audio setup.
For more information, see the tda2003 chip amplifier and Visaton FRS 8 M sphere speakers thread on the forum.
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Diapony_sandOrion.jpgDiaphony' and Orion6705 views04/2010 Northern California DIY Audio meet
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K-12G-Tube-Amp-Top.jpgFinished K-12G Tube Amplifier Kit6683 viewsThis is Lofton's build of the S-5 Electronics K-12G Tube Amplifier Kit. Rather than use the supplied PCB, this build is done a turret board. Additional details and photographs for this build are available in the K-12G Tube Amp Kit Build Thoughts thread on the message forum.
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K-12M-Tube-Amp-Kit-Rear.jpgK-12M Tube Amp Kit6681 viewsThis is a rear view of my K-12M Tube Amp Kit which shows the gold RCA inputs and speaker binding posts.
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Nigel-K-12G-Tube-Amplifier-Kit-Build~1.jpgK-12G Tube Amplifier Kit Build6662 viewsNigel's build of a K-12G Tube Amplifier Kit.
For full details of Nigel's build, see his K-12G Tube Amp Kit Build thread.
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Tang-Band-D4-1-DIY-Back-Horn-Speaker-Kit.jpgTang Band D4-1 DIY Back Horn Speaker Kit6650 viewsThe fun and simple Tang Band D4-1 DIY Back Horn Speaker Kit. This little speaker kit comes complete with all the parts and tools required (minus a soldering iron). There is no cutting or finishing required (no saw dust or fumes!). The kit is very simple to build as it goes together just like ready-to-assemble furniture.
For a full review of this speaker kit, see: Tang Band D4-1 DIY Back Horn Speaker Kit.
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