5670 dual triode tube buffer (Demo)

An elegantly simple tube buffer using a dual triode 5670 tube.  WWII vintage working panel meter.  Real wood veneer accent on the front panel.
This tube buffer is meant to go between your source and your amp.  Assists in impedance matching and adds some triode tube magic to the signal.

Edison Lamp (Available)

Three candelabra size "Edison" bulbs grace this black textured 7.5"x7.5"x2" aluminum enclosure.
A 1940's vintage working Weston panel meter is encased for decoration.  The warm glow from 
this lamp can be compared to three candles.   A dimmer switch is located on the back, which allows variable amounts of brightness levels.  A vintage style toggle switch on the front controls power to the panel meter.  A one of a kind, handmade lamp.
$225 plus shipping.

The "Edison" TPA3116D2 (Available)

Make your office buddies jealous with this one of a kind amplifier that is as much art sculpture as it is audiophile amplifier.
Lighted sculpture that doubles as a desktop, one input, audiophile quality amplifier.
Edison style hairpin filament lightbulbs with variable dimming my means of the dimmer switch on the top of the amplifier.  (can be turned all the off with the same switch)
Chicken head knob on the left is the amplifier on/off.  Chicken head on the right is the volume control for the TPA3116D2.  35 Watts per channel.  Internal power supply from a high quality EI transformer.
Amplifier is equipped with a fuse and earth ground.  Includes a power cord.
$700 plus shipping.

"Monteverdi" TPA3116D2 with R Type Transformer (Sold to Joel J. of Troy, Michigan)

TPA3116D2 30 watts per channel.  R type transformer & highly regulated internal power supply circuitry.
Cardas solid copper binding posts.  Rean brand gold plated RCA connectors.  Rear mounted rotary switch.  (This amplifier can be left on as it uses tiny bits of electricity at idle)
Alps blue velvet volume potentiometer with large, machined aluminum knob.
Gorgeous sounding amp.

5670 Dual Triode Tube Buffered ESS3018K2M Sabre USB DAC (available)

HiFiMeDIY ESS3018K2M Sabre USB DAC mounted in a diecast chassis with a hammertone silver finish.  NOS GE JAN 5670W tube buffered analog output with volume control.
Audiophile quality, top mounted, shielded, toroidal transformer provides power to the tube buffer.  The DAC is separately powered by the USB.   Alps blue velvet volume pot allows this to be used as a volume control into a stand alone amplifier.   Volume can also be set to maximum when using with an integrated amplifier.
Amplifier is equipped with earth ground and fuse.  There are lots of reviews surrounding the HiFiMeDIY DAC's.  Imagine them with some triode tube magic mixed in!
$475 plus shipping

Beta 2 (Sold to Daniel H. of Portland, Oregon)

This amp has an expensive, hand wired, Dale resistor ladder stepped attenuator.
WWII vintage panel meter that functions when the unit is powered up.
Premium gold plated Dayton Audio binding posts and gold plated RCA connectors.

Beta Amp 1 with dual mono TPA3110D2 (Sold to Calvin P. of La Crosse, Wisconsin)

A few extra holes in the bottom plate as this amp was used to beta test a few different circuits.
Dual mono TPA3116D2 circuit boards.  8 watts per channel.  Dayton Audio premium nickel plated binding posts.  Alpha brand volume pot.
Working voltmeter.  Vintage style toggle switch and chicken head volume knob.
$165 plus shipping.

"Fender Tribute" TPA3116D2 Dual Mono amplifier (Sold to Sebastian B. of New York, NY)

A tribute to a legendary guitar maker based in California, USA.
Gorgeous metallic blue finish with genuine chrome plated Fender guitar neck plate and chrome plated Fender guitar knobs.
Insulated, gold plated binding posts.  Rean brand gold plated RCA connectors.
Alpha brand volume potentiometer and Alpha rotary power switch.
Neoprene isolated circuit boards and teflon coated solid copper wire throughout. 
Hand made, one of a kind, with sound that 50+ audiophiles have put their stamp of approval on. 

"Ukelele" TPA3116D2 (Sold to Randy G. of Kihei, Hawaii)

My first amp to make it to Hawaii.  In my haste to get this amplifier shipped out quickly, I neglected to get a photograph of it.  Thank you Randy, the owner of this amp for snapping a photo of it for the blog.  This amplifier was built with an Alps Blue Velvet volume pot.  "Blue/Black" TPA3116 circuit board.   Premium gold plated binding posts and no power switch at Randy's request.
Here is what Randy says about the sound paired with his Omega Super 7 MKII speakers:
"Love the amp, great definition, even at low volumes, low end is solid! My new main and only amp." 

"Art Pepper" Tribute TPA3116D2 Dual Input (Sold to Alton U. of Honolulu, Hawaii)

TPA3116D2 (YJ Blue/Black)
Two inputs selected with front panel mounted toggle switch.
Side mounted, vintage style, heavy duty toggle power switch.
Rean RCA connectors and high quality Connex brand binding posts.
Alpha brand volume pot with shielded copper input wire & teflon insulated copper output wire.
Gorgeous birdseye maple veneer on the faceplate with a faux bakelite knob.
Enclosure is 7.5"x7.5"x2.5"
Amplifier comes with an external power supply.
This amplifier is for sale at Caintuck Audio.   Visit their website at:

"Eric Dolphy" Dual Mono TPA3118 (Sold to Matt P. in Chicago, IL)

Dual mono with Alps Blue Velvet volume pot.  Premium solid brass, gold plated binding posts.
Rean gold plated RCA connectors.  Heavy gauge die-cast aluminum enclosure for maximum RFI & EMI blocking.  High purity copper, teflon insulated Kimber TCSS output wire and Teflon insulated twisted solid copper signal wiring.  WBT Silver solder.  Solid machined aluminum, powder coated volume knob.  As with all my amplifiers, the circuit board is supported on neoprene washers for vibration insulation.  3M bumpers on the bottom for additional chassis isolation.
Handmade to order by a fellow audiophile with a passion for music.
Comments from the new owner: The amp arrived Derek. Looks great and sounds even better! Pic attached.
Greater clarity, less harsh/glassy, and much more muscular/dynamic with my speakers

"Checkfield" TPA3116D2 (Sold to Richard K. of Las Vegas, NV)

"Blue/Black" TPA3116D2 circuit board.  15 watts per channel with the included power supply.  Connex brand gold plated, nylon insulated binding posts.
REAN brand RCA connectors.  Alps blue velvet volume pot.  Hammond die-cast aluminum enclosure with real exotic wood veneer.  Large, machined aluminum, powder coated volume knob.
Includes a 15V 4.3A power supply.
$225 plus $20 priority mail shipping.

"Dizzy" TPA3116 Dual Mono 3 input (Sold Robert P. of Staten Island, NY)

Loaded up with all the bells and whistles.  Dual Mono TPA3116 amp boards for up to 50 watts per channel.  Premium WBT style solid metal binding posts, three inputs with a boutique audiophile quality Goldpoint selector switch for maximum transparency.   Genuine Peavey guitar chrome plated, machined brass knobs.
Alps blue velvet volume control.  This amp includes a 24V 5A power supply.
Special note:  The volume control on this particular amp is situated on the left side.  The selector switch is on the right side.  This was done to facilitate a shorter signal path to these particular mono circuit boards.  If this is bothersome, this is not the amp for you.
$340 plus $20 priority mail shipping.

"Thelonious" TPA3116D2 Dual Mono (Sold to Ed M. of Woodstock, VT)

Dual Mono TPA3116D2.  Capable of 50 watts per channel.  The fleas have been hitting the gym and doing some serious power lifting.  Connex brand gold plated binding posts.  Rean RCA gold plated connectors, Hammond die-cast enclosure, real exotic wood veneer and vintage bakelite style "stove" knobs.
Rotary switch is on the left and the Alps Blue Velvet control is on the right.
Solid core high purity copper wiring throughout.
As with all of my amps, the circuit boards are supported and insulated from vibration by neoprene rubber pads. 3M rubber pads grace the bottom of the amp for additional vibration isolation.
$210 plus $20 priority mail shipping.

"Mingus" Dual Mono TPA3110D2 (Sold to Jeff T. of Beverly Hills, CA)

Dual TPA3110 mono circuit boards in a single chassis.  Some audiophiles still prefer the TPA3110 over the TPA3116.  It certainly is lovely sounding.  In the BTL configuration, the amp is capable of 30 watts per channel with a 24V power supply.  Around 15 watts per channel with included 12V power supply.
This build features a die-cast aluminum enclosure with excellent EMI & RFI blocking properties.  An Alps Blue Velvet volume pot has buttery smooth rotation.  Other features include, premium WBT style binding posts, gold plated Rean brand RCA inputs, textured black finish and real wood veneer on the front panel.  The rotary power switch and volume control are graced with vintage bakelite style knobs.
$230 plus $20 Priority Mail shipping.  Includes a power supply.

"Sonny Rollins" TPA3118D2 Dual Mono (Sold to Eric S. of Bonita Springs, FL)

Unique, hand made, Dual Mono TPA3118D2.  50 watts per channel.  Alpine white with black top and black bottom.  Die-cast aluminum enclosure for efficient RFI & EMI blocking.  When you hold this amplifier in your hands, it exudes hand made pride of craftsmanship and attention to detail.
Black powder coated solid machined aluminum volume knob. Premium gold plated binding posts.
Rean brand gold plated RCA connectors.  Heavy duty vintage style toggle switch on each side as each mono amp has it's own external power supply. Alps blue velvet volume pot.

"Renbourn" TPA3110 (Available at Caintuck Audio)

TPA3110  Approximately 3 watts into 8 ohms.  
Alpha volume pot.  Premium machined volume knob.  Vintage style toggle switch.
Textured black paint.  Premium machined aluminum volume knob. Audiophile grade wiring.  
Connex brand, gold plated binding posts.  REAN brand gold plated RCA connectors.  Includes external power supply.
In stock at

"Omega Tour" Amp TPA3116D2 (Sold to Michael T. of Addison, IL)

 This amp toured Canada and the United States to be auditioned by Audiocircle Omega Speaker forum members.  You can read comments about the amp in the Omega Speaker forum on Audiocircle. The internals have not been changed, but I have painted the bottom and the top black since the tour.  The Fleawatt badge was also removed for a simple appearance.  Inside is a YJ TPA3116D2.  Alpha volume pot and a combination of Kimber TCSS wire and shielded copper input wire.  Solid metal, gold plated binding posts.
The amplifier includes an external power supply.  $140 plus shipping.

"Jackson" TPA3116D2 (Sold to Michael V of Evergreen, Colorado)

YJ Blue/Black circuit board.  Alps Blue Velvet volume pot.  Connex brand premium binding posts.
REAN gold plated RCA connectors.  Teflon insulated solid core and Kimber TCSS hook-up wire.
Premium machined aluminum volume knob.  Textured black finish.  
$230 plus $20 shipping.  Includes a 12V 5A external power supply.

"Metered Red" TPA3116D2 (Sold to Joshua R. of Louisville, KY)

This is a used, traded-in amp.  The finish has flaws.  No returns.  There is a large scratch (pictured)
and the top has marks on it from something sitting on top of it.  The paint has flaws.  Priced accordingly.  The sound is perfect and the amp has been flea factory approved. 
Equipped with a YJ Blue/Black circuit board.  Alpha volume pot.  1960's vintage working panel meter.  (shows the amp is powered up)  Connex brand gold plated binding posts.  Gold plated RCA connectors.  Large, genuine sorbothane isolation pads on the bottom.   This amp would normally sell north of $200 with the vintage panel meter.   Includes an external power supply.

Liszt TPA3116D2 (Sold to Alan C. of Riverside, California)

Gun ship gray, textured enamel finish.
Hammond die-cast aluminum chassis.   Rotary power switch and Alpha volume pot.
Connex brand gold plated, five-way binding posts.  Rean brand gold plated RCA connectors.
YJ Blue/Black circuit board.   Includes an external power supply.

"Macklemore" TPA3116D2 (Sold to Mike of San Rafael, California)

Equipped with a YJ Blue/Black circuit board & Nichicon power supply capacitors.  Alps Blue Velvet volume pot.  Audiophile quality hook-up wire.  Circuit board isolated with neoprene pads.
Premium WBT style binding posts.  Genuine Fender guitar volume knobs.  Rean brand gold plated RCA connectors.  Rotary power switch.  3M brand enclosure isolation pads. Includes a 14V/4.3 amp power supply.

"Mozart" TPA3116D2 (Sold to Doug S. of Seattle, Washington)

Handcrafted, one of a kind, two input audiophile quality TPA3116D2.
White with black bottom plate.  Die-cast aluminum enclosure.  Audiophile grade Goldpoint brand selector switch.
Alps Blue Velvet volume pot.  WBT style gold plated binding posts.  Rean brand gold plated RCA connectors.   Twisted Teflon insulated high purity copper wire and WBT Silver solder throughout.