"Vivaldi" TPA3116D2 (Available)

This enclosure was used for some testing of different circuit boards and volume controls.  There are a few paint flaws near the RCA's on the back.  The front is in great shape.   A Yuan Jing "Danzz" board is installed along with a Alpha volume pot, shielded input wire and Kimber TCSS on the outputs.   Hammer tone gray paint and chrome metal Fender guitar knob.  Includes a 15V 4.3amp power supply.   This one will be heavily discounted due to the paint flaws and extra machine screws on the top.

"Super Bee" TPA3116D2 (Available)

This amp has the following:  Die-cast aluminum chassis with a textured black paint, input transformers, Twisted teflon insulated solid core input wire and Kimber TCSS output wire.
A Yuan Jing "Blue/Black" or sometimes referred to as a "Danzz" circuit board.  Nichicon power supply capacitors.  Alpha volume pot.  Textured black enamel finish.  Vintage style toggle switch. Machined metal volume knob. 3M elastomer pads on the bottom.   

Goldpoint V24 Dual Chip TPA3116D2 (Available)

A boutique Goldpoint V24 stepped attenuator in a inexpensive chip amp?  Really?   That's nuts.
Yes, it is.  The Fleas at Fleawatt don't always follow the rules.  For those who were always curious what a "top of the line" stepped attenuator would sound like with a TPA3116D2, here is your chance.  Is it expensive?  Yes, very expensive.
Does it sound good?  Yes.  Is it worth it?  Is a $135 bottle of wine worth more than a great $45 bottle?  Hmmmm.  The fleas will let you decide.   Please understand that this volume pot is $175 shipped from Goldpoint when inquiring as to the price of this amp.   Specifications and tolerances of the Goldpoint V24 can be found on the Goldpoint website. 
The rest of the amp includes twisted, teflon insulated solid core input wire.  Kimber TCSS output wire. A "dual chip" TPA3116D2 circuit board.  Quality gold plated connectors.   Bare aluminum chassis with vintage style toggle switch and volume knob. 15V 4.3 amp power supply included or excluded if you have your own.  

Amp Tasting Party

As new circuit boards are developed and funds become available, I'm always experimenting with 
volume pots, stepped attenuators, capacitors, wire, isolation, input transformers, etc.  
I prefer long-term listening to get to know the flavor of an amplifier, but sometimes several are
brought together to compare to one another.  This photo was taken during one of those listening sessions at a close friend's house.  There were actually two more amps on the rack that were camera shy.  

"Porter" TPA3116D2 (Sold to Langdon B. of Junction City, Oregon)

Named after the american composer & songwriter, Cole Porter.  This was a commissioned piece by Langdon.  He requested the power switch be eliminated from his amp.  The TPA3116D2 draws so little idle current, this is a sensible option.  Equipped with a Yuan Jing "Danzz" circuit board and Precision Electronics Corporation (PEC) volume potentiometer.  Wiring is Belden brilliance and Kimber TCSS. 

"Marsalis" Dual Chip TPA3116D2 (Available)

Named after my favorite trumpet player of all time...Wynton Marsalis.
This amplifier is equipped with a dual TPA3116D2 circuit board.   An amazing sounding, silky smooth Alps Blue Velvet volume potentiometer does the volume control duties.  Wiring is a combination of Teflon coated, twisted solid core copper and Kimber Kable TCSS.  Solid metal, gold plated binding posts and RCA connectors.  24 kt. gold leaf pinstripe & glossy, fire engine red paint.
This amp comes with a 15V 4.3 amp external power supply.
$229 plus $18 shipping.

"Botti" TPA3116D2 ($160)

"Audiobah" green circuit board.  Alpha brand volume potentiometer.  Vintage style switch.  
All metal, gold plated binding posts.  Silver leafing trim.  Black textured paint.  3M bumpers on the bottom.  Named after trumpeter, Chris Botti.

"Vienna" TPA3116D2 (Sold to Glen W. of Walden, New York)

Named after one of my favorite female jazz/folk vocalists, Vienna Teng.  I had the pleasure of hearing her live in Ann Arbor, Michigan.  Her "Dreaming Through the Noise" and "Waking Hour" albums are incredible pieces of work and are superbly recorded.
Yuan Jing "Danzz" circuit board with Nichicon power supply capacitors.  Unique, side mounted, horizontal throw, antique style, brass plated power switch.   
Genuine Made in the USA Fender guitar brass plated volume knob.  Alpha brand potentiometer.  Twisted solid copper signal and output wire.  Genuine 3M elastomer pads on the bottom plate.

"Ellington" TPA3116D2 Espresso & Gold (Sold to Samuel C. in Washington D.C.)

Why name these amps?  
I regularly get e-mails from fellow audiophiles regarding features and finishes.  Naming the amps is an easy way to refer back to them in the future.
This one is named after my favorite big band jazz orchestra leader, Duke Ellington.  Of course he was an amazing composer and pianist as well.  This amplifier is equipped with a Made in Toronto, Canada PEC volume pot.  The circuit board is a Yuan Jing "Danzz" TPA3116.  Shielded signal wire and Kimber TCSS audiophile wire on the outputs.  Nichicon power supply capacitors.  A genuine brass plated Fender guitar knob & vintage style brass plated toggle switch adorn the front panel.  Quality gold plated binding posts and Neutrik gold plated RCA's on the back panel.  The amplifier comes with your choice of a 12V external power supply or power cord to use with a linear power supply.
Follow up:  11/12/15  My wife and I had a two hour listening session with this amplifier tonight.  We both fell in love with the sound of this one.  The PEC volume pots don't have the smoothest rotation, but they sure help to make gorgeous music.

"Billie Holiday" TPA3116D2 (Sold to Scott G. in Tarzana, California)

YJ "Blue/Black" circuit board with Nichicon power supply capacitors wrapped in a solid die-cast aluminum enclosure.   Teflon coated,  twisted, solid copper wire with WBT silver solder.   Kimber Kable TCSS wire on the outputs.  PEC brand potentiometer.  Vintage style toggle switch.  Neoprene vibration isolation washers supporting the circuit board.  Black textured enamel with silver pinstripe.  Machined, solid metal, chrome plated volume knob.  3M brand elastomer feet.
Eleanora Fagan, professionally known as Billie Holiday, was an American jazz musician and singer-songwriter. Nicknamed "Lady Day" by her friend and music partner Lester Young, Holiday had a seminal influence on jazz music and pop singing.

Alps Blue Velvet - Goldpoint Passive Preamp (Sold to Mike O. of Toronto, Canada)

3 inputs and one passive output.
Alps Blue Velvet volume pot housed in a clear-coated solid diecast aluminum chassis for EFI and RMI blocking.
High purity, twisted solid-core copper wire.    Boutique Goldpoint 3 way selector switch.
WBT silver solder throughout.  Gold plated Neutrik RCA connectors. 

Painted Flea TPA3116 (Sold to Levi L. of Budapest, Hungary)

Hand painted Flea logo.
Yuan Jing "Blue/Black" TPA3116 with Nichicon power supply capacitors.
Real maple veneer on the top panel.  Clear coated, "buffed" die-cast aluminum chassis.
Vintage style toggle switch.  Machined aluminum volume knob.  Alpha brand volume potentiometer.  Solid-core, twisted copper wiring.  3M brand elastomer vibration isolating pads.
Gold plated RCA connectors and gold plated five-way binding posts.

Clear Chicken Head TPA3116D2 (Sold to Giovanni G. of Rio Saliceto, Italy)

This one input, pure and simple TPA3116D2 is equipped with the Yuan Jing "Blue/Black" board with Nichicon power supply capacitors.  The rotary power switch on the left and volume pot on the right are both wearing unique clear plastic "chicken head" knobs.
The die-cast chassis is powder coated black from Hammond and pinstriped with bright silver leafing paint.  Kimber Kable TCSS wire on the outputs.  Neoprene vibration isolating washers support the circuit board.

Green, Gold & Maple TPA3116D2 (Sold to Todd S. of North Andover, Massachusetts)

This three input TPA3116D2D amplifier was built with a Gold Point input selector switch, Alps Blue Velvet potentiometer, Kimber Kable TCSS hook-up wire, WBT Silver solder,  Premium binding posts, Genuine Fender solid machined knobs, neoprene circuit board isolation, 3M brand rubber isolation pads, 24kt. gold pin striping, real maple veneer, a solid die-cast aluminum chassis for RFI and EMI blocking and a vintage style brass plated power switch.

Kimber Kable TCSS & Goldpoint TPA3116 (Sold to Robert P. in Staten Island, NY)

Wired with Kimber Kable TCSS 19 gauge wire & two inputs with an audiophile grade Goldpoint selector switch.  Genuine Alps Blue Velvet (reputable source) volume potentiometer with exceptional channel matched tolerances.  WBT silver solder throughout.  Rubber isolation grommets on both sides of the circuit board.  Heavy, machined, brass plated Fender volume knobs.  Gold plated RCA connectors & five-way binding posts.  Real Maple wood veneer.  14K gold accent striping.   Solid Die-Cast aluminum chassis for RFI & EMI blocking.  3M rubber isolation pads on the bottom.   An amplifier's resultant sound is a sum of it's parts.

Jonah Jones TPA3116D2 (Sold to Vijay S. of Reston, Virginia)

I named this amp after one of my favorite jazz trumpeters.   If you've never heard of Jonah Jones, cue some up and give him a listen! 
Black textured die-cast aluminum chassis.  Yuan Jing "Blue/Black" circuit board with Nichicon power supply capacitors.   Brass accents give this one some class...just like Jonah.
Includes a 12V/5amp external power supply or 24V/5A supply for an additional cost.

Basically Brushed TPA3116D2 (Sold to Mike O. of Toronto, Ontario Canada)

Equipped with the Yuan Jing "Blue/Black" TPA3116 circuit board.
Clear coated, basic brushed die-cast aluminum chassis.  Less expensive hardware & finish allows one to taste the
much written about YJ "Blue/Black" on a budget.  Includes a 12V/5A external power supply or for an additional cost, a 24V/5A power supply.

Americano Coffee TPA3116 (Sold to Victor G. in New Haven, Connecticut)

Handmade in the midwest, one at a time, in my spare time.
Espresso brown with hand applied 24kt gold pin striping.  Solid brass hardware.
Gold plated solid metal binding posts.  Gold plated RCA connectors.
YJ Blue/Black TPA3116D2 circuit board with Nichicon Power Supply Capacitors.
Includes a 12V/5A power supply.

Black Walnut II (Sold to Jeff A. in Colorado Springs, Colorado)

Yuan Jing (blue/black) TPA3116
Audiophile Quality Nichicon Muse power supply capacitors
Alpha Volume Potentiometer with solid brass volume knob
Gold plated, solid metal binding posts and gold plated RCA connectors.

Fleawatt Hod-Rodded Dayton B652 Air (Sold)

The Dayton Audio B652 speaker was a fantastic budget audio speaker.
The B652 Air took it for a giant leap forward.  
My hot-rodded version includes the following modifications:
Stock electrolytic capacitor replaced with an audiophile quality Jantzen cross-cap.
Stock resistor replaced with a Mills audiophile resistor.
Stock fiber replaced with Acousta-Stuff fiber made for speaker enclosures.
Stock sponge feet replaced with 3M brand elastomer isolators.

Hot-Rodded Klipsch KLF-20 (Fleawatt Modified)

I love the Klipsch KLF series.  I've wanted to acquire a pair and modify them with new baltic birch cabinets.  In December, I found a pair of KLF-20's that were the perfect candidates.  New 1" thick baltic birch top, bottom and side panels were constructed.  The crossovers were re-capped with Dayton Audio 1% precision poly caps.  The tweeters were upgraded to Bob Crites Titanium.  

"Fixed Gear Tribute" TPA3116D2 (Sold to Alex B. of St. Louis, MO)

This amplifier is my tribute to fixed gear bicycles. (one gear on the faceplate)  A fixed gear bicycle has only one gear and it is directly tied to the rear wheel hub, with no freewheel.  Used by track cyclist, professional cyclists for training, bike messengers and hipsters, it became a prominent subculture of cycling.   
This amplifier has an upgraded "Audiobah" TPA3116D2 circuit board.   Some fans of the popular TPA3116 amplifier prefer this circuit board over the YJ "blue/black".   Preferences would be purely subjective and system dependent as I think both sound fantastic.  The stock power capacitors were replaced with 35V 1000uf Nichicon Fine Gold capacitors.   A Vishay 1% SMD resistor stepped attenuator performs the volume control duty.
Real brass accents adorn the black textured die cast aluminum chassis.
Comments from Alex:

"I love the amp! I have owned all kinds of high end solid state, push pull tubes and SET and this amp is right up there with the best of them. I have tubes that cost more than your whole amp and it is top notch."

"Naked Diecast" TPA3116D2 (Sold)

The amplifier circuit board is the Yuan Jing "blue/black" TPA3116D2.  Equipped with a multimeter inspected, high tolerance, Alpha 100K volume control.   Solid metal, gold plated five way binding posts.  Gold plated RCA connectors.  A very quiet, external 12V/5A switching power supply provides power for 15 watts per channel into 8 ohms.  An optional 24 volt supply for 30 watts is available. 

Vertical Bi-Amp 3116D2 (Sold)

This amplifier is made for bi-amping speakers that have bi-wireable passive crossovers. 
One pair of binding posts connect to the low posts and the other pair to the high level posts. 
Dual TPA3116D2 amplifiers handle the power and are handed off the audio signal by a Teradak brand Vishay precision resistor stepped attenuator volume control.   There are only two 1% tolerance Vishay resistors in the signal path before hitting the circuit board.  The amp is wired with plenum grade Cat5e (teflon insulated) & shielded copper cable.  Solid brass, vintage look toggle style power switches, gold plated, solid metal binding posts, gold plated RCA's, 3M elastomer vibration isolation pads and a textured black enamel round out the aesthetics.  Individual power supplies can be used for each section or a single, 10amp or better single supply with two power cord leads.  

"Alpha Aluminum" (Sold to Caintuck Open Baffle Speaker Co.)

Equipped with the blue/black Yuan Jing board.  Alpha brand volume pot that is tested with a tolerance of 1% between channels.  Plenum grade Cat 5e signal wiring.  
Includes a 12V/5A power supply.  Wondering what's up with the screw heads on the top of the amp?  I mount the board to the top to facilitate the shortest wiring paths possible.  Mounting on the bottom plate looks nicer, but I'm about the sound.

"Henry Ford Model T" TPA3116D2 (Sold to Caintuck Open Baffle Speaker Company)

"You can get it in any color, as long as it is black."  

Many of the inquiries I get are from audiophiles asking what is the least expensive, while still sounding good, amplifier that I can build.  Well, here it is.  A good portion of one of my simple amplifiers costs is the volume control & aluminum chassis.  When I first started building amplifiers, I used the inexpensive Alpha brand volume pot.  This is a carbon track potentiometer.  Music reproduction is a matter of taste, but I could imagine some audiophiles, who enjoy a warmer presentation, may even prefer this volume pot over a more open and revealing Vishay stepped attenuator I use.   Unfortunately, the channel matching on these Alpha pots is inconsistent, as it can be with less expensive volume controls.  Never fear though, the flea measures each channel and promptly throws any in the garbage that have more than 1% difference between channels.  This ends up being about 25% of them.  Why is channel matching important?  Imaging and the centering of the performer in the soundstage.  (when recorded that way)
I tried less expensive plastic boxes to house my amps, but I just couldn't come to terms with the low quality look, light weight & lack of RFI & EMI shielding of the die cast aluminum boxes. 

Other features of the basic "Model T" include gold plated RCA's, five way binding posts, neoprene circuit board mounts, 3M elastomer chassis vibration isolators, teflon insulated solid core copper wire, along with shielded copper & a retro look power switch.  A 12V 5A external power supply is included, unless you would like to provide your own.