I have been designing a class a amp and the sound I am getting is way beyond anything I have ever heard here.  It is so palpable, 3D, super wide imaging, super clear and super sweet and musical!  We will have the finished product ready to ship in a few weeks ($2500)....please see:
 

Because I bought some extra chassis I have two Class A prototype dual mono stereo amps I can assemble for people.  They can be wired as either a 25 watt a channel (50 into 4 ohms) rca input amp or as 100 watt a channel (200 into 4 ohms) balanced only amps.  They will sound better than any First Watt or other Class A solid state amps.  We simple are more tweaky.  Both amps will have my binding post bypass system, damped chassis, damped heatsinks, audiophile fuse, dual mono, direct coupling (no coupling caps), world class resistors, soft recovery diodes, multiple output devices, high input impedance (101K), 23-29 db gain (16X, 29X), less than .2 ohm output impedance, 200K bandwidth, etc.  The are full fet amps.  Jfets in the first stage and Mosfets in the second.  Super simple. Super transparent.  The same circuit in all three amps.  A balanced amp would have to be driven balanced...no single ended input.  Balanced will sound better and give more power.

Also for sale will be a third prototype single ended amp done pretty much the same way but with small heatsinks inside the chassis.  This amp will only do about 5 watts a channel class A but still do the 25/50 as an AB amp.  Its chassis will be fairly funky.

1.  This first amp chassis is what we are testing our new circuit in.  The trouble is, it is not tall enough to fit the two transformers without them sticking out the top.  Also it is deeper than what I need.  So, all the current parts you see in the pic below will be put into our "pre-production" chassis for real world testing.  So, that leaves this chassis free to make a prototype amp for someone who does not care if it does not have a cover or the trannies are sticking out.  I could get a piece of alluminum and have it cut out so it goes around the transformers so you would have a cover (with tranformers sticking out still)...but I would have to charge you $100 or so for the work.  This chassis measures 17" x 17" x 5".  It will not look like this when you get it.  All wires will be connected to connectors.  This amazing sounding prototype is available for $1000 or $1100 for balanced plus shipping.....the first $500 deposit holds it.  Delivery will be sometime in late June.  The remainder of the payment needs to be about 2 weeks before shipping so I can buy any parts I do not have.  30 days in house trial....total money back guarantee.....you will be happy.  Sold

2.  Same as above but in the "pre-production" chassis that measures 17"x 12" x 6".  This will allow the transformers to fit inside the chassis and will look nicer with a cover as well.  The only difference from the actual production chassis is there is a hole on this chassis on the front cover for a power switch and there won't be a hole on the actual production chassis.   This prototype amp will be $1400 or $1500 balanced plus shipping and again $500 holds it till delivery in late June/early July.   Sold

3.  The pic below shows the inside of the third amp.  As you can see the heatsinks are internal and smaller.  It will not be dual mono but just one 500 watt Plitron tranny and will do 5 watts a channel class A and the rest A/B.  All the usual EVS tweaks, of course.  This amp will be $500.  Single ended only. Measures 16 X 16 x 4.  The power supply board shown inside will not be used and there will be more transistors on the heatsinks.  Yes, it will have a cover.....with holes drilled by hand for ventilation.  Funky but super sound.