Class A/B 125 watt push/pull, voltage regulated amplifier (not ultralinear) with 6 6BG6 Russian output tubes, RCA late 1940s or early 1950s 6SN7 cathode follower, Japanese 6GU7 input tube old grey plate RCA black ladder plate 6CG7/6FQ7 driver tube (Tung-Sol grey ladder plate as well), 2-6” X 3” electrolytic storage capacitors.  Tremendous control over speakers.  Synergistic Reseach blue fuses (warmer).

back-up EAR 890 amp 70watt Class A zero-global feedback, auto-biasing on Synergistic Research Mig-SX isolation footers, GCTs on trannies removed because they darkened the sound.  Added a Synergistic Research purple fuse-(primarily increased warmth, separation of instruments and voices)   Smaller soundstage width and smaller presentation than Grover amps which are wide open and out of the speaker.  Otherwise a very clean and high resolution sound with a touch of warmth.  

Other back-up Dynaco ST70 highly modified below

EAR 912 pre-amp  Always wanted this since I heard it 20 years ago for phono.  I bought a new one.  Replaced fuse with Acme treated 1 amp.  Replaced pre-amp tubes with NOS Bugle Boy D getter Amperex and Mullard NOS early tube/unknown heritage, put two Herbie's halo tube dampening rings on them.  No change on phono tubes or footers under chassis.   Dynavector 20X2 L at 6 ohm, -6 db setting perfect with meters up to 0 db plenty of gain and tone density.  Great meters informs of compression or lack thereof on all formats.

COS Engineering D1v DAC- No longer has sterile sound but with delay unsure if it adds distortion through an algorithm to add ambiance.  Balanced cable out to pre-amp.  Fantastic imaging and resolution.  Maybe I'll play with digital cabling and/or fuses.  Shocked at it's high quality sound now.  

Arcam Delta 250 Transport BNC out and 270 CD player RCA out, highly modified with 15 new high quality power, filter, bypass caps, regulators, etc.  Uses Philips CDM 9 transport mechanism

Arcam Delta 270 now as CD player outdoes Kyocera 310 & 410 and Denon 1500.  

Grover Pharoah Balanced cable DAC to pre-amp  (former SR cable was somewhere between 110 and 130 ohms-colorful/dynamic but not linear or open)

VPI TNT VI heavy platter with SDS on Townsend Sink, SME IV modified with Cardas wiring/RCA box and closed foam insulation.  Pharoah power cables on motor and SDS unit,  

Dynavector 20X2L Zesto Andros Allasso  All with custom Grover Huffman Pharoah very low impedance RCAs.  Perfect Match into 100 ohm MC of EAR 864.  Both unused now latter for sale.

VPI 19-4, Ultracraft 400, Grado 78 cartridge into Marantz 7C pre-amp

Bryston Bit-20 isolation transformer (Custom power cable as usual)

Ultra SS and Mini-SS Stillpoints under some equipment (Bryston BIT-20, VPI power box and Marantz 7C) 

2 Pair Shakti Hallographs

Removed Shakti on-line (one) placed on top of power amp plug at outlet-no other Shakti stone or on-line works in my system/degrades sound

Speakers-Legacy Signature IIIs (superior to Focus in soundstage, openness, coherence, ease to drive)

Nakamichi cassette deck ZX-7

Technics 1500 R2R and Tandberg 900X R2R

Grover Huffman Pharaoh speaker cable

34 Synergistic Research HFTs various types (removed front center one due to brightness, kept speaker kit only for Focuses)

Synergistic Research blue duplex outlets

Sand/Shot filled custom built steel stands

Amps on granite slabs 

Pending-GIK Q7D front wall diffuser(s) trial in 3/23

Back-up Amps - Pair of Altec 1569A  Extreme modification   Kept the chassis and transformers

Synergistic Research blue fuses and Grover Huffman Pharoah power cable into IEC pig-tail.  Grover Huffman Pharoah RCA to pre-amp 

Back-Up Pre-amp - Custom 6 subminiature tube pre-amp and 8 subminiature tube phono stage, voltage regulated design non-fused DAC - Extreme modified 

Audio Equipment – Living  room

Dynaco ST 70 Extreme modification  Now a Class A/B 35 watt push/pull, voltage regulated amplifier (not ultralinear) with chassis depth electrolytic storage capacitor, superior bias control, feedback change, rectifier tube used for slow start-up only, replaced RCAs and speaker terminals, Synergistic Research Blue fuse.  

Grover Huffman Pharoah power cable into IEC pig-tail.  Grover Huffman Pharoah RCA to pre-amp 

Custom 6 subminiature tube pre-amp, voltage regulated design non-fused.

Kyocera 310x CD player with upgraded Panasonic power capacitors, a few other new caps. Grover Huffman Pharoah RCA interconnect.

Kenwood 5000? FM/AM tuner.

Legacy Focus speakers - Rosewood looks great in formal Art Deco/Mahogany furniture/Pink wall room

Synergistic Research Black duplex power outlet

Grover Huffman Empress speaker cable.

Selling - former backup EAR 864 preamp on it's own feet on 1" thick granite and a Synergistic Research blue fuse (essential).  Tubes-Mullard CV4004 type 2AX7 (not thick old Mullard but a military tube with extended bass/highs/dynamics/high resolution/neutral mids) RCA cleartop 12AU7, Phono-stock pair Ei 12AX7 with double silicon damping rings and Sylvania D getter 12AX7 in front).  Transformed to better than mid-fi quality with caveats in flat and narrow soundstage and resolution.  Great dynamics and bass.  Tried 12+ footers (Stillpoint UltraSS, Townshend Platform, etc. all worse with distortion, diminished volume, etc).

Selling my former back-up DACs Benchmark HDR1 and Emotiva XDA-1 (new filter caps, tantalum, power caps, new audio board, $47 Sparkos Labs audio grade  regulators replacing 50 cent computer grade)  Pending replacement of $5 Texas Instrument Op-amp with Burson vivid $135 Op-amp of Sparkos for $80.  Problem with this DAC is it's analog output resolution-junky Op-Amp instead of high end or discrete output.  Replaced back-up is the Topping D70s (AKM chip)-$500 equivalent of the $9000 COS D1v