Description

Listening Room Construction

12” concrete floor

Poured steel reinforced to 9+” to 12+” 3000 lb. PSI concrete floor

 Walls-

1” MDF

1/8” thick Acoustiblok vinyl sound barrier

¾” MDF

3 x 12 vertical studs, 14.5” on center

Staggered 13” wide 2  x 12 and  4 x 12 per vertical stud channel

13” X 4” X 48” 72lb. 4 chamber activated charcoal absorption filters staggered vertically up/down/up/down

4” Rockwool insulation over vacant stud channel area adjacent to filters

Flexseal all joints

¾” cherry plywood

 Ceiling

4’ Sound Absorption Blankets

4” Rockwool

2 x 8 horizontal beams

5/8” X drywall paneling

1/8” thick Acoustiblok vinyl sound barrier

¾” cherry plywood

2 Doors-same as well construction 17" thick, 1000 lb and 850 lb, no other openings

 Recessed 9 BR 40 65 Watt LED floodlights

2 Ton HVAC split system, low speed, high volume

104 oz. plush cut pile carpeting (Fabrica Seduction)

Electric-Audio sources only Subpanel with 8 breakers for 8 duplexes, 10 gauge wire (lighting and A/C on main subpanel) Synergistic Research Blue Duplexes for equipment

Side Walls treated with 2' X 4' 2" thick Acoustic Fields absorption panels  60% coverage

Ceiling treated with 4' X 6' 4" thick Acoustic Fields absorption panels 75% coverage

Synergistic Research HFTs 

I will post photos later
Read more...

Room Details

Dimensions: 20’ × 15’  Medium
Ceiling: 10’


Components Toggle details

    • Audio Equipment - 2 Systems
    Audio Equipment – Primary Listening room

    Von Schweikert VR9 SE MK2, new Class D 1000 watt Foundation amps for 15” Rel Dynamic subs. new MasterBuilt cabling, 4 new ribbon tweeters

    Pending - Westminster Labs REI Class A solid state sliding bias 100/200/400/800 monoblock amps into 8/4/2/1 ohms.

    Current Amps/future back-up 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, Grey plate RCA 6CG7/6FQ7 input and driver tube, 2-6” X 3” electrolytic storage capacitors.  Tremendous control over speakers.  Acme treated fuses (cheap-$22) Built on Altec 1569A chassis and kept the transformers.

    Pending delivery-Lampizator Poseidon Pre-amp/DAC 

    Current Pre-amp/future back-up Custom 6 subminiature tube pre-amp and 8 subminiature tube phono stage, voltage regulated design non-fused  

    Current DAC/future back-up COS Engineering D1v DAC Balanced cable out to pre-amp.  Fantastic imaging and resolution with Acme treated fuses.  Shocked at it's high quality sound now with superior transport (inadequate transports were a former problem).  Grover Huffman digital cable from transport for now. 

    Pending delivery-Jay's Audio CDt3 Mk3 CD only transport with CDM 2 LF mechanism.  Blue Jeans AES digital cable.  

    Current Transport/future back-up Shanling ET3 transport  Best for CDs, not for USB input (best buy at $720). 

    Further Back-up 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

    Blue Jeans/Beldon Balanced cable DAC to pre-amp for COS1 DAC (former SR cable was somewhere between 110 and 130 ohms-colorful/dynamic but NOT linear or open)  Currently, using Grover Huffman XLRs into transformer box out to RCA pigtails to preamp.

    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 Allesso  All with custom Grover Huffman Pharoah very low capacitance RCAs.  Perfect Match into 100 ohm MC of EAR 864, the EAR 912.  Trying the EAR 324 again, balanced into Poseidon

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

    Ultra SS and Mini-SS Stillpoints under some equipment (VPI power box. Marantz 7C Grover custom pre-amp) 

    2 Pair Shakti Hallographs only adds, does not subtract from speakers

    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 and all rear due to brightness, unnecessary on Signature IIIs or VR9 SE MK2)

    Synergistic Research blue duplex outlets

    Sand/Shot filled custom built steel stands

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

    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, Acme treated fuse.

    Arcam Delta 270 as CD player outdoes Kyocera 310, equal to 410 and Denon 1500.  Same huge modification as the Delta 250 transport.

    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.

    Multiple Kyocera 410x CD players and Grover Huffman major upgraded Arcam Delta 270s lying around with upgraded Panasonic power capacitors, a few other new caps, regulators, etc. Grover Huffman Pharoah RCA interconnect.

    Kenwood 5000? FM/AM tuner.

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

    Synergistic Research Black duplex power outlet

    Grover Huffman Empress speaker cable.

    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 DAC 

    Selling Bryston Bit-20 isolation transformer (Custom power cable as usual).  Restricted Dynamics, after 8 years removed.  Just plugging it in or having the huge transformer in the room altered sound. 

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


     


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Don’t leave us hanging, pictures please!

hifihandyman

Don’t leave us hanging, pictures please!

hifihandyman