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Old 05-10-2017, 07:26 PM
jimtranr's Avatar
jimtranr jimtranr is online now
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Join Date: May 2011
Location: Corvallis, OR
Posts: 583
Default "...a game of inches..."

The next step in my "Stonehenge-the-Bedroom-System" project focused on the following question:

Would a change from this...

to this...

effect a perceptible improvement, if any, in what I hear at my bed-top listening position? If so, to what extent? And would the improvement warrant continuation to the next step, an attempt to reduce SBIR further by replacing the equipment cabinet with an open-frame "flexy" rack to present even less reflective surface, particularly from the rack's right side, to the close-aboard left speaker?

The change you see in the two photos was accomplished by lopping the top five inches off the cabinet (including the cabinet top) with a portable Skil saw.

That lowered the laptop (and its opened-out-during-playback reflective screen) about six inches. The chop job also allowed me to lower the left-corner 244 two-and-a-half inches so that it now hangs at the same height as the front wall's center Monster and right 244 and lowers it relative to the left Paradigm Studio 20 so the speaker "sees" a tad more of the 244's absorptive surface behind it.

I frankly didn't expect to hear much, if any, difference in the sonic presentation, since the laptop's open screen still presents a substantial reflective surface immediately behind the speaker.

Whoops, was I ever surprised. No, the bedroom wasn't transformed into the Concertgebouw as I listened to familiar rips and hi-rez downloads with the "five-inch tweak" in play. But more instrumental and spatial-cue detail became evident on the left side, "opening up" the overall presentation and rendering it a more coherent whole, both laterally and fore-and-aft, increasing the sensation of "step into the soundstage and touch someone" where the mixing engineer hasn't gone pan-pot crazy.

Well worth the sawing and sanding time...and an impossible-to-ignore incentive to get cracking on the open-frame rack.


Living Room: Win 10 AMD A12 laptop/JRiver Media Center 22 audio player; TEAC UD-501 DAC; upgraded SOTA Sapphire III; Origin Live Encounter Mk3c/Ortofon 2M Black, Graham Slee Era Gold V; McIntosh MR77; Oppo BDP-83; conrad johnson Premier 17LS (6922EH); conrad-johnson MF2500; Paradigm SE-3. Wireworld Eclipse 7 (17LS-to-MF2500) and Equinox 6 ICs, Blue Jeans/Belden 5T00UP SC. PS Audio Dectet, Wireworld Electra 5/2 PCs (PR17LS, Dectet), Hubbell HBL5362 duplex outlet. GIK standard 244 and scatter-plate 244 and Monster traps.

Home Office: Win 10 PC/JRiver Media Center 22 audio player; Wireworld Starlight 7 USB cable; Uptone Audio REGEN w/ LPS-1 linear power supply; TEAC UD-501 DAC; Luminous Audio Axiom Mk. II passive line stage; c-j Sonographe SA250; Paradigm SE-1. WW Equinox 6 IC, Blue Jeans/Belden 5T00UP speaker cable, Shunyata Hydra PLC, Wireworld Electra 5^2 power cord from PLC to UD-501; Stillpoints Ultra Minis under SA-250.

Bedroom: Win 10 i7 laptop/JRiver Media Center 22 audio player; Wireworld Silver Starlight 7 USB cable to Uptone Audio ISO REGEN via USPCB A>B Adapter; Uptone Audio LPS-1.2 linear power supply with UA Belden/Oyaide star-quad DC output cable; TEAC UD-501; Luminous Audio Axiom Mk. II Walker Mod passive line stage; c-j Sonographe SA250 w/Vampire input jacks and Cardas binding posts; stand-mounted Paradigm Studio 20 v.5. WW Eclipse 7 ICs; Blue Jeans/Belden 5T00UP speaker cable; Blue Circle Thingee FX 0e PLC; upgraded-connector WW Electra 7 power cords (from wall to PLC and from PLC to UD-501); PS Audio Power Port; Stillpoints Ultra Minis under SA250; GIK 244, 244 Scatter Plate, 224, and Monster traps, DIY 4"-thick 12"x15" traps.

Last edited by jimtranr; 05-11-2017 at 01:24 PM. Reason: typo
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