My GR Research Super V system
As of 2018-05-07
As of 2018-05:
As of 2018-04:
As of Late 2017:
Room dimensions are 16’9” x 14’2” (small alcove in the back by the entry door to the room – 7’7’” x 2’2”, so the right side of the room is really 14'6") x 9’ tall. I leave the back door open because it lets the room depressurize quite a bite. It makes the left wall (looking towards the speakers from the listening chair) 12’ or so longer and moves the modal frequency away from the parallel wall.
1. GR Research Super V speakers.
2. Rythmik Audio DirectServo A370PEQ amps to power the 12” SW-12-08FR subwoofers in the GR Super Vs.
3. Modulus-86 amplifier
4. PS Audio Stellar Gain Cell DAC
6. Single-ended ICs (Gain Cell -> A370s): Blue Jeans Cables LC-1s
7. Balanced ICs (Gain Cell -> Modulus-86) Zenwave D3
8. Speaker cables: Ancor 12AWG tinned copper (like Supra PLY 3.4).
9. Power conditioning: P.I. Audio Group MiniBUSS.
10. Power cords: Triode Wire Labs “American 8” for each A370 amp, 8+ for Mod-86. P.I. Audio Group MPC+ PowerCon for MiniBUSS (Made by Dave). P.I. Audio Group DAC cable for PS Audio SGC.
11. Hubbell spec grade duplex HBL5262GY.
12. Custom made low amp shelf. MDF/Plywood sandwich, heavily braced and coated with Duratex.
Room Acoustic Treatments:
1. GIK Soffit bass traps 4x on the front (1x 35” to account for shorter right wall vs. left wall). 1x on the back wall behind the listening chair.
2. GIK 244 bass traps (2 at first reflection points), 2 between speakers (behind curtains), 1 behind listening position above rear bass trap.
I wanted to post about my system now that I have had a chance to get it set up and dialed in during the last year (Super Vs purchased in Feb 2017). The Super Vs were not my first open baffle speakers that I’ve tried out in my room but far and away the best. The Super Vs replaced a pair of Decware-modified Fostex full range drivers in MLTL enclosures and before that a tri-amped pair of JBL horns (2226 + 2445 + 2405s). Bass from the Super Vs is unlike anything I’ve ever heard, even more powerful than my JBL 2226 midbass drivers in large enclosures with DSP and EQ.
Since purchasing them, I’ve also made lots of improvements to the room with treatments. I have five GIK acoustics soffit bass traps, which have been the biggest improvement I’ve made in my room by far. I have a set of GIK 244 at first reflection points, a pair between the two speakers behind a set of curtains, and a single behind my listening chair in the alcove above my fifth bass trap.
I’ve tried a number of speaker cables in my system. I had been using some DIY “white lightning” cables, built from instructions on 6moons. More recently, I switched to Blue Jeans speaker cables (Ten White) having also tried AntiCables in the process. I’ve also had the Decware Zen Styx cables, which were a bit too short, so I sold them. I am now using Ancor marine 12-gauge tinned copper cables, which sound pretty good for the price. I'm still in the market for speaker cables.
I use a P.I. Audio group miniBUSS. I plan on getting an uberBUSS in the future and daisy chaining the two together.
Music that I listen to:
Jazz, classical, modern and classic rock. CDs ripped to loseless files played back through the PS Audio DAC from my Mac Mini. I run a 15’ USB cable directly out of my Mac Mini and into the DAC.
1. Still in the market for speaker cables.
2. Still want to add a second soffit bass trap behind my listening chair.
3. Still want to add an Uber Buss for additional power conditioning before the MiniBuss.
1. 7/29/2017. Noted changed power conditioning solution. AudioPrism Foundation III has been sold, CD player out of the system. P.I. Audio miniBUSS purchased with DH Labs power plus. Decware speaker cables have been sold because they are too short. Back to White Lighting and Ancor tinned copper cords. Updated picture of system. Spatial black hole generator removed from system.
2. 5/01/2018. Updated pictures of the system. New curtains that aren't as shiny and not as blue (these are actually pretty close to medium gray in color). The hypothesis is that if they are shiny and cool, the system will sound that way too. I want neutral to the side of warm (auditory/visual interactions at work!). Updated info about chip amp. Removed items that aren't in the system anymore.
3. 5/22/2018. Updated intro section. Changed things that are no longer in the system or sold. Made a large effort to simplify everything, prioritizing the reduction of anything that generates noise or heat. Vinyl system removed. Sutherland phono preamp sold. Rega RP3 traded towards PS Audio Stellar Gain Cell Dac. Extra Blue Jeans cables sold. Isolation transformer sold. CD player sold. Maple rack sold. New pictures of set and DIY amp/dac stand.
4. 5/22/2018. Historical equipment no longer in use in the system.
a. DACs: MHDT Paradisea+. Breeze audio USB to S/PDIF convertor.
b. Phono Preamps: Lounge Audio Mk III LCR, Sutherland Ph3D.
c. Preamp: McCormack TLC-1.
d. Turntables: Sony TTS 3000A with SME Series IIIs tonearm. AT 440MLa cartridge, Ortofon Quintet Blue MC. Rega RP3 with Elys2 and GrooveTracer.
e. Amps: Decware Mini Torii.
f. Racks: Salamander audio rack. Solid maple audio rack.
g. Acoustic treatments: RPG skyline diffusors. RPG BAD ARCs.