2. analog
  3. 190582-85419

Will VPI's Classic 3 sound much better with a SUT?

I'm considering adding a SUT to my vinyl rig, which already sounds detailed and neutral which I prefer. I may add Bob Device's VPI specific SUT ($1,750).  It would replace the existing RCA junction box on the arm board, so no added cable needed. 

Please have you the same/similar SUT experience with your same/similar turntable?  What was the sonic result(s)? Thank you!

PS My vinyl rig in more detail: Ortofon Cadenza Black MC, VPI Reference wired 12" 3D tone arm, Tara Labs RCA cables to Fosgate "Signature" tube phone pre-amp, Tara Labs RCA cables to Unison Research "Unico" integrated amp, Nordost "Frey 2" speaker cables to Definitive Technology "BP2000" floor standing speakers.

vinylfun
jasonbourne71's avatar
jasonbourne71
1,458 posts
 

Most mc stages amplify a mc cartridge's voltage TEN times for use with a typical phono stage! So .3 mv becomes 3 mv (.3 x 10 = 3).

jasonbourne71's avatar
jasonbourne71
1,458 posts
 

Most integrated amps have an active line stage which adds gain. At least the older ones do! I guess the single tube driver for the output stage of the Fosgate adds gain. Otherwise it wouldn't have enough voltage to drive a typical power amp.

jasonbourne71's avatar
jasonbourne71
1,458 posts
 

.3 x 1000 = 300! 

thecarpathian's avatar
thecarpathian
5,144 posts
 

".3 x 1000 = 300!"

Not when you're talking millivolts.

"0.3mV multiplied by 1000 = 0.3V"

@lewm is correct.

vinylfun's avatar
vinylfun OP
45 posts
 

Luckily I enjoy my vinyl system as is...but I appreciate any ’tweaks’ / upgrades that work. Thank you for our group conversation / education on maybe adding a SUT.

FYI My Unison Research ’"Unico" integrated amp is the first version sold, with 2 tubes and a wireless remote. Volume Level 4 out of 10 is enough for me. I upgraded the tubes to Mazda’s PLUS had two levels of modifications done - they clearly improved the overall quality, detail and soundstage of the audio to me: https://6moons.com/audioreviews/unison2/unico.html.

Unico Mods:

  • Three sheets of SoundCoat chassis damping material to the inner chassis
  • 2 premium mil-spec, ultra low noise/microphony Mullard CV4003/12AU7 designed for 10,000-hour operation
  • Two Multicap PPFXS polypropylene film and tin foil inter-stage coupling capacitors
  • Two 1uf Auricap metallized polypropylene preamp input coupling capacitors
  • Twenty Japanese Riken 0.5- and 1-watt signal path carbon resistors with gold-plated leads
  • Two feet of DH Labs Revelation Series pure 99.999% silver solid-core input signal wire with Teflon tape-wrap dielectric
  • One pair of premium Vampire direct gold-over-copper-plated RCA female jacks
  • Four WBT 0763 single output binding posts
  • TRT WonderSolder used throughout
  • 8 Vishay-Telefunken SF4007 ultra-fast soft recovery diodes to rebuild two existing bridge rectifiers
  • 6 Black Gate electrolytic capacitors to the power supply
  • Two custom-made Burr-Brown OPA-627 opamp-based PCBs to dramatically upgrade the amp driver stage

 

 

 

 

:

More to discover