Oh dear - too many variables to be able to give a diagnosis. Guess you have to fix the amp first, before returning to the deck issues.
Oh dear - too many variables to be able to give a diagnosis. Guess you have to fix the amp first, before returning to the deck issues.
Richard.
Round & round bits: LP12/Cirkus/Kore/Herc II/Roksan Nima/Hana EL
Megabits: Bluesound Node 2i/TEAC UD-H01 dac
Making it louder bits: Phonostage: Dynavector P75 Amp: Cyrus 8vs/PSX-R Speakers: Royd Sintra II
Connecting it together bits i/c's: Flashback Premier. Speaker cables: Van Damme Hifi
Main System
Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & regulator mods]. Funk Firm APM Achromat with Nagaoka GL-601 Crystal Record Weight. Isonoe feet & boots. Ortofon RS-212D tonearm with Denon DL-103GL, in a Denon PCL-300 headshell, fitted with Funk Firm Houdini and Kondo SL-115 pure-silver cartridge leads.
Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and Denon AU-310 SUT.
Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.
CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.
Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.
Preamps: Heavily-modified Croft Charisma-X. Power Amps: Tube Distinctions Copper Amp, fitted with Tungsol KT-150s. Quad 306.
Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.
Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.
Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.
FWIW, Richard, my old 670ES did this but was cured with a few presses of the A or B speaker selector switch, I think it was a dry joint on one of those, not sure.
Although it was either in balance or not, it did not fade away at all.
Michell Mycro / AT33PTG/II | Ray Samuels F-117 Nighthawk | Yamaha CD-NT670D | Bryston B60R | ATC SCM10
Thanks Rob - I've tried this a few times, which does seem to work up to a point. I'm not sure whether the relays are channel-related (ie one relay is left channel on both A&B for example) or if each one is for both channels on each separate speaker output. Using the output 'B' still brings the same symptoms so I'm not sure what's going on (electronics aren't my forté I'm afraid!).
Just now I've had a brief play with the switches - the relay always clicks (as you'll know with your 670 there's the faint 'tick' from the rear of the amp) when the buttons operated. Played a mono signal in on a line input, push the A button and the r/h channel goes quieter - keep pressing it in and out (20+ times) and it gets louder, then softer, then louder etc etc each time the speaker output goes live. I'm wondering if there's a voltage/current drop across the realy - enough to make contact for sound to appear but not always quite enough.
Would like to get it fixed as the amp's great but I'm really not confident about delving into the amp's innards for fear of breaking something. I'd rather sell it on to someone who can fix it themself easily.
Richard.
Round & round bits: LP12/Cirkus/Kore/Herc II/Roksan Nima/Hana EL
Megabits: Bluesound Node 2i/TEAC UD-H01 dac
Making it louder bits: Phonostage: Dynavector P75 Amp: Cyrus 8vs/PSX-R Speakers: Royd Sintra II
Connecting it together bits i/c's: Flashback Premier. Speaker cables: Van Damme Hifi
Ah cool, I have no idea on the insides, cant be much more help I am afriad.
Michell Mycro / AT33PTG/II | Ray Samuels F-117 Nighthawk | Yamaha CD-NT670D | Bryston B60R | ATC SCM10
Richard.
Round & round bits: LP12/Cirkus/Kore/Herc II/Roksan Nima/Hana EL
Megabits: Bluesound Node 2i/TEAC UD-H01 dac
Making it louder bits: Phonostage: Dynavector P75 Amp: Cyrus 8vs/PSX-R Speakers: Royd Sintra II
Connecting it together bits i/c's: Flashback Premier. Speaker cables: Van Damme Hifi
A bit of 'me' time whilst the girls watch some Disney stuff in the family room...
![]()
Richard.
Round & round bits: LP12/Cirkus/Kore/Herc II/Roksan Nima/Hana EL
Megabits: Bluesound Node 2i/TEAC UD-H01 dac
Making it louder bits: Phonostage: Dynavector P75 Amp: Cyrus 8vs/PSX-R Speakers: Royd Sintra II
Connecting it together bits i/c's: Flashback Premier. Speaker cables: Van Damme Hifi
Very nice Richard . Your setup looks similar to mine physically , However I use an all Rega system with a music server ( I get all my ripped albums showing on my 37 inch plasma TV as you can see) . I am lucky enough to have my own listening room , whrere I spend more time than I should . How's the amp behaving BTW ? I see you're still using the Proacs , might we see the return of the Q Acoustics . Wonder where we'll all be , system - wise this time next year . Happy new year to you , and all on AOS .
Last edited by brian2957; 01-01-2013 at 13:05.
Nice looking Mancave Richard...
Are you remote controlling your server with the tablet?
Apple Remote Desktop to your Mac is it?
Been playing around with controlling my various PCs dotted around the house with my Ipad, even managed to get some work done with it sitting in the lounge on the sofa.
Nice setup mate.