Location: Suffolk, UK
Posts: 1,468
I'm Paul.
There be bloody Dragons living in my garage. I'm scared of it.![]()
Shian7
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Kudakutemo
kudakutemo
ari mizu-no tsuki
Though it be be broken -
broken again - still it's there:
the moon on the water.
- Choshu.
Haha!
Some preamp outputs just don't like driving long interconnects - my old Croft preamp for example is fine (if a little "soft toned") with 1m approx interconnect to power amp, but give it 9m runs to my active ATC's (with 20K single ended input impedance?) and all the top energy disappears. My other old preamp (an AVI S2000MP+P [am I allowed to mention them?]) which has a miniscule output impedance (and uses chunky metal canned trannies in the line stage which run quite hot I discovered) and seems very transparent to whatever source you use with it, drives the long leads with total disdain, as well as the second set of variable outs driving an old lightly tweaked Crown D60, which amazes me how musical and open it is, bearing in mind its 35 yrs approx. of age and 10% resistors all over (it does use 1% in critical bits and they were expensive back then).
I can't go on and I can't go back, I don't feel so matter of fact,
I tried and tried to make good sense, What's the good to try it all again?
hi dave,
thats exactly what a good pre-amplifier should do, if any source equipment, be it CD, PHONO, PREAMP,etc,has a relitively high output impedence, ie above 10k etc,[marco take note] it will struggle driving long capacitive/reactive loads,mainly as you quite rightly discovered in the top end frequencies, the low frequencies are also affected in all be it a more less obvious way.
anthony,TD...![]()
Last edited by anthonyTD; 06-09-2008 at 20:17.
Hehe... Fortunately I don't use long interconnects!
Dave,
Anthony designs some fabulous grounded grid preamps which give my modifed Charisma-X a hard time. There's something special and fundamentally 'right' about the presentation of a good GG design.
Marco.
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.
Seems to me there are two possible problems here. First is that unless they're load bearing, most internal walls are of lightweight construction and transparent to whatever's going on between sources and speakers. Second is that a lot of the gear we all like to listen to looks good as well as sounds good. I suppose there's a third problem. Putting all the controls not just out of arms reach but in another room opens a whole new bag of worms. Gives the disenchanted the ability as well as the desire to "turn that racket down". They can also turn it up. Back in the 1970's, the offspring of a guy I knew wrecked a pair of ESL57s by cranking the volume. Controls weren't in another room; they were hidden in a pine cabinet. By the time he got to them, the damage was done. I believe the record involved was by Donny Osmond....................![]()
Location: Well below the Mason-Dixon line
Posts: 370
You boleks jsut need to rleax and let yuor mdnis cpmoleate teh pitcrue. Tehn you w'uoldnt haer the dffirence bteeewn one plceaemnt of kit and the ohter.
Tim
Location: Lancaster(-ish), UK
Posts: 16,936
I'm ChrisB.
Well I waited for ages for someone to say something about my post being a load of old boleks but I didn't think it would take that long