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keith1962
26-09-2012, 14:27
I have an Avondale Grad1 pre which only has one line out via RCA connections. I use a Mogami interconnect with a pair of no-name generic connectors each end. I switch between my S100 and headphone amp by unplugging from one and plugging into the other (both switched off). This is tedious and I am concerned that I could, over time, do excessive wear to connectors/terminals.
I had thought of having a Y-cable made up so S100 and headphone amp are always connected with one always switched off while the other is in use. Will this noticably degrade the sq? Are there any other ways of doing this other than replacing the pre? Would I be better off having two sets of interconnect always connected at the S100 or Head amp and swap over at the pre each time which would be easier as it is at the top of the rack. Danger here is ensuring the unit not in use is always switched off.
I have looked at Mark Grant G1500 and 2000 and the Yannis 223.5. Any views on how these two compare as regards presentation and would either be a better fit with my system. I am using ATC SCM40s with NAC A5 at present and I like an open clear but smooth sound. Will probably be looking to change speaker cable also as I need longer lengths so a recommendation for suitable replacements here would also be gratefully received. I like the NAC A5 and would use that again. When I tried Chord Epic I felt there was not a huge improvement, if any, especially considering the price.
Any advice most appreciated.
Best regards,
Keith.

wee tee cee
26-09-2012, 16:43
RCA splitters from maplin are good and well made. Mark grant does bi-amp cables which are very good and can be terminated with 1500 spec plugs at the other ends. Dont really know what sonic degradation splitting the signal would do though...

markf
26-09-2012, 19:39
You could use the output of the tape loop to feed your headphone amp. (assuming your not using the tape loop for anything else)

keith1962
27-09-2012, 08:34
The Grad1 only has three lines in and one line out on the back, no tape out hence the problem. I am wary of splitters as they add extra connections so wondered if a professionally built split cable would be better? MG and Yannis can both build the cable but was wondering if anyone here had any experience of how they affect SQ. I suppose it is just a bi-amp cable? Also wanted views on MG copper -v- Yannis silver with my gear, silver seems to be mainly popular with people with valve systems? Or is that too much of a generalisation?
Best regards,
Keith.

Canetoad
27-09-2012, 08:56
This (http://www.beresford.me/PP/TC2D7240_STEREO_RCA2FPHONO_SIGNAL_ROUTER.html) might be useful. :)

bobbasrah
27-09-2012, 11:17
This (http://www.beresford.me/PP/TC2D7240_STEREO_RCA2FPHONO_SIGNAL_ROUTER.html) might be useful. :)

+1
No impedance issues.... :cool:

wee tee cee
27-09-2012, 16:55
I used MG bi amp cables for about a year, they were very neutral and uncoloured.MG is a great guy to deal with and will trade in/upgrade cables as you move along. I consider his cables as long term investments...

keith1962
27-09-2012, 22:23
Thanks for the views guys. That splitter unit from Beresford does look very interesting and needs further investigation. I think I will investigate having an extra line out hard wired into the pre also as this may be the neatest solution and will stick with the MG copper cables rather than silver. Any experience out there of the differences effected by using different connectors on the cables, standard-neutrik-eichmann/WBT copper-eichmann/WBT silver?
Best regards,
Keith.

3dit0r
30-09-2012, 17:22
I would think splitting the cable would have a detrimental effect (I have never tried it, but instinctively, I think you'd still be essentially 'driving' two amps, even with one switched off, and essentially two lengths of cable, not to mention the compromise in the cable design, etc.).

If you had digital sources only, I'd recommend splitting the headphone amp off before the preamp and getting a headphone amp/DAC (many good standalone DACs also contain very good head amp these days) and running the phones off that and the speakers through the Grad 1 (amazing preamp, btw). The turntable is problematic with that solution though.

Perhaps call Les and see if anything could be done with two sets of outputs, he's the man and will know for sure (I'd ask him about the cable splitting idea too)? Good luck!

Regarding connectors- the WBT Nextgen and Eichmann designs definitely sound better than the standard RCA plugs (I have direct experience of this having upgraded to WBT Nextgens from 'standard' WBTs on my Kimber Select cables. I have no direct experience of the Eichmanns but they are a similar design principle. Personally, I prefer the sound of silver WBTs, but IMO the difference between copper and silver is far less than that of the difference between the different designs of plugs (much as the sound of silver in cables is a question of degrees, whereas the physical design and geomerty of a cable makes a larger difference). Also, from previous experience, ordinary purity silver sounds much worse than ordinary copper. Once you get into UP-OCC or 6N purity, it's a different matter :)

3dit0r
30-09-2012, 17:28
By the way, to really maximise the gains from switching to NextGen plugs, use the NextGen sockets too.

sq225917
30-09-2012, 17:28
As long as one is switched off there will be no issue with driving two lengths of wire, if a component is off, then it's off, no current goes through it. You could easily rewire a 2nd input to be an output on the Grad1. if you only have one source that will be the simplest route.

YNWaN
30-09-2012, 18:52
Any experience out there of the differences effected by using different connectors on the cables, standard-neutrik-eichmann/WBT copper-eichmann/WBT silver?
Best regards,
Keith.

Yes, here http://theartofsound.net/forum/showthread.php?t=17518 :).

However, I also have recent experience of the WBT silver connectors compared to those of Eichmann - but that is yet to be written up :).