Do you think i would get away with a 3 metre interconnect between my pre-and power amp? Phono to Phono.
Do you think i would get away with a 3 metre interconnect between my pre-and power amp? Phono to Phono.
Location: Near Saffron Walden, Essex
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I'm Dave.
Shouldn't be a problem with a sensible cable, depending on the pre.
I have eight metre ICs between my pre and power. No probs.
Ralph.
The resistance of 3 meters of cable would be negligible. The capacitance would be about 300pF (less with top notch cable). The output impedance of the pre-amp would have to be 26k to cause a high frequency roll-off at 20kHz. I doubt very much that your pre-amp's output impedance is so high. It's more likely to be less than 2k, in which case the HF roll-off would over 200kHz. Even a passive pre-amp made with a 20k pot has an output impedance of 5k or less.
As long as the cable is screened there shouldn't be a problem.
Active pre or passive pre? Probably it'll be fine either way though passive might possibly need checking out.
TT 1 Trans-Fi Salvation with magnetic bearing + Trans-Fi Terminator T3Pro + London Reference
TT 2 Garrard 301 with NWA main bearing + Audiomods Series Six 10.5" + Ortofon 2M Mono SE
Digital Lindemann Bridge + Gustard R26 with LB external clock
Pre and Power Amp EWA M40P + M40A
Bass Amp & DSP Behringer iNuke NU3000DSP x 2
Speakers 1 Bastanis Sagarmatha Duo with twin baffleless 15" bass drivers per side
Speakers 2 MarkaudioSota Viotti Tower
Interesting that RCA phono interconnects can be run ar reasonable lengths without too much loss or negative effect.
Can you explain why so many of the high end manufacturers are using balanced XLR connections when to get any benefit all cables in your system from source to end need to be XLR?
Main system : VPI Scout 1.1 / JMW 9T / 2M Black / Croft 25R+ / Croft 7 / Heco Celan GT 702
Second System : Goldring Lenco GL75 / AT95EX / Pioneer SX590 / Spendor SP2
IMO the use of balanced connections in a domestic audio situation is complex and contentious. It's a huge topic and I'd rather not go into immense detail but high frequency roll-off is a function of source impedance and cable capacitance - balanced or singled ended makes no difference.
The main advantage of a balanced line is noise rejection and that can be very important in a TV studio or a live venue but shouldn't really be an issue with 1m cable runs in a domestic setting.
Just to be a bit cynical for a moment (not like me, surely ) I think XLRs are sometimes used simply because they give the impression of being more professional, more serious and just "better".
Last edited by RothwellAudio; 20-01-2017 at 12:41. Reason: typo
Totally fine even with a passive. I often use a 10K passive with 8m of cable....
I'm with Andrew on the balanced option also. It's superfluous in domestic audio. Not only that but in many cases the equipment to be connected by balanced means is not truly balanced and the signal must pass through several op-amps to make it balanced at the sending end and then again at the receiving end to unbalance it.
This is sometimes done by a "line driver" IC and "line receiver" at the other end, which in fact contain the same circuitry as the op-amp circuitry.
Arkless Electronics-Engineered to be better. Tel. 01670 530674 (after 1pm)
Modded Thorens TD150, Audio Technica AT-1005 MkII, Technics EPC-300MC, Arkless Hybrid MC phono stage, Arkless passive pre, Arkless 50WPC Class A SS power amp, (or) Arkless modded Leak Stereo 20, Modded Kef Reference 105/3's
ReVox PR99, Studer B62, Ferrograph Series 7, Tandberg TCD440, Hitachi FT-5500MkI, also FT-5500MkII
Digital: Yamaha CDR-HD1500 (Digital Swiss army knife-CD recorder, player, hard drive, DAC and ADC in one), PC files via 24/96 sound card and SPDIF, modded Philips CD850, modded Philips CD104, modded DPA Little Bit DAC. Sennheiser HD580 cans with Arkless Headphone amp.
Cables- free interconnects that come with CD players, mains leads from B&Q, dead kettles etc, extension leads from Tesco
Thanks chaps. Grateful for the advice.