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Practical advice on speaker cables please ?
I'm aware of the never ending discussion on interconnects and speaker
cables, but I just want some advice on what to actually buy. Nominal impedance of speakers is 6 ohms. Room is quite large and so amp/speaker distance will be 4-5 meters. Speakers are bi-wired. I just need an idea of cross-sectional area and where I can get some suitable cable. I'm not convinced by the talk of OFC and so on. Multistranded copper of sufficient thickness is fine by me. Suggestions please ? Jo |
Practical advice on speaker cables please ?
"Jo" wrote in message ... I'm aware of the never ending discussion on interconnects and speaker cables, but I just want some advice on what to actually buy. Nominal impedance of speakers is 6 ohms. Room is quite large and so amp/speaker distance will be 4-5 meters. Speakers are bi-wired. I just need an idea of cross-sectional area and where I can get some suitable cable. I'm not convinced by the talk of OFC and so on. Multistranded copper of sufficient thickness is fine by me. Suggestions please ? Jo Just get a decent thick cable, 2.5mm mains or bigger - or preferably flex - will do. You are right, there is much rubbish spoken and snake oil out there, but given that you have a fairly long run then thicker cable is best so that it doesn't become significant in the damping factor of the speaker/amp interface. (Mail me off-net if you want that explained.) -- Woody harrogate3 at ntlworld dot com |
Practical advice on speaker cables please ?
"Jo" schreef in bericht ... I'm aware of the never ending discussion on interconnects and speaker cables, but I just want some advice on what to actually buy. Nominal impedance of speakers is 6 ohms. Room is quite large and so amp/speaker distance will be 4-5 meters. Speakers are bi-wired. I just need an idea of cross-sectional area and where I can get some suitable cable. I'm not convinced by the talk of OFC and so on. Multistranded copper of sufficient thickness is fine by me. Suggestions please ? Jo I would say 6mm2 multistranded would perfectly do the job. I use that on my Tannoy R2/NAD320i; no problems at all. YMMV, Folkert/NL |
Practical advice on speaker cables please ?
"Jo" wrote in message ... I'm aware of the never ending discussion on interconnects and speaker cables, but I just want some advice on what to actually buy. Nominal impedance of speakers is 6 ohms. Room is quite large and so amp/speaker distance will be 4-5 meters. Speakers are bi-wired. I just need an idea of cross-sectional area and where I can get some suitable cable. I'm not convinced by the talk of OFC and so on. Multistranded copper of sufficient thickness is fine by me. Suggestions please ? Jo Before I went over to active 'speakers, I have used two cables:- QED 79 strand is inexpensive and goes into a banana plug easily. It also solders well if you want to attach it to spade terminals, or just tin the ends. The second cable I have used is 30 amp car wiring cable. Available in several colours, I took two lengths of red and black cable and twisted them together using a hand-drill. As with the QED cable, it solders well, and, if these things matter, had an interesting "technical" look about it. I did once try one of the woven high-capacitance cables, as I got it very cheap, but some amplifiers (Naim for instance) get upset by the high capacitance, so it's not of universal application. Ordinary ring-main cable works well technically, but it is stiff and difficult to get to lie flat. By the way, unless you have a specific reason for doing so, bi-wiring is only a way of getting more copper between your amplifier and 'speakers. It won't be necessary if the cables are thick enough, even over the 4-5 metre length you're using. S. |
Practical advice on speaker cables please ?
|
Practical advice on speaker cables please ?
In ,
Tony Gartshore typed: I can vouch for the fact that the electrons do manage to struggle through a five metre length of it. That made me laugh. Yes, skin effect, grain boundaries, oxygen and other impurities notwithstanding, they do make it somehow. Jo |
Practical advice on speaker cables please ?
In ,
harrogate2 typed: "Jo" wrote in message ... I'm aware of the never ending discussion on interconnects and speaker cables, but I just want some advice on what to actually buy. Nominal impedance of speakers is 6 ohms. Room is quite large and so amp/speaker distance will be 4-5 meters. Speakers are bi-wired. I just need an idea of cross-sectional area and where I can get some suitable cable. I'm not convinced by the talk of OFC and so on. Multistranded copper of sufficient thickness is fine by me. Suggestions please ? Jo Just get a decent thick cable, 2.5mm mains or bigger - or preferably flex - will do. You are right, there is much rubbish spoken and snake oil out there, but given that you have a fairly long run then thicker cable is best so that it doesn't become significant in the damping factor of the speaker/amp interface. (Mail me off-net if you want that explained.) Thanks, I know about damping factor and the need to keep cable resistance well below actual speaker impedance across the audio range. I did some rough calcs and came up with a figure of 3-4 sq mm and was curious about what the experts here suggested. Jo |
Practical advice on speaker cables please ?
In article , Jo wrote:
I'm aware of the never ending discussion on interconnects and speaker cables, but I just want some advice on what to actually buy. Nominal impedance of speakers is 6 ohms. Room is quite large and so amp/speaker distance will be 4-5 meters. Speakers are bi-wired. I just need an idea of cross-sectional area and where I can get some suitable cable. I'm not convinced by the talk of OFC and so on. Multistranded copper of sufficient thickness is fine by me. Suggestions please ? Go to B&Q and buy some of their loudspeaker cable. The copper is nice and thick, with lots of strands, and easily good enough for 4-5 metres. Rod. |
Practical advice on speaker cables please ?
"Jo" wrote in message ... In , harrogate2 typed: "Jo" wrote in message ... I'm aware of the never ending discussion on interconnects and speaker cables, but I just want some advice on what to actually buy. Nominal impedance of speakers is 6 ohms. Room is quite large and so amp/speaker distance will be 4-5 meters. Speakers are bi-wired. I just need an idea of cross-sectional area and where I can get some suitable cable. I'm not convinced by the talk of OFC and so on. Multistranded copper of sufficient thickness is fine by me. Suggestions please ? Jo Just get a decent thick cable, 2.5mm mains or bigger - or preferably flex - will do. You are right, there is much rubbish spoken and snake oil out there, but given that you have a fairly long run then thicker cable is best so that it doesn't become significant in the damping factor of the speaker/amp interface. (Mail me off-net if you want that explained.) Thanks, I know about damping factor and the need to keep cable resistance well below actual speaker impedance across the audio range. I did some rough calcs and came up with a figure of 3-4 sq mm and was curious about what the experts here suggested. Jo It is nothing to do with the speaker load impedence, rather the amp output impedence. When the loudspeaker cone is extended by signal, if the signal is removed then it is down to the mechanics of the cone mount to return it to its rest position - except that it won't, it will follow a decaying oscillation path. During this time, as the voicecoil is now being moved mechanically in a magnetic field it becomes a generator, so the lower the load that it sees - in this case the output impedence of the amp plus cable resistance - the quicker the energy will be dissipated. As an amp output impedence is typically around 0.1R (or less sometimes) then the resistance of a thinner cable can become significant, hence why thick is better. I used to have a pair of BIG transmission line loudspeakers that could rattle windows at 10 paces with only a few watts! I used 6mm power cable used in the mobile radio industry (where I work) and they were more than happy. When we moved to this house I initially couldn't get under the floor to run the bigger cables so I ran some 0.75mm mains cable - and the sound was AWFUL!! Bloated flabby bass with considerable loss of LF detail (amongst other things we like pipe organ music, the penalty of having a father-in-law who is an organist!) When I fitted the thicker cable normality was restored. -- Woody harrogate3 at ntlworld dot com |
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