Help me build speaker cables please!


Howdy!
I’m looking for input on some home brewed speaker cables. I’m currently using cables I made from braiding 8 lengths of CAT 5 plenum cable together. They’re terminated in silver plated BFA bananas and set up as a biwire configuration at the speaker end. I love their sound, but think I’m ready to try something made from higher grade metal. I’ve been doing a lot with silver in my system and have loved the change in sound almost every time I’ve gone from Cu to Ag. The only place I like Cu better is in the PCs for my amps. That said, I’m leaning heavily towards making a set of solid silver speaker cables, using .999 silver wire from Rio grande. I’ll insulated them with teflon spaghetti tubing and possibly terminate them with silver plated BFAs.

Where I’d love some input is here: do I do one run of 10awg, or biwire 12awg to the woofers, 14awg to the tweeters and mids? I’m using a dared tube preamp and monoblock Ghent audio class D amps (500w into 4 ohm) which drive floor standing RBH 1266 SE/R speakers. They are 4 ohm and have side firing 12" speakers. They like a lot of juice and sound their best when given what they want, hence my desire for large diameter cables.

Cost wise, it’s only $50 more expensive to biwire. I liked the change in sound when I first biwired, but I also went from blue jeans twisted pair 12 awg to my braided CAT 5, which has a combined 9 awg. So I’m not sure if it was the biwiring or all the other differences that improved the sound.

Also, any other ideas for superb sounding DIY SCs are welcome.

Danke!
128x128toddverrone
@toddverrone - irie mon ! break out de Red Striiipe :-)

How About...

The Golden Age of Wireless by Thomas Dolby - a-m-a-z-i-n-g !

Business as Usual by Men at Work - super-fast dynamics and superb clarity

Any track by Police and U2 - so crisp

All are on vinyl ;-)

But the digital stuff sounds great also.

I never appreciated just how well recorded Fleetwood Mac is - until now!

I’m very glad you are hearing the same improvements as me - especially since you are using different conductors

I think it "proves" the geometry is the key "ingredient".
- The type of conductor would probably allow/deny small refinements in details.

Lav and Pearl - did you get the pink vinyl ? - it’s reeel purrrtie :-)

I downloaded the MP# and it sounds pretty good - I’l have to to try get a high res version.

Best analogy I can think of -
- with my old cables - it’s like drinking filtered tap water
- with the Helix cables - you’re drinking flavoured Perrier

Chat Later - Steve

Ha! Yeah, I do have the​ pink vinyl. It's the only one they did. You should be able to find their stuff on Bandcamp in a variety of download formats including alac and wav. I love Bandcamp for that.

Unfortunately I miswired one of the helix RCAs I built. And of course this is the first DIY cable I didn't test, so it killed one of my amps. Which sucks, because I have almost all the parts needed for my speaker cables now.. alas. So it'll be a bit before I can report back. 😛
@toddverrone  - Ouch! - how did incorrect wiring  an IC kill your amp?

That's interesting - did it short the input to the amp ? most amps can handle that. Unless you shorted the pre-amp output?

Also, doesn't sound as though you were using a Harmony RCA - because it's almost impossible to create an accidental short condition with those (one of the things I really like).

Hmmm - what did you do?

Finally, I have a Blusound Powernode 2 amplifying my TV, so I gave it the speaker cable upgrade...

- These cables really do show just how good the new amplifier designs really are
- The Powernode 2 is 50 watt per channel into 8 ohms, class D
- into a pair of Tannoy Mecury F4 -  91dB 8 ohms 34Hz - 20kHz

Since the Power Node 2 only has an Ethernet cable (for music) and an optical cable for input for from the TV, the only copper cables in the audio pipeline are my DIY speaker cables.

Immediately, the dynamics, deep bass performance and bass control improvements were very noticeable. 

Perhaps the biggest and most noticeable improvement is the clarity.

The diminutive Powernode 2 now exerts complete control over the Tannoys with lots of power to spare and the TV sounds the best it's ever sounded, except there are no rear speakers anymore - a choice I made when downsizing the A/V system to fit the new house.

Even the shortest Helix speaker cables I have made is on my mini system (around 15" each channel) ,also yields significant improvements. 

So it does not seem to matter how long you make them - the appear to work very well.

Regards...

Steve - my amp has risen from the dead! And the new ICs sound great!

Full story - I was making the helix ICs at 1 am and accidentally soldered the ground to the signal and the signal to the ground. It wasn’t an accidental short in terms of a stay wire touching something it shouldn’t. I just plain screwed up. Upon installation, my system just started making a clicking noise. I pulled the ICs and tested them for continuity, realizing I miswired them. I fixed my mistake and upon reinstalling found that the amp the mistake was plugged into kept dropping out and distorting. There next day it would barely put out any sound. I was ready to buy new monos and thought I’d double check that it was the amp. I put the amp back in the system and it all works fine.

I did disconnect everything from the ICEpower board and reinstall it all. I don’t that was what helped, but I don’t care, it works!

I’m still listening to them, but initial findings on the helix ICs are incredibly positive. More of the helix magic: less noise, greater clarity, better separation of sound sources. Good stuff!
@toddverrone - that’s very interesting - sounds as though pushing the signal onto the neutral rail of the amp caused some issue - normally it only causes an out of phase condition - i.e. bad image and poor bass.

Anyhow, glad to hear nothing in the system was damaged and it’s up and running and sounding good.

Remember, burn-in takes a while - +200 hours to get the smoothness these cables can offer.

Right now I’m finding with the speaker cables on my Powernode 2 (the A/V system) - the system is sounding very bright - almost to the pint of appearing "brittle". But my two channel system is telling me this too will pass - it is very smooth (+250 hours of playing)

Did you finalize the wire you are using on the speaker cables?

Keep me posted on the conductors you settle on and how it sounds once you have some hours playing.

BTW - I just looked at your system (nice photos and very nice components) I think I spotted a digital cable?
- The Helix IC’s with the Harmony plugs can also be used as a digital SPDIF cable
- they do not suffer from the digital glare as some normal digital cables do
- it’s all to do with the impedance of the Harmony RCA’s eliminating "internal electron congestion/reflections"
- That’s why on 70 ohm Coax has to have a 70 ohm RCA

I tried several RCA/Signal conductor combinations and found ...
- you do not have to use solid silver for the signal - good small gauge copper will do.
- you can use Silver Harmony RCA’s
- the more expensive RCA’s were no more effective.
- I still used the same quality neutral conductor.

This was testing with 24/192 digital signals - higher than that might require better RCA’s and conductor - but I’m not going there.

I started out building the Helix with CAT5 + Absolute Harmony RCA’s to prove the theory...
- I found it surpassed my store bought digital cable
- using better conductors + Absolute Harmony sealed the deal.
- I then stepped back from the Absolute Harmony RCA’s to Pure Harmony and finally Silver Harmony.
- The Silver Harmony work flawlessly!
- I did not try the Copper Harmony because I found them to be much less effective on the analogue IC’s

Hope that helps

WRT...
I’m still listening to them, but initial findings on the helix ICs are incredibly positive. More of the helix magic: less noise, greater clarity, better separation of sound sources. Good stuff!
Good Stuff indeed! :-)

Regards...