DIY thoughts of the day

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karatestu
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DIY thoughts of the day

Unread post by karatestu » Fri Mar 16, 2018 1:19 pm

Not a day goes by without my thoughts turning to my sound system and what I am going to do with it. Often I drift off to sleep thinking about it. Have I got a problem ? Yes I think so :grin: but it's better than being an alcoholic or druggie.

Thought no.1 for today - need to sort that speaker out.
No.2 - if there is an improvement with using two mono stepped attenuators, would there be an improvement by using mono selector switches ? Bit of a pain having to use two switches but what the hell, its not that bad. Also could have 2 different tracks playing at once :lol:
Naim, Linn & Harbeth fanboy

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Dr Bunsen Honeydew
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Re: DIY thoughts of the day

Unread post by Dr Bunsen Honeydew » Fri Mar 16, 2018 1:30 pm

Yes some, less crosstalk across the switch.

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karatestu
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Re: DIY thoughts of the day

Unread post by karatestu » Fri Mar 16, 2018 1:41 pm

Dr Bunsen Honeydew wrote:
Fri Mar 16, 2018 1:30 pm
Yes some, less crosstalk across the switch.
That was my guess. Might give it a go, although at the moment I don't have a selector switch at all :dance: Unfortunately I will need one eventually :( . Couple of rocker switches might be good.
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Lurcher300b
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Re: DIY thoughts of the day

Unread post by Lurcher300b » Fri Mar 16, 2018 2:50 pm

No.2 - if there is an improvement with using two mono stepped attenuators, would there be an improvement by using mono selector switches ? Bit of a pain having to use two switches but what the hell, its not that bad. Also could have 2 different tracks playing at once
Maybe also worth trying (and not lots of cash) two mono TOCOS pots, the problem with the stereo version was matching, using two solves that.

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karatestu
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Re: DIY thoughts of the day

Unread post by karatestu » Fri Mar 16, 2018 3:33 pm

Lurcher300b wrote:
Fri Mar 16, 2018 2:50 pm

Maybe also worth trying (and not lots of cash) two mono TOCOS pots, the problem with the stereo version was matching, using two solves that.
Nick, you are not the first person to mention TOCOS. Are they really that good ? I was talking about mono selector switches really but thanks for the input.

The thing with mono selector and volume control is that I can put one of each right next to my power amp boards (snug up to the back panel) and still have a distance of 40cm between them and the transformers. A couple of 6mm dowel extension rods to the knobs on the front panel and bobs ya uncle. I can in theory make two mono intergrated amps (with each amp containing two totaly separate power amps for 1)bass 2) mid & tweeter.) :dance:
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Lurcher300b
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Re: DIY thoughts of the day

Unread post by Lurcher300b » Fri Mar 16, 2018 3:43 pm

They are good, not sure how good "that good" is but it was just a thought. :-)

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karatestu
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Re: DIY thoughts of the day

Unread post by karatestu » Fri Mar 16, 2018 4:19 pm

Lurcher300b wrote:
Fri Mar 16, 2018 3:43 pm
They are good, not sure how good "that good" is but it was just a thought. :-)
Okay dokey.

Thoughts now turn to interconnects. My Naim CDP has only one 0V connection to the preamp. Idea was this - get TIS cables made up so each cable has all it's conductors electrically joined. So that would be one whole cable for left signal, another for right signal and a third for 0V. I know it may be a bonkers idea and increase cost as I need a third TIS cable. My thinking was it would put distance between signal & 0V thus reducing capacitance.

Taking the idea further to connections between pre and mono bloc power amps - one cable for signal the other for 0V. Doubles the amount of cables you need but might be worth it ? :think: :think: :think:
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