Weirdest Tweak Ever

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James Tanner

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Weirdest Tweak Ever
« on: 11 Dec 2010, 12:39 pm »
Weirdest Tweak Ever

Hi Folks,

I bought a new turntable the other day and it reminded me about a very weird tweak I did many years ago. So I thought a thread discussing some of the strangest and weirdest system tweaks you have ever done to your system (whether they worked or not) might be good nostalgia! :D

My weirdest tweak was back in the day I had a Dynaco 400 amplifier that only had one power supply for both stereo channels. So in order to not deplete the power supply on large transients in one channel I reversed the tone-arm wires in my then turntable on ‘ONE’ side of the cartridge and the same on the corresponding speaker.  So the left side of the cartridge was wired out of phase and the left speaker was wired out of phase as well – thereby putting the left channel back in phase with the right channel.

This was supposed to allow the single power supply to operate more efficiently and with less strain or overload potential if a large transient was required on any one single channel.

james

Robert D

Re: Weirdest Tweak Ever
« Reply #1 on: 11 Dec 2010, 01:03 pm »
I bought a new turntable the other day

What did you Purchase James .


Robert

Napalm

Re: Weirdest Tweak Ever
« Reply #2 on: 11 Dec 2010, 01:42 pm »
Fess' it up James, you ordered these for Christmas:

http://www.shakti-innovations.com/hallograph.htm

Nap.  :D

James Tanner

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Re: Weirdest Tweak Ever
« Reply #3 on: 11 Dec 2010, 01:50 pm »
I bought a new turntable the other day

What did you Purchase James .


Robert

Hi Robert,

Wanted a table for room 3 - Thorens- with cartridge wired in phase :D.

james

rawbcca

Re: Weirdest Tweak Ever
« Reply #4 on: 11 Dec 2010, 02:36 pm »
Hi James,

What model, TD-???

James Tanner

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Re: Weirdest Tweak Ever
« Reply #5 on: 11 Dec 2010, 03:14 pm »

Elizabeth

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Re: Weirdest Tweak Ever
« Reply #6 on: 11 Dec 2010, 06:10 pm »
Wierdest tweak not appreciated by others:
Stuffing the DAC with antistatic grey foam.
This tweak was first mentioned by a guy from Holland in Stereophile years ago.
I stuffed my first DAC an Adccom DA600, and was happy.
Then a used Adcom DA700 was out there for $250. so I bought it and moved the stuffing from the 600 to the 700.
I find it really does make a difference. The foam stuffing soaks up all the stray EMF, and makes the end product (music signal) cleaner.
The Antistatic foam (cut into small shapes to fit most of the nooks and crannies)is wrapped in thick plastic and fills the interior of the case completely, or, for under the main board separated from the electrical contacts with a thin cardboard sheet.
However, a number of folks have totally dissed this mod. Either because they think it is a fire hazard (in a sealed chassis?) or they must just not like it? Anyway, NO ONE has ever tried it from my mentioning it, at least not reported back that they did.
Added: I originally used antistatic foam sheets from Radio Shack, but last year bought large (40" by 40" professional black foam) from a wholesaler. It took months to deliver! but now i have a lifetime supply!
Als, supposed to work in CD player, but the interior of most CD players is a crowded, convoluted nightmare and i never did add any to a CD player, though I opened some up and looking at it's innards.. gave up. To even put some under the main board would mean disassembling the player. No Way!
DACs are very flat straightforward inside in comparson.
So... Antistatic foam qualifies.. It definitely qualifies as a wierd tweak.

Napalm

Re: Weirdest Tweak Ever
« Reply #7 on: 11 Dec 2010, 06:15 pm »
Gluing the CD tray with epoxy, with your favorite CD inside. It stabilizes it forever.

Of course, if you have more than one favorite CD, you'll need several CD players. Just connect them to different inputs of the preamp.

nap.  :jester:

Elizabeth

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Re: Weirdest Tweak Ever
« Reply #8 on: 11 Dec 2010, 06:21 pm »
For CD players, you can add outdoor sealant (silicone) to the top puck holder to dampen vibrations. and around the chassis too. Get the non-smellly kind, as the vinegar smell is of the smelly sort is gut wrenching while it cures.

Ozi

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Re: Weirdest Tweak Ever
« Reply #9 on: 11 Dec 2010, 09:18 pm »
I always felt that ignoring so radical tweaks makes music listening more relaxed and enjoyable.
With tweaking there is no end, OTOH, cable dressing is always welcome.

Oz

1oldguy

Re: Weirdest Tweak Ever
« Reply #10 on: 11 Dec 2010, 09:34 pm »
I'm more of a plug and play type of guy.But i don't rule out that some things as far out as they may sound may indeed work.

Occam

Re: Weirdest Tweak Ever
« Reply #11 on: 12 Dec 2010, 12:24 am »
Weirdest Tweak Ever

Hi Folks,

I bought a new turntable the other day and it reminded me about a very weird tweak I did many years ago. So I thought a thread discussing some of the strangest and weirdest system tweaks you have ever done to your system (whether they worked or not) might be good nostalgia! :D

My weirdest tweak was back in the day I had a Dynaco 400 amplifier that only had one power supply for both stereo channels. So in order to not deplete the power supply on large transients in one channel I reversed the tone-arm wires in my then turntable on ‘ONE’ side of the cartridge and the same on the corresponding speaker.  So the left side of the cartridge was wired out of phase and the left speaker was wired out of phase as well – thereby putting the left channel back in phase with the right channel.

This was supposed to allow the single power supply to operate more efficiently and with less strain or overload potential if a large transient was required on any one single channel.

james

James,

Thats hardly a tweak, rather a sound engineering implementation based on the assumption that taxing signals are typically in phase, such as low frequency signals where content below (typically) 100 Hz, where they are mixed as an in phase, mono signal. With this implementation, while one channel is producing bass on one channel, say on the positive signal N channel (Mos or Bipolar) is using the positively charged power supply capacitors, the other channel is producing that (largely) same signal as a negative going signal on the P channel side, efficiently using the negatively charged ps capacitors.
This type of implementation also makes configuring that single ended stereo amplifier as a mono balanced bridged amplifier quite easy. Simply feed both stereo channels the same signal and take the outputs between the outputs of both channels.

The Carver switching amplifiers were configured like this.

FWIW,
Paul

James Tanner

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Re: Weirdest Tweak Ever
« Reply #12 on: 12 Dec 2010, 12:56 am »
James,

Thats hardly a tweak, rather a sound engineering implementation based on the assumption that taxing signals are typically in phase, such as low frequency signals where content below (typically) 100 Hz, where they are mixed as an in phase, mono signal. With this implementation, while one channel is producing bass on one channel, say on the positive signal N channel (Mos or Bipolar) is using the positively charged power supply capacitors, the other channel is producing that (largely) same signal as a negative going signal on the P channel side, efficiently using the negatively charged ps capacitors.
This type of implementation also makes configuring that single ended stereo amplifier as a mono balanced bridged amplifier quite easy. Simply feed both stereo channels the same signal and take the outputs between the outputs of both channels.

The Carver switching amplifiers were configured like this.

FWIW,
Paul

Hi Paul,

I stand corrected :D I just knew it sounded better. :thumb: 
Actually that was the start of one of the original ideas on the first Bryston amplifiers - dual power supplies.

james

vegasdave

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Re: Weirdest Tweak Ever
« Reply #13 on: 12 Dec 2010, 01:58 am »

nikon

Re: Weirdest Tweak Ever
« Reply #14 on: 12 Dec 2010, 02:40 am »
James

Are you still using Clever Clocks in your sound rooms

James Tanner

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Re: Weirdest Tweak Ever
« Reply #15 on: 12 Dec 2010, 03:41 am »
James

Are you still using Clever Clocks in your sound rooms

Yes - but they keep tuning into dumb watches :D

james

redbook

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Re: Weirdest Tweak Ever
« Reply #16 on: 16 Dec 2010, 09:42 pm »
This may not be really weird but I'm a believer in the physics of mass loading things in the audio chain ( to a point ). When I added 50 lbs of lead shot to the bottom of my speaker cabinets there was a profound effect on base tightness! :beer:

vegasdave

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Re: Weirdest Tweak Ever
« Reply #17 on: 16 Dec 2010, 10:09 pm »

Bring that to CES! :D

Please? haha.

rmurray

Re: Weirdest Tweak Ever
« Reply #18 on: 17 Dec 2010, 06:30 pm »
Don't knock if you don't know Vegasdave. Mass loading can do wonders . I have tried this with speakers and various transports and there is always some improvement in resolution. :dance:

satfrat

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Re: Weirdest Tweak Ever
« Reply #19 on: 17 Dec 2010, 06:35 pm »
James

Are you still using Clever Clocks in your sound rooms

Thanks for reminding me I need to replace the batteries in a few of mine.  :thumb:
 
Cheers,
Robin