Tripath Input Coupling Caps

[dekkersj]

Originally posted by Bobken
[...]

Every cap I have listened to (or through), and this must total almost thousands over some 40 yrs, does exibit quite noticeable differences, but one needs a reasonably high resolution system to readily hear these changes.

[...]

So you can distinguish quite easily between the two samples here: http://www.diyaudio.com/forums/showt...22#post1342622

Be my guest to prove your claim via ABX software or whatever.

Regards,
Jacco

[soongsc]

Originally posted by dekkersj

So you can distinguish quite easily between the two samples here: http://www.diyaudio.com/forums/showt...22#post1342622

Be my guest to prove your claim via ABX software or whatever.

Regards,
Jacco

Not everyone likes to listen to music through computers. Nor do many have quality sound cards other than the default on-board chips. Much more people have CD burning capability. Why not just provide more samples so that we tell you what we think and you tell us which is which?

[soongsc]

Originally posted by Bobken
Hi Keith,

...
In 99 out of 100 cases I have tried, placing the outer foil at the ground side in shunt positions, and at the 'output' in series locations, sounds better than the opposite way around. There are good theoretical reasons for this as the outer foil acts as a better shield against unwanted RFI pickup etc., when this is at the ground or lower ground-potential side in the circuits concerned.

...

Sounds like an interesting measurement to make to see if the differences can be measured. I did notice measurable differences directly related with preferences, but failed to keep track of the polarity during the last test session I did.

[dekkersj]

Originally posted by soongsc

Not everyone likes to listen to music through computers. Nor do many have quality sound cards other than the default on-board chips. Much more people have CD burning capability. Why not just provide more samples so that we tell you what we think and you tell us which is which?

You can burn the provided samples on a cd and listen to it on a regular audio set. The samples are not compressed or in a different way manipulated.

One of samples is a signal which has gone through an Audyn Cap Plus of 8.2 uF and the other one is the same set-up but with two 22 uF Panasonic elco's in series. 20 euro versus 0.68 euro and according to the claims this would give a tremendous difference in sound quality.

If you provide some cymbals I can redo the experiment with that sample. 10 to 30 seconds of material is enough.

Regards,
Jacco

[soongsc]

Originally posted by dekkersj

You can burn the provided samples on a cd and listen to it on a regular audio set. The samples are not compressed or in a different way manipulated.

One of samples is a signal which has gone through an Audyn Cap Plus of 8.2 uF and the other one is the same set-up but with two 22 uF Panasonic elco's in series. 20 euro versus 0.68 euro and according to the claims this would give a tremendous difference in sound quality.

If you provide some cymbals I can redo the experiment with that sample. 10 to 30 seconds of material is enough.

Regards,
Jacco

Ripping off a CD is something I have not tried before, but I'll see what I can do.

By the way, here's someone else in the Netherlands
http://www.humblehomemadehifi.com/Cap.html

[Pano]

Originally posted by dekkersj
One of samples is a signal which has gone through an Audyn Cap Plus of 8.2 uF and the other one is the same set-up but with two 22 uF Panasonic elco's.....

A good test and a good subject - FOR ANOTHER THREAD - please.

[Davet]

I connected the Radio Shack capacitors with the writing face down (CFD). I played a few selections from the test suite. I then reversed the orientation of the caps with the writing face up (CFU) and repeated the test suite selections.

I found the test suite selections played CFD yielded a soft withdrawn sound. Withdrawn is to say the performances did not have the presence experienced when the orientation was reversed. It just sounds as if the volume had been turned down a notch.

When CFU are tested, there is definitely more bass, thus the perception of greater presence than when CFU.

To my ears the more relaxed presentation was less fatiguing than when face up. The perception of less presence can be adjusted somewhat by increasing the volume.

So, yes, I hear a difference based on the orientation of these specific film capacitors. I would suspect that the same may be true of other film caps, but I have no plans to cinduct further test of cap orientation.

[Davet]

Originally posted by Tripath07
I purchased four of the RadioShack caps. I have the Trends TA-10.1, how do I exactly install these caps? How do I remove the Bennics? I tried to gently lift the Bennics out and they didn't move, so I thought I better get some advice first.

First, I would think the Bennics may sound better than the Radio Shacks. I have a TA-10.1, but I did not remove the caps from my TA=10.1 to test.

To remove the cap, place your soldering iron on one lead at the junction of the lead and the printed circuit board (PCB). Then, use pliers or tweezers to pull the lead from the board. I would suggest trying to heat the connection from the capacitor side of the board using pressure on the the iron to try to insure the solder pad on PCB doesn't lift.

The leads may be bent on the underside of the PCB. You may have to straighten this lead in order to remove the cap. Heat the connection and either straighten the lead or lift the cap.

To connect the RS caps in parallel take the two caps with the writing facing up on both. Wrap the lead of one of the caps around the lead of the other. Solder this connection and trim the lead of the soldered cap. Leave the other lead for mounting on the PCB. Repeat for the other lead: wrap, solder, and trim.

Repeat for the other two caps.

Use the non trimmed leads to mount the parallel caps on the TA-10.1 PCB.

The attached photo should help.

[Davet]

Originally posted by Tripath07
I purchased four of the RadioShack caps. I have the Trends TA-10.1, how do I exactly install these caps? How do I remove the Bennics? I tried to gently lift the Bennics out and they didn't move, so I thought I better get some advice first.

First, I would think the Bennics may sound better than the Radio Shacks. I have a TA-10.1, but I did not remove the caps from my TA=10.1 to test.

To remove the cap, place your soldering iron on one lead at the junction of the lead and the printed circuit board (PCB). Then, use pliers or tweezers to pull the lead from the board. I would suggest trying to heat the connection from the capacitor side of the board using pressure on the the iron to try to insure the solder pad on PCB doesn't lift.

The leads may be bent on the underside of the PCB. You may have to straighten this lead in order to remove the cap. Heat the connection and either straighten the lead or lift the cap.

To connect the RS caps in parallel take the two caps with the writing facing up on both. Wrap the lead of one of the caps around the lead of the other. Solder this connection and trim the lead of the soldered cap. Leave the other lead for mounting on the PCB. Repeat for the other lead: wrap, solder, and trim.

Repeat for the other two caps.

Use the non trimmed leads to mount the parallel caps on the TA-10.1 PCB.

The attached photo should help.

[Davet]

Originally posted by theAnonymous1

I wonder if Dave would be interested in trying one of the DC coupling circuits I cooked up for the Tripaths. I would like to know his impressions of it compared to all of his caps.

I am interested in trying/testing the DC Coupling Circuit you cooked up for the Tripaths. Please, direct me to th circuit.

As to the ABX Testing; Start an independent thread for this topic!

There is obviously, interest in this topic, but it has become "static on the line" for this thread. TIA.