Sonice Impact (2024) Voltage

albee · « **on:** 22 Jan 2005, 02:53 pm »

When I first got my Powerwave I wrote Tripath and they said NOT to use a higher voltage that 12V on the 2024's. I respected that and got a 12V PS to use with both my PW and SI. Well, I also have a 13.8V for the 2020 board I used for a while. Last night I hooked it up to the SI and got much better performance out. I'm wondering if I continue to "overjuice" the SI if it will suffer heat damage or burn out? Anybody got any ideas about how this will effect the longevity. Gee, guys, this cost me $22--I have quite an investment here.

Ulas · « **Reply #1 on:** 22 Jan 2005, 04:30 pm »

Why not read the datasheet?

Absolute maximum ratings beyond which damage to the device may occur:
Supply voltage: 16V

Operating conditions for which the device is functional:
Supply voltage: 8.5V to 13.2V

Operating conditions at which the device meets performance specs:
Supply voltage: 12V

albee · « **Reply #2 on:** 23 Jan 2005, 01:30 am »

Here is a partial answer from Tripath about the 13.8V p/s. Since it was straight from the "horses mouth" I have puzzled over whether to use it or not. Sure sounds better than 12V.

"The power supply seems a good fit for a TA2020 or TA2021B. The TA2021B and TA2022 can run on supply voltages up to 14.6V. 13.8V is too high for TA2024."

I will continue to use the 13.8V p/s despite the heavy investment.

doug s. · « **Reply #3 on:** 23 Jan 2005, 05:01 am »

Quote from: albee

Here is a partial answer from Tripath about the 13.8V p/s. Since it was straight from the "horses mouth" I have puzzled over whether to use it or not. Sure sounds better than 12V.

"The power supply seems a good fit for a TA2020 or TA2021B. The TA2021B and TA2022 can run on supply voltages up to 14.6V. 13.8V is too high for TA2024."

I will continue to use the 13.8V p/s despite the heavy investment.

i'd suggest writing back with your observations about much better performance using 13.8v w/the 2024...

doug s.

albee · « **Reply #4 on:** 23 Jan 2005, 06:09 am »

doug s., I made some additional comments to Tripath about the sound of the board and they would not address any issue except the voltage. Thought it odd they didn't seem to care. Of course, Tripath is interested in selling 25K chips not bothering with a guy who bought one board.

RonD2 · « **Reply #5 on:** 23 Jan 2005, 02:23 pm »

[Of course, Tripath is interested in selling 25K chips not bothering with a guy who bought one board.]

I would tend to cut them some slack. Judging by their financial starements Tripath, the company, seems to be fighting for its life.

What speakers are you driving? I would think that relatively inefficient speakers, complicated crossovers, etc. would benefit from the increase in power at the higher voltage.

FWIW, I used a RS wall wart for about a week. It was supposed to be 12V but wound up measuring 14.8. The unit ran warm (not hot). This was almost 2 months ago. It has been running about 8 hours a day since (in an office system) off a 12V SLA and still plays great. It definitely runs cooler.

The 2024 does seem to be a great chip. Sharp is apparently putting it into some of its new LCD TVs.