Improving bass in the Tripath TA2020

whaleman · 19th November 2010, 11:57 PM

Probably a common complaint with this chip and some speakers is the lack of bass with its low power output (13 watts/8 ohms).

I am going back into an amp we built and doubling the capacitance on the filtering caps (we installed 6,000 uf, I am going for 48,000 uF since I have the space). Just built one with about that much and it works great, no problems with bass but I have good speakers.

I am using a linear power supply. Since I will be in it, let me know what you've tried that works.

This is the Helder TA2020 MKIII, I am also thinking of replacing the red input caps with Daytons.

If I replace the input caps from 2.2 uF to 5.6 uF, will I notice a bit more bass emphasis?

Thanks for your input.

Saturnus · 20th November 2010, 02:04 AM

If you do then please tell us. I have never experienced anything (positive) happening by doing that, and I really don't get why people would think they are "thin" in the bass, the right noun would be "precise" because they're not as "flobby" as most run-of-the-mill amps.

carlsbad64 · 20th November 2010, 05:33 AM

add the tube preamp. The Sylvania Jan 5963 adds a perfect amount of bass. I no longer have the desire to use any EQing with my current setup.

whaleman · 20th November 2010, 12:07 PM

Quote:

Originally Posted by carlsbad64

add the tube preamp. The Sylvania Jan 5963 adds a perfect amount of bass. I no longer have the desire to use any EQing with my current setup.

I tried this setup with the TK2050 and got a few tubes to roll in, including two NOS JAN 6189, the TA2020 MKIII has more bass by itself. The tube does add some nice magic, but not in the lowest frequencies, at least to my ears.

Kaizen22 · 20th November 2010, 04:53 PM

I'm not sure if this is strictly true, but if you were to measure the voltage across the capacitors while the amp was being run hard (with some bass heavy program material), if the lack of perceived bass was being caused by PSU deficiencies (inc. a lack of capacitance to ensure sufficient current delivery for the transients), would you notice a voltage drop?

If so, that might be a way of telling whether adding more caps would make a difference?

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20th November 2010, 02:04 AM	#2
Saturnus diyAudio Member Join Date: Jun 2005 Location: Copenhagen, Denmark	If you do then please tell us. I have never experienced anything (positive) happening by doing that, and I really don't get why people would think they are "thin" in the bass, the right noun would be "precise" because they're not as "flobby" as most run-of-the-mill amps.

20th November 2010, 05:33 AM	#3
carlsbad64 diyAudio Member Join Date: Oct 2009	add the tube preamp. The Sylvania Jan 5963 adds a perfect amount of bass. I no longer have the desire to use any EQing with my current setup.

20th November 2010, 04:53 PM	#5
Kaizen22 diyAudio Member Join Date: Jan 2010	I'm not sure if this is strictly true, but if you were to measure the voltage across the capacitors while the amp was being run hard (with some bass heavy program material), if the lack of perceived bass was being caused by PSU deficiencies (inc. a lack of capacitance to ensure sufficient current delivery for the transients), would you notice a voltage drop? If so, that might be a way of telling whether adding more caps would make a difference?

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