Thanks. Just asking because it is my experience that other TPA3116D2 sounds better without OP amp. What is the best, small TPA3255 MONO board?Most TPA3255 boards have some sort of op amp already mounted.
Other than that it might be handy to have some sort of tone control unless you use DSP, but to answer your question directly: You do not need an additional pre amp, unless it brings some features to the table that you want to have.
Thanks. MONO board ?A TPA3255 stereo board or amplifier should be enough for 8-4ohm loads. If you only use 4-2ohm loads a TPA3251 might be better.
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Example?Sorry about the typo, yes, replace stereo with mono in my previous post. 3251 for 4-2 Ohm or 3255 for 8-4 Ohm.
This is a mono version TPA3255, toggle switch for 95Hz lowpass filter if you want to use it for a subwoofer.
https://www.ebay.com/itm/274906227497
I do not know anything about the quality of this product, I mostly have original EVM's from TI in house.
Not many mono boards for TPA3251 around.
https://www.ebay.com/itm/274906227497
I do not know anything about the quality of this product, I mostly have original EVM's from TI in house.
Not many mono boards for TPA3251 around.
That's true. I guess he just needs MO POWER. Then a Zobel network.In this case, power will be consumed in the Zobel circuit (parallel connection). The power in the speaker coil will not change.
This thread is useless without a +51V or higher power supply.
You can argue EQ, Op Amps, 1ohm speakers or the phase of the Moon until the cows come home, no TPAxxxx or any other amp, chipamp or discrete will put out 200W into 6 ohm as required without such a supply.
You can argue EQ, Op Amps, 1ohm speakers or the phase of the Moon until the cows come home, no TPAxxxx or any other amp, chipamp or discrete will put out 200W into 6 ohm as required without such a supply.
He seems new to this field, and other posts also show some lack of basics.
And who needs so much power at home?
From a 3" x 4" x 1.5" housing, so 18 cubic inches.
A small home amplifier is about 10" wide x 10" deep x 4" high, so 400 cubic inches....and is rated 20W x 2, generally used at much lower settings.
The requirement is unrealistic, or fantastic...either description is suitable, depending on personal opinion.
And who needs so much power at home?
From a 3" x 4" x 1.5" housing, so 18 cubic inches.
A small home amplifier is about 10" wide x 10" deep x 4" high, so 400 cubic inches....and is rated 20W x 2, generally used at much lower settings.
The requirement is unrealistic, or fantastic...either description is suitable, depending on personal opinion.
He wants a box smaller than 18 in3 that will use less than 144W to produce more than 200W. In short, something forbidden to muggles.
The power of class D amplifiers per unit volume is greater due to the high efficiency and the use of SMPS. High powers are achieved in ICEPower, Hipex ...when using an adequate power supply.
Sound power can be increased by using many speakers, each with its own amplifier and active filtering. Home multiband speakers with passive filters are of little use for this.
Sound power can be increased by using many speakers, each with its own amplifier and active filtering. Home multiband speakers with passive filters are of little use for this.
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Hello,Is TDA7498E a good chip ?
Yes, I think it's a good chip, you get a lot of power for the money.
I purchased my TDA7498E class D amp 2 years ago, connected it to my computer and my Technics SB-X3 old speakers and played some FLAC and APE music files, some CD quality, other 24-bit Hi-Res and I have to tell you that I'm astonished by the sound quality.
I just purchased the cheapest I could find in Aliexpress, it cost me only € 17,69 and it included an acrylic box similar to this:
Maybe the price is a little more expensive now.
Please pay attention that there are a lot of different models and some can have fake or non-appropriated components.
For example, I saw in a review that the amplifier came with the output filter that it's simply wrong for 4 ohms. Another manufacturer might well have it correct but not in the case of the reviewed amplifier. Also for power output, few of any type of chips will give the rated power. 32 volts is simply not high enough but that is what they recommend.
But I'm happy with the sound quality and I use my TDA7498E class D amplifier with a 4 ohms speakers and a 32V 5A power supply, I do not get the rated power but I might get around 90W per channel with my Technics SB-X3 4 ohms speakers which is very good for the price.
Alex
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