Yima Top via Amazon has AIYIMA A07 Class D 2-Channel Dual 300W Amplifier (TPA3255) on sale for $59.99 when you clip the 25% off coupon on the item page. Shipping is free.
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Model: AIYIMA A07 TPA3255 Power Amplifier 300Wx2 HiFi Class D Stereo Digital Audio Amp 2.0 Channel Amplifier for Passive Speaker Home Audio (A07+DC 32V Power Adapter)
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This is a great amp for the price. The TPA3255 is a bit of a beast. From crap outputs like a tv or a low/mid range motherboard there is some signal noise which is unfortunate. I'd recommend a DAC if you get this, also upgrade to a 48v PSU for another $25 or so. This is probably the most power out of a mini-amp you can get for under $100.
These are the specs from Texas Instruments website:
Total Output Power at 10%THD+N
315-W Stereo into 4 Ω in BTL Configuration
185-W Stereo into 8 Ω in BTL Configuration
600-W Mono into 2 Ω in PBTL Configuration
Total Output Power at 1%THD+N
260-W Stereo into 4 Ω in BTL Configuration
150-W Stereo into 8 Ω in BTL Configuration
480-W Mono into 2 Ω in PBTL Configuration
Note that you do have to upgrade the power supply to 48V if you want to get the 75w per channel, otherwise you'll be getting about 56w per channel out of the box with the included 32V PSU.
But 75W per channel at 8 Ω is still really good for an amp of this size and cost, it is similar to most low end receivers that cost $300 to $600 (Denon AVR-S760H for example)
Oh suuuure it will output 300 watts. Right before it bursts into flames because you'd have to overvolt the sh!t out of it to obtain those numbers. I'm sure it's great for bookshelf speakers and very efficient larger speakers though.
With the included power supply (32V 5A) this baby puts out 77 Wpc @ 4 ohm and 48 Wpc @ 8 ohm. Thats pretty good for the price and size; signal to noise is not great though.
For the low-end, at 20 Hz, max power drops to 55W @ 4 ohm.
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Oh suuuure it will output 300 watts. Right before it bursts into flames because you'd have to overvolt the sh!t out of it to obtain those numbers. I'm sure it's great for bookshelf speakers and very efficient larger speakers though.
Our community has rated this post as helpful. If you agree, why not thank joeyrindone
01-02-2024 at 09:55 AM.
This is a great amp for the price. The TPA3255 is a bit of a beast. From crap outputs like a tv or a low/mid range motherboard there is some signal noise which is unfortunate. I'd recommend a DAC if you get this, also upgrade to a 48v PSU for another $25 or so. This is probably the most power out of a mini-amp you can get for under $100.
These are the specs from Texas Instruments website:
Total Output Power at 10%THD+N
315-W Stereo into 4 Ω in BTL Configuration
185-W Stereo into 8 Ω in BTL Configuration
600-W Mono into 2 Ω in PBTL Configuration
Total Output Power at 1%THD+N
260-W Stereo into 4 Ω in BTL Configuration
150-W Stereo into 8 Ω in BTL Configuration
480-W Mono into 2 Ω in PBTL Configuration
Note that you do have to upgrade the power supply to 48V if you want to get the 75w per channel, otherwise you'll be getting about 56w per channel out of the box with the included 32V PSU.
But 75W per channel at 8 Ω is still really good for an amp of this size and cost, it is similar to most low end receivers that cost $300 to $600 (Denon AVR-S760H for example)
This is a great amp for the price. The TPA3255 is a bit of a beast. From crap outputs like a tv or a low/mid range motherboard there is some signal noise which is unfortunate. I'd recommend a DAC if you get this, also upgrade to a 48v PSU for another $25 or so. This is probably the most power out of a mini-amp you can get for under $100.
These are the specs from Texas Instruments website:
Total Output Power at 10%THD+N
315-W Stereo into 4 Ω in BTL Configuration
185-W Stereo into 8 Ω in BTL Configuration
600-W Mono into 2 Ω in PBTL Configuration
Total Output Power at 1%THD+N
260-W Stereo into 4 Ω in BTL Configuration
150-W Stereo into 8 Ω in BTL Configuration
480-W Mono into 2 Ω in PBTL Configuration
Note that you do have to upgrade the power supply to 48V if you want to get the 75w per channel, otherwise you'll be getting about 56w per channel out of the box with the included 32V PSU.
But 75W per channel at 8 Ω is still really good for an amp of this size and cost, it is similar to most low end receivers that cost $300 to $600 (Denon AVR-S760H for example)
I've read somewhere that class D amps aren't great for powering transducers vs Class A/B amps. I'd be curious how this would power a pair of Earthquake transducers vs the current old school Rotel amp I have making them shake my couch now. Anyone have experience with this amplifier to power some tranducers/bass shakers?
I believe my old school rotel amp is rated somewhere around 100 WPC RMS at 4 ohms, I suspect the ratings for this are dynamic?
I'll second the good reviews. I bought the version with Bluetooth and sub line out for my deck speakers and tested in the house first. Worked great with a pair of Infinity R263 towers. It's on sale for $80 now.
AIYIMA A07 Pro TPA3255 Stereo Amplifier Bluetooth 5.2 300Wx2 HiFi Class D Amp 2.0/2.1 Channel Audio Power Amp for Speaker with Bass Treble Control& Line Output + Power Adapter (A07 PRO) https://a.co/d/2IKvajB
I use this amp on a switched CD listening and phono setup to Wharfdale Diamond 225s in a stereo setup.and its excellent for what it costs. I use it with a Schitt Modi 3 DAC and it sounds pretty great.
They have the 3E on closeout right now for $99 https://www.schiit.com/b-stocks
I've read somewhere that class D amps aren't great for powering transducers vs Class A/B amps. I'd be curious how this would power a pair of Earthquake transducers vs the current old school Rotel amp I have making them shake my couch now. Anyone have experience with this amplifier to power some tranducers/bass shakers?
I believe my old school rotel amp is rated somewhere around 100 WPC RMS at 4 ohms, I suspect the ratings for this are dynamic?
No they can handle them as long as they can actually supply the current needed (forget about the bogus rating on the box). There just isn't any extra headroom. You might want to look at a class D sub amp for your situation. I use one for my bass shakers. https://a.co/d/3GVutyw
The cheap class D might not sound as good as an A/B for speakers. The new premium class D sounds very good with low distortion.
With the included power supply (32V 5A) this baby puts out 77 Wpc @ 4 ohm and 48 Wpc @ 8 ohm. Thats pretty good for the price and size; signal to noise is not great though.
For the low-end, at 20 Hz, max power drops to 55W @ 4 ohm.
Seems like assuming you want something close to full power you'd be better off buying it direct from their site with a bigger PSU included since the one at this price is only going to get you about half the claimed power.
I got the Fosi equivilent of this, and wish I got one with tone control.
I use it for a jump from 9.2 to 11.2 surround channels, I thought Audyssey calibration would make my height channels even but my Fosi class D has more bass and recessed highs
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These are the specs from Texas Instruments website:
Total Output Power at 10%THD+N
315-W Stereo into 4 Ω in BTL Configuration
185-W Stereo into 8 Ω in BTL Configuration
600-W Mono into 2 Ω in PBTL Configuration
Total Output Power at 1%THD+N
260-W Stereo into 4 Ω in BTL Configuration
150-W Stereo into 8 Ω in BTL Configuration
480-W Mono into 2 Ω in PBTL Configuration
Note that you do have to upgrade the power supply to 48V if you want to get the 75w per channel, otherwise you'll be getting about 56w per channel out of the box with the included 32V PSU.
But 75W per channel at 8 Ω is still really good for an amp of this size and cost, it is similar to most low end receivers that cost $300 to $600 (Denon AVR-S760H for example)
With the included power supply (32V 5A) this baby puts out 77 Wpc @ 4 ohm and 48 Wpc @ 8 ohm. Thats pretty good for the price and size; signal to noise is not great though.
For the low-end, at 20 Hz, max power drops to 55W @ 4 ohm.
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Our community has rated this post as helpful. If you agree, why not thank joeyrindone
These are the specs from Texas Instruments website:
Total Output Power at 10%THD+N
315-W Stereo into 4 Ω in BTL Configuration
185-W Stereo into 8 Ω in BTL Configuration
600-W Mono into 2 Ω in PBTL Configuration
Total Output Power at 1%THD+N
260-W Stereo into 4 Ω in BTL Configuration
150-W Stereo into 8 Ω in BTL Configuration
480-W Mono into 2 Ω in PBTL Configuration
Note that you do have to upgrade the power supply to 48V if you want to get the 75w per channel, otherwise you'll be getting about 56w per channel out of the box with the included 32V PSU.
But 75W per channel at 8 Ω is still really good for an amp of this size and cost, it is similar to most low end receivers that cost $300 to $600 (Denon AVR-S760H for example)
These are the specs from Texas Instruments website:
Total Output Power at 10%THD+N
315-W Stereo into 4 Ω in BTL Configuration
185-W Stereo into 8 Ω in BTL Configuration
600-W Mono into 2 Ω in PBTL Configuration
Total Output Power at 1%THD+N
260-W Stereo into 4 Ω in BTL Configuration
150-W Stereo into 8 Ω in BTL Configuration
480-W Mono into 2 Ω in PBTL Configuration
Note that you do have to upgrade the power supply to 48V if you want to get the 75w per channel, otherwise you'll be getting about 56w per channel out of the box with the included 32V PSU.
But 75W per channel at 8 Ω is still really good for an amp of this size and cost, it is similar to most low end receivers that cost $300 to $600 (Denon AVR-S760H for example)
https://www.amazon.com/dp/B08V8KH...C2520
I believe my old school rotel amp is rated somewhere around 100 WPC RMS at 4 ohms, I suspect the ratings for this are dynamic?
AIYIMA A07 Pro TPA3255 Stereo Amplifier Bluetooth 5.2 300Wx2 HiFi Class D Amp 2.0/2.1 Channel Audio Power Amp for Speaker with Bass Treble Control& Line Output + Power Adapter (A07 PRO) https://a.co/d/2IKvajB
They have the 3E on closeout right now for $99
https://www.schiit.com/b-stocks
If you want a cheaper DAC I've used this Prozor one on a gaming setup and its nice, but not as good as the Modi. Its $14.
https://www.amazon.com/gp/product...UTF8&
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I believe my old school rotel amp is rated somewhere around 100 WPC RMS at 4 ohms, I suspect the ratings for this are dynamic?
No they can handle them as long as they can actually supply the current needed (forget about the bogus rating on the box). There just isn't any extra headroom. You might want to look at a class D sub amp for your situation. I use one for my bass shakers.
https://a.co/d/3GVutyw
The cheap class D might not sound as good as an A/B for speakers. The new premium class D sounds very good with low distortion.
Our community has rated this post as helpful. If you agree, why not thank racker15
With the included power supply (32V 5A) this baby puts out 77 Wpc @ 4 ohm and 48 Wpc @ 8 ohm. Thats pretty good for the price and size; signal to noise is not great though.
For the low-end, at 20 Hz, max power drops to 55W @ 4 ohm.
One powers rear surrounds in a 7.3.4 system. One powers Zone 2 on my covered porch. They work great for the use case.
I use it for a jump from 9.2 to 11.2 surround channels, I thought Audyssey calibration would make my height channels even but my Fosi class D has more bass and recessed highs
Aiyima A07 Max
https://www.amazon.com/AIYIMA-Amp...B0CJ6TSSY
Fosi V3
https://www.amazon.com/AIYIMA-Amp...B0CJ6TSSY
Better, but quite a bit more $:
Fosi ZA3
https://fosiaudio.com/pages/balan...lifier-za3