Class T pros is tube like sound, it uses PDM instead PWM compared to class D counterparts, same character as normal runs, but tube behavior rising as 2nd harmonic & soft clipping occurs when pushes hard, meanwhile any other solid state sound would be clipping hard at those level...
I bought myself a Sure T amplifier with the 2024 chip to see what the fuss is all about. I have sensitive boutique speakers with single full-range drivers.
@@Ceko I embarked on an amplifier journey after this T amp. It turns out that my speakers aren't the most sensitive at 91db. The T amp felt underpowered. The volume knob was always really high. The highs were hot. There was a barely noticeable noise floor when the music was silent standing 30cm from the driver. The bass was light. Then I thifted a Continental Edison PA9109 40W AB amplifier and it was an improvement. However, I still felt like the highs could be smoother, and there was a similar noise floor. The Continental Edison was run-of-the-mill, even for its time. Lately, I purchased a Creek 4240 amp (40W AB amp) and it's another step up in quality. The sound smoothed out and the noise floor diminished even further. Conclusion: buy vintage! I see a lot of quality Aura/Creek/Rega/Cyrus amps on the used market sell for low prices. But you have to factor in servicing (~150€). Both the Continental Edison and Creek broke down after several months.
Hello. I have some of these boards but they are funny. One of the output audio (the middle terminals actually) have inverted voltage. Can you confirm? If so, we are wrongly wiring one of the speakers?
From memory, the potentiometer was an dual-gang A50K type. i.e. dual gang = two potentiometers mounted on the same shaft (for stereo). A = Analog or logarithmic taper = the potentiometer will better track our perception of loudness than a linear taper potentiometer. 50K = 50 kilo-ohms. Really any pot in the range of 10K ohm to 50K ohm should do the trick. It is wired as a voltage divider along the lines of this image from Sparkfun: cdn.sparkfun.com/assets/6/3/e/5/e/511ac8f5ce395f5846000000.png. Referring to the image, Vin would be the audio input coming from the source, and Vout would be connected to the input of the amplifier module. Pin 3 in the image is connected to ground which is common to both the input source and the amplifier. (The image only shows a single potentiometer, i.e. enough for a single channel. To work with stereo, you wire up the same arrangement once for the left channel and once for the right channel). I hope this clarifies things. If not, I can draw up a more detailed diagram.
A great question! The current rating of the 12V power supply will limit the output power you can expect from the amplifier. A 12V 1A power adapter with give you P = IV = 1 x 12 = 12W. The amplifier is about 80% efficient. So the most you could expect out of the amplifer is 80% x 12W = 9.6W. That's for both channels combined. With 12V 2A power adapter you could expect double the maximum output power.
It's amazing what you get for the price these days.
Class T pros is tube like sound, it uses PDM instead PWM compared to class D counterparts, same character as normal runs, but tube behavior rising as 2nd harmonic & soft clipping occurs when pushes hard, meanwhile any other solid state sound would be clipping hard at those level...
Thanks for the helpful overview!
I bought myself a Sure T amplifier with the 2024 chip to see what the fuss is all about. I have sensitive boutique speakers with single full-range drivers.
And how do you like it so far?
@@Ceko I embarked on an amplifier journey after this T amp. It turns out that my speakers aren't the most sensitive at 91db. The T amp felt underpowered. The volume knob was always really high. The highs were hot. There was a barely noticeable noise floor when the music was silent standing 30cm from the driver. The bass was light. Then I thifted a Continental Edison PA9109 40W AB amplifier and it was an improvement. However, I still felt like the highs could be smoother, and there was a similar noise floor. The Continental Edison was run-of-the-mill, even for its time. Lately, I purchased a Creek 4240 amp (40W AB amp) and it's another step up in quality. The sound smoothed out and the noise floor diminished even further. Conclusion: buy vintage! I see a lot of quality Aura/Creek/Rega/Cyrus amps on the used market sell for low prices. But you have to factor in servicing (~150€). Both the Continental Edison and Creek broke down after several months.
Thx for the overview friend (y)
What was the name of the 3 pin connector plug please - I couldn't pick up what you said it was. Thanks
Hello. I have some of these boards but they are funny. One of the output audio (the middle terminals actually) have inverted voltage. Can you confirm? If so, we are wrongly wiring one of the speakers?
hi. great video. which potentiometer did you use? Also how did you wire it? Considering to order one of these instead of Dayton DTA2. same chip. tanks
From memory, the potentiometer was an dual-gang A50K type. i.e. dual gang = two potentiometers mounted on the same shaft (for stereo). A = Analog or logarithmic taper = the potentiometer will better track our perception of loudness than a linear taper potentiometer. 50K = 50 kilo-ohms. Really any pot in the range of 10K ohm to 50K ohm should do the trick. It is wired as a voltage divider along the lines of this image from Sparkfun: cdn.sparkfun.com/assets/6/3/e/5/e/511ac8f5ce395f5846000000.png. Referring to the image, Vin would be the audio input coming from the source, and Vout would be connected to the input of the amplifier module. Pin 3 in the image is connected to ground which is common to both the input source and the amplifier. (The image only shows a single potentiometer, i.e. enough for a single channel. To work with stereo, you wire up the same arrangement once for the left channel and once for the right channel). I hope this clarifies things. If not, I can draw up a more detailed diagram.
thanks a lot Luc. waiting for my amp to arrive
hi
very clear explanation!thanks a lot for your help.
just one question power adaptor 12v how about the current range?
please.
A great question! The current rating of the 12V power supply will limit the output power you can expect from the amplifier. A 12V 1A power adapter with give you P = IV = 1 x 12 = 12W. The amplifier is about 80% efficient. So the most you could expect out of the amplifer is 80% x 12W = 9.6W. That's for both channels combined. With 12V 2A power adapter you could expect double the maximum output power.
just connect it to your macbook to know the quality for real