I'm looking for a nice simple little build to power my Cornwalls for nearfield listening. My source is a macbook pro using JRiver out through a DAC and terminating in RCA.
It looks like the this TA2024 + power supply kit would work just fine for my intimate listening power needs: amp + power @ ebay
and that this volume module would sit just fine between my dac and the amp board: volume knob
it seems stupid simple and I'm just wondering if I'm missing something. I think I'd like to get a fancy piece of wood from Rockler and just mount these components out in the open on that vs. in an enclosure.
It looks like the this TA2024 + power supply kit would work just fine for my intimate listening power needs: amp + power @ ebay
and that this volume module would sit just fine between my dac and the amp board: volume knob
it seems stupid simple and I'm just wondering if I'm missing something. I think I'd like to get a fancy piece of wood from Rockler and just mount these components out in the open on that vs. in an enclosure.
I have one (got mine off Parts Express, Amazon has them too!)
I have been listening to for a couple of days. Can't beat the price, doesn't generate any heat, runs off a simple power supply. I have ran mine off a 15volt 6 amp supply like the picture and I ordered a 19 volt 4 amp computer supply. I can't really hear the difference between the 2 supplies. The computer supply was only 9 dollars.
I also have the volume knob, it also works as an on/off switch. You will have to solder in the 2 sockets the switch plugs into, through hole simple solder job.
It is stupid simple and stupid cheap, makes me wonder why I am building LM1875 amps when I can buy one of these for less then the transformer needed for the LM1875.
There is a thread on here about 5 years ago that explains if you change the ceramic capacitors on the output the amp will sound better and looking at the graphs there is a really nasty peak of distortion at 1khz.
When I first fired the amp up I thought I was occasionally hearing something nasty but the longer it runs the less I notice that noise and I don't think I heard it friday night in 4 hours of listening.
I plan on buying a few more. At these prices I may even attempt the mod.
I have been listening to for a couple of days. Can't beat the price, doesn't generate any heat, runs off a simple power supply. I have ran mine off a 15volt 6 amp supply like the picture and I ordered a 19 volt 4 amp computer supply. I can't really hear the difference between the 2 supplies. The computer supply was only 9 dollars.
I also have the volume knob, it also works as an on/off switch. You will have to solder in the 2 sockets the switch plugs into, through hole simple solder job.
It is stupid simple and stupid cheap, makes me wonder why I am building LM1875 amps when I can buy one of these for less then the transformer needed for the LM1875.
There is a thread on here about 5 years ago that explains if you change the ceramic capacitors on the output the amp will sound better and looking at the graphs there is a really nasty peak of distortion at 1khz.
When I first fired the amp up I thought I was occasionally hearing something nasty but the longer it runs the less I notice that noise and I don't think I heard it friday night in 4 hours of listening.
I plan on buying a few more. At these prices I may even attempt the mod.
Amazon.com: Rotary Encoder + Volume Control Board for Select Amplifier Boards: Electronics volume knob
http://www.diyaudio.com/forums/clas...tput-filter-designs-sure-tda7498-example.html Post about this amp in 2012
2x25W @ 4 Ohm TDA7492 Class-D Audio Amplifier Board Only | 320-332 what I bought back in stock
http://www.diyaudio.com/forums/clas...tput-filter-designs-sure-tda7498-example.html Post about this amp in 2012
2x25W @ 4 Ohm TDA7492 Class-D Audio Amplifier Board Only | 320-332 what I bought back in stock
ordered! I think I'm going to buy a schiit modi for my dac (great reviews, runs off USB power) and de-case it, then mount all of this stuff open air à la plywood plinth style.
plywood plynth
plywood plynth
I plan on ordering a couple more after Christmas and will attempt the output capacitor mod.
For my PC I plan on mounting one is a working cassette deck, that way I'll have some VU meters for grins.
For my PC I plan on mounting one is a working cassette deck, that way I'll have some VU meters for grins.
Thad, do yourself a favor and mount the boards in a case, it really isn't that difficult. There are many reasons to do so and it might save your project.
In fact, I'm working on some aluminum cases at the moment and I might be able to offer you something that will work. I build custom audio amp, preamp, and other enclosures. If you can do some of the work, I will have some pieces that may work for a simple project like this. Alternatively, there are many case offerings such as Hammond brand that would meet your needs.
I am working on a bike-mounted boom box using the Sure TK-2024 chip. I'll be starting a thread about it when I get further along. I have some questions about connectivity for Bluetooth and a few other questions but they are probably better addressed in my own thread. It's good to hear that others are having good results with the Sure-Electronics products. I've built and used T-amps, previously, with the original TK2020 boards (not Sure) and found them to play well but were anything but durable. Hopefully, the new TK 2024 from Sure is more reliable.
In fact, I'm working on some aluminum cases at the moment and I might be able to offer you something that will work. I build custom audio amp, preamp, and other enclosures. If you can do some of the work, I will have some pieces that may work for a simple project like this. Alternatively, there are many case offerings such as Hammond brand that would meet your needs.
I am working on a bike-mounted boom box using the Sure TK-2024 chip. I'll be starting a thread about it when I get further along. I have some questions about connectivity for Bluetooth and a few other questions but they are probably better addressed in my own thread. It's good to hear that others are having good results with the Sure-Electronics products. I've built and used T-amps, previously, with the original TK2020 boards (not Sure) and found them to play well but were anything but durable. Hopefully, the new TK 2024 from Sure is more reliable.
The volume knob while having a push button on/off only does volume on my board 🙁
Personally I think it sucks as a volume knob, lots of turning.
Personally I think it sucks as a volume knob, lots of turning.
you might check your wiring or maybe contact Sure. the on/off feature is for basically muting the inputs only, not for enabling or disabling the power supply. as to the knob turning, that's exactly what you want so that you don't go from zilch to blasting loud with the slightest touch.
I will do that the next time I experiment with this amp.
Spent the evening soldering up my pre amp 3 selector switch.
Amazes me how something so simple can be such a pain in the **** 🙂
I ended up pulling to volume module out of the signal path. Couldn't seem to get the volume levels right with my source and the knob. and it seems to sound better with it out of the way.
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