Hi everyone,
First post for me here. I'm expanding my home theater and am exploring my options for the extra amps and speakers involved. I am looking at adding an additional 12 channels (thanks to Atmos/DTS:X).
One option is to diy my amps although I have not done much soldering before. I've seen the NC400 builds and could certainly do that, but those appear to cost around $800 per channel when one adds in all the costs.
Are there any Class D amp designs that run about 100-300 dollars per channel, preferably towards the lower end of that range?
My priorities would be:
1. Audio quality surpasses what I can buy commercially (e.g. Rotel RMB-1512) for an equivalent price
2. Minimum of 100 W into 8 ohm loads
3. Reliability
4. Doable for a guy like me - good at all diy and a seasoned woodworker, but never dabbled too much in electronics
I could build this as either one or two large multi-channel amps, although if I well understand acoustically I will be better off running longer ICs and shorter speaker cables. So I am expecting that I would end up positioning each amplifier close to the speakers, which will all be hidden on walls and ceiling behind acoustically transparent cloth.
Are there any amplifier designs that I should be considering? In case it makes a difference I live in Switzerland, where I can get the 12-channel Rotel (Class D) for the equivalent of $2400.
Best,
Dave M
First post for me here. I'm expanding my home theater and am exploring my options for the extra amps and speakers involved. I am looking at adding an additional 12 channels (thanks to Atmos/DTS:X).
One option is to diy my amps although I have not done much soldering before. I've seen the NC400 builds and could certainly do that, but those appear to cost around $800 per channel when one adds in all the costs.
Are there any Class D amp designs that run about 100-300 dollars per channel, preferably towards the lower end of that range?
My priorities would be:
1. Audio quality surpasses what I can buy commercially (e.g. Rotel RMB-1512) for an equivalent price
2. Minimum of 100 W into 8 ohm loads
3. Reliability
4. Doable for a guy like me - good at all diy and a seasoned woodworker, but never dabbled too much in electronics
I could build this as either one or two large multi-channel amps, although if I well understand acoustically I will be better off running longer ICs and shorter speaker cables. So I am expecting that I would end up positioning each amplifier close to the speakers, which will all be hidden on walls and ceiling behind acoustically transparent cloth.
Are there any amplifier designs that I should be considering? In case it makes a difference I live in Switzerland, where I can get the 12-channel Rotel (Class D) for the equivalent of $2400.
Best,
Dave M
Thanks both, I've taken a look at threads now on both these designs.
The MDA-400 looks particularly interesting. What a shame the designer was banned. There also seems to be a dearth of listening tests done, at least on this forum. I have wound through the 64(!) page thread on his designs and am quite intrigued. More to learn but many thanks for these steers.
Best wishes,
Dave M
The MDA-400 looks particularly interesting. What a shame the designer was banned. There also seems to be a dearth of listening tests done, at least on this forum. I have wound through the 64(!) page thread on his designs and am quite intrigued. More to learn but many thanks for these steers.
Best wishes,
Dave M
Thanks! I hadn't seen that - although I have read through a bunch of other Audio Power threads on that forum.
Hi daveingva,
You ca have a look at MiniDSP plate amp produtcs, they are using IcePowerASX modules.
PWR-ICE Series
On the Bodzio software pages you can download a paper describing the construction of a 10 channel amp with this modules.
http://www.bodziosoftware.com.au/AES_EBU_Amplifier_Construction.pdf
I own a music player using a 50ASX2 module and I find it sound VERY good !
You ca have a look at MiniDSP plate amp produtcs, they are using IcePowerASX modules.
PWR-ICE Series
On the Bodzio software pages you can download a paper describing the construction of a 10 channel amp with this modules.
http://www.bodziosoftware.com.au/AES_EBU_Amplifier_Construction.pdf
I own a music player using a 50ASX2 module and I find it sound VERY good !
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