Hmm, like expected? 😀
To me, it does not sound, it just amplifies. No noise, no artefacts.
So, to answer your question, i'd say it does a "clean sound". It might "sound" a bit different, when using a reconstruction filter at the output, but this amp runs in a filterless configuration with variable frequency.
(No "voodoo" input coupling caps or other overpriced audiophile parts - just high quality)
To me, it does not sound, it just amplifies. No noise, no artefacts.
So, to answer your question, i'd say it does a "clean sound". It might "sound" a bit different, when using a reconstruction filter at the output, but this amp runs in a filterless configuration with variable frequency.
(No "voodoo" input coupling caps or other overpriced audiophile parts - just high quality)
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To me, it does not sound, it just amplifies. No noise, no artefacts.
So, to answer your question, i'd say it does a "clean sound". It might "sound" a bit different, when using a reconstruction filter at the output, but this amp runs in a filterless configuration with variable frequency.
(No "voodoo" input coupling caps or other overpriced audiophile parts - just high quality)
well that "sounds" good!
So, to answer your question, i'd say it does a "clean sound". It might "sound" a bit different, when using a reconstruction filter at the output, but this amp runs in a filterless configuration with variable frequency.
(No "voodoo" input coupling caps or other overpriced audiophile parts - just high quality)
well that "sounds" good!
doctormord==
Do you have any distortion figures, gain, watts, power supply info or charts?
Do you plan to sell these amps? How much?
It looks good!
Do you have any distortion figures, gain, watts, power supply info or charts?
Do you plan to sell these amps? How much?
It looks good!
Hi makemoney,
just have a look at the datasheet supplied by maxim:
MAX9709 25W/50W, Filterless, Spread-Spectrum, Stereo/Mono, Class D Amplifier - Overview
There are all needed infos and charts included.
I'll do some calculation on the parts for a price.
just have a look at the datasheet supplied by maxim:
MAX9709 25W/50W, Filterless, Spread-Spectrum, Stereo/Mono, Class D Amplifier - Overview
There are all needed infos and charts included.
I'll do some calculation on the parts for a price.
This is a bi-amplification system of LCR speakers based in 3x400W hypex for low frecuencies and 3x180W hypex for mid/high frecuencies, controlled by a minidsp 8x8 (crossover and parametric equalization for all channels)
Upper section of diagram.
The unit.
Upper section of diagram.
The unit.
CDA-254L
It looks ugly but sounds great! I'll eventually put this in a proper case, but I wanted to hear how it sounds. Other amps I have are a B&O 50ASX2 module, and a Lepai 2020A+ in addition to the Yamaha and Onkyo receivers I've owned.
When I first played with the 50ASX2 module the other day I was blown away by how good it sounded. Just super tight reproduction. This sounds every bit as good, but with a warmer middle and much more power before it distorts.
It looks ugly but sounds great! I'll eventually put this in a proper case, but I wanted to hear how it sounds. Other amps I have are a B&O 50ASX2 module, and a Lepai 2020A+ in addition to the Yamaha and Onkyo receivers I've owned.
When I first played with the 50ASX2 module the other day I was blown away by how good it sounded. Just super tight reproduction. This sounds every bit as good, but with a warmer middle and much more power before it distorts.
An externally hosted image should be here but it was not working when we last tested it.
Member
Joined 2004
Hi ALL:
I built these two units over the summer/fall..The Pre-amp is a PGA2320 with a nice touch screen LCD from 4D systems.I also added Capacitive touch capability on the front panel,The brass rods connect to a sparkfun capacitive touch breakout board.
The Power Amp is a Sure 250 W Class D, Unit has a larger 4.3 Display (4D systems)
Both units are being used as development system for future projects.An arduino UNO is in each chassis to handle the system operations.
Regards
Bob C.
I built these two units over the summer/fall..The Pre-amp is a PGA2320 with a nice touch screen LCD from 4D systems.I also added Capacitive touch capability on the front panel,The brass rods connect to a sparkfun capacitive touch breakout board.
The Power Amp is a Sure 250 W Class D, Unit has a larger 4.3 Display (4D systems)
Both units are being used as development system for future projects.An arduino UNO is in each chassis to handle the system operations.
Regards
Bob C.
Attachments
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Member
Joined 2004
Doctormord:
That board is very well done...Your board layout is exemplary. 😉
Regards
Bob C.
That board is very well done...Your board layout is exemplary. 😉
Regards
Bob C.
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Member
Joined 2004