The present chassis does not seem to be suitable in design for that.Anyone know if this amp is rack mountable. Seems it should be but there is no mention of it on NADs site that I can find.
The present chassis does not seem to be suitable in design for that.Anyone know if this amp is rack mountable. Seems it should be but there is no mention of it on NADs site that I can find.
I would say no. NAD is consumer, not pro oriented and I see only a single product across their entire range that has a rackmount option (a modular amp for custom home installations).Anyone know if this amp is rack mountable. Seems it should be but there is no mention of it on NADs site that I can find.
I have asked my dealer, but I am sure you are correct.I would say no. NAD is consumer, not pro oriented and I see only a single product across their entire range that has a rackmount option (a modular amp for custom home installations).
I just saw the photos of the internal chassis. You are absolutely correct.The present chassis does not seem to be suitable in design for that.
Typo?What does the 80 W mean in this context from the spec sheet?
Rated output power into 8 Ohms and
4 ohms(Stereo mode) 80 W (ref. 20 Hz-20 kHz
at rated THD, both channels driven)
Look at the NAD C 268 datasheet. The exact same verbage is there but formatted such that "80 W" is the specification instead of a qualifier for the actual value. It's a copy-paste error from that datasheet and is nonsensical in the context of the C 298 datasheet.What does the 80 W mean in this context from the spec sheet
Rated output power into 8 Ohms and
4 ohms(Stereo mode) 80 W (ref. 20 Hz-20 kHz
at rated THD, both channels driven)
If your preamp can put out 5.3V RMS and you want to be able to drive the full 185W into 8Ohms then the power amp needs 20 * log10(sqrt(185W * 8Ohms) / 5.3V) = 17.2dB gain.I’m very confused on this and hope you can straighten things out for me.
That insertion "80 W" does not appear on the specs in the Owner's Manual.Look at the NAD C 268 datasheet. The exact same verbage is there but formatted such that "80 W" is the specification instead of a qualifier for the actual value. It's a copy-paste error from that datasheet and is nonsensical in the context of the C 298 datasheet.
Thanks, added to the listing. That is THD+N at 0.009% SINAD 81 at 5W 4 ohms.So finally we have a good set of measurements
https://www.soundstagenetwork.com/i...ts&catid=97:amplifier-measurements&Itemid=154
SINAD 81 at 5W 4ohms is state of the art amplification? Am I misinterpreting something?Thanks, added to the listing. That is THD+N at 0.009% SINAD 81 at 5W 4 ohms.
The ranking that Amir compiles used SINAD of 1 kHz at 5W into 4 ohms. I read these values (THD+N at 0.009% SINAD 81) in SoundStage! measurements.SINAD 81 at 5W 4ohms is state of the art amplification? Am I misinterpreting something?
What´s the difference between this SINAD measurement and the ones from Amir? May be Amir´s is measured with a 1 Khz input and this one is at the amps most distorted frequency (15+ khz?)? Shouldnt the "Amplifier SINAD listing" use a comparable measurement?
This doesn't add up. I read the graph the same as you, but where does it come from? Both the distortion and noise are much lower, so how is noise + distortion this high. The FFT just below the THD+N graph gives a clue; it goes to 100kHz with noise rising sharply above 20kHz. I think the high THD+N is due to out-of-band noise above 20kHz, and they didn't limit the bandwidth for that graph. Looks to me like a Class-D amp's noise shaper doing it's job.Thanks, added to the listing. That is THD+N at 0.009% SINAD 81 at 5W 4 ohms.
Awesome, bang on the specification. I won't make comparisons with the Purifi reference design, but highly spec'd kit meeting it's spec this dead on makes me very happy.So finally we have a good set of measurements
https://www.soundstagenetwork.com/i...ts&catid=97:amplifier-measurements&Itemid=154
You are right: SoundStage! uses 90 kHz bandwidth, while ASR uses 22 kHz.This doesn't add up. I read the graph the same as you, but where does it come from? Both the distortion and noise are much lower, so how is noise + distortion this high. The FFT just below the THD+N graph gives a clue; it goes to 100kHz with noise rising sharply above 20kHz. I think the high THD+N is due to out-of-band noise above 20kHz, and they didn't limit the bandwidth for that graph. Looks to me like a Class-D amp's noise shaper doing it's job.