Hypex NCx500 Class D Amplifier Review

[AdamG]

A dozen or so off topic posts relocated to the Master Thread. Let’s try to stay on topic shall we.

Thank you for your cooperation and understanding.

 

[TimF]

I don't think it is arguing for the sake of arguing. It reaffirms the 'thing' under consideration which is quite distinct from music and sound although we often confuse signal with music and sound. It reaffirms that we are working with a developed technology that is these days well beyond simple and intuitive. It reaffirms that it is all too easy to get off track in both discussions and technological applications into spectacle and the 'flavored.' The signal is not beauty. And the source surely is not beauty but practical and real. As I've said before, science is not natural to us and takes a continuing attention to pull off. On this website I often find posts that are impressively well stated.

 

[bikenutty]

Just received my Buckeye 3 channel NCx500, blasting music and enjoying the mild increase in power over the Nilai it replaced (2 channel).

 

[Doodski]

Just received my Buckeye 3 channel NCx500, blasting music and enjoying the mild increase in power over the Nilai it replaced (2 channel).

Sounds awesome. How is it different?

 

[bikenutty]

Sounds awesome. How is it different?

I can't say I hear any difference until it gets excessively loud, then it gets excessively louder (ok with me). Primarily done to replace the Nilai 2 channel and a mono NCx500 that feed the LCR channels. Space constraints, now only 1 amp and same levels across the front. If I had another 2 channel system, I would keep the Nilai for it. My old amps are in the for sale forum.

 

[Doodski]

I can't say I hear any difference until it gets excessively loud, then it gets excessively louder (ok with me). Primarily done to replace the Nilai 2 channel and a mono NCx500 that feed the LCR channels. Space constraints, now only 1 amp and same levels across the front. If I had another 2 channel system, I would keep the Nilai for it. My old amps are in the for sale forum.

IC... Nice upgrade. What finish?

 

[bikenutty]

IC... Nice upgrade. What finish?

I assume you mean amp color? Std black, its not an eyepiece for me (I have a Buckeye 4 channel NC502 for sides/rears and will likely do a 4 channel NC252 for heights when I finally get there).

 

[Doodski]

I assume you mean amp color? Std black, its not an eyepiece for me (I have a Buckeye 4 channel NC502 for sides/rears and will likely do a 4 channel NC252 for heights when I finally get there).

Yes, the black is silent and deadly...LoL. j/k. Some of the available finishes are pretty nice. I like anodizing. I thought there was a anodizing option there before?

Buckeye Amps

Buckeye Amps utilizes the most advanced audio amplifier technologies available. Authorized seller for Hypex and Purifi Class D amplifiers. Based in the US. Free shipping and worldwide service!

www.buckeyeamp.com

 

[bikenutty]

Yes, the black is silent and deadly...LoL. j/k. Some of the available finishes are pretty nice. I like anodizing. I thought there was a anodizing option there before?

Buckeye Amps

Buckeye Amps utilizes the most advanced audio amplifier technologies available. Authorized seller for Hypex and Purifi Class D amplifiers. Based in the US. Free shipping and worldwide service!

www.buckeyeamp.com

Hate to think I hear any difference at normal volume levels... I doubt there are any, but the upper mids and highs seem slightly more pronounced.... sounds great either way.

 

[Doodski]

Hate to think I hear any difference at normal volume levels... I doubt there are any, but the upper mids and highs seem slightly more pronounced.... sounds great either way.

I'm not sure what kind of amp/power you had before but is this amp orders better in overall power output and low Z output?

 

[bikenutty]

I'm not sure what kind of amp/power you had before but is this amp orders better in overall power output and low Z output?

As mentioned, replaced Nilia stereo DIY amp, after a few hours+ I touched the top of this amp, way hotter than the Nilai, measured at 112 degrees F. Never measured the mono NCx500 (VTV) that ran the center channel...... never measured the Nilai, it was never hot enough to concern me.

 

[Doodski]

As mentioned, replaced Nilia stereo DIY amp, after a few hours+ I touched the top of this amp, way hotter than the Nilai, measured at 112 degrees F. Never measured the mono NCx500 (VTV) that ran the center channel...... never measured the Nilai, it was never hot enough to concern me.

Is it hot when quiescent? (Sitting there doing nothing.)

 

[bikenutty]

Is it hot when quiescent? (Sitting there doing nothing.)

How would I know, been entertaining the neighbors and making my family leave the room for 4 hours LOL!

 

[Doodski]

How would I know, been entertaining the neighbors and making my family leave the room for 4 hours LOL!

Ahhh I see your logic... LoL.

 

[Julf]

A dozen or so off topic posts relocated to the Master Thread. Let’s try to stay on topic shall we.

Thank you for your cooperation and understanding.

While I totally support the relocation, and think it is appropriate, I wish there was some pointer/link to where the discussion moved to...

 

[MaxwellsEq]

While I totally support the relocation, and think it is appropriate, I wish there was some pointer/link to where the discussion moved to...

Serious Question: How can DAC's have a SOUND SIGNATURE if they measure as transparent? Are that many confused?

Thermal noise is something of a physical limit and with microphones we are getting down near that with such a weak signal. Just as a for instance a 150 ohm resistor naturally has -133 dbV coming from it. Or .22 microvolts. Hmm... so could it be that something as simple as a true RMS...

audiosciencereview.com

 

[bikenutty]

After sitting overnight in standby mode, the amp is cold to the touch (as expected)

 

[Doodski]

After sitting overnight in standby mode, the amp is cold to the touch (as expected)

That's great!. A bit of heat while operational and cool while quiescent is good.

 

[sandeep_s300]

Just received my Buckeye 3 channel NCx500, blasting music and enjoying the mild increase in power over the Nilai it replaced (2 channel).

I have ordered the same - waiting to see it in post soon. I have the two channel built by Apollon with SI 997 opamp. Will be nice to compare the two build .

 

[bikenutty]

I have ordered the same - waiting to see it in post soon. I have the two channel built by Apollon with SI 997 opamp. Will be nice to compare the two build .

interested in hearing your opinion on this amp.