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Holton Precision Audio High quality, high performance amplifier modules and accessories

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Old 10th July 2014, 11:52 PM   #1
The Saint is offline The Saint  Australia
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Default Latest nxV500 Power Amp from HPA

Here is the latest power amplifier which has just been installed into King Willy Sound Studio.
The Owner of King Willy Sound 2013 Grammy Award Winner William Bowden.
For his mastering work done on the Gotye’s Somebody That I Used To Know Single.
http://www.kingwillysound.com

This amplifier uses my PSU-Two power supply boards with a total of 64,800 Microfarad per channel.
The power supply is configured into a dual mono design with each amp channel having its own independent power supply
and secondary windings and a 800VA power transformer powering both power supply boards.
Typical power output is 300 watts RMS per channel into 8 ohms.
The amplifier modules are the latest version of the nxV500 using 8 x single die lateral MOSFETs in the output stage per channel.

Click the image to open in full size.

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Cheers

Anthony
HPA

Last edited by The Saint; 11th July 2014 at 12:10 AM.
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Old 13th July 2014, 09:01 AM   #2
dvb projekt is offline dvb projekt  Germany
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Latest nxV500 Power Amp from HPA
Hi Anthony,

great looking amp!

What are the differences between the nxV500R2 vs nxV500L besides the FETs?

Any advantages of the new one?


Bestr regards,
Oliver

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Old 13th July 2014, 09:56 AM   #3
The Saint is offline The Saint  Australia
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Hi Oliver

Thanks...

The new nxV500L modules I believe have a bit better focus in placing the instruments in space so to speak.
Other than that they are completely identical as the nxV500 R2 modules.
Other than the use of Laterals that is.
I am very pleased with their performance both objectively and subjectively.
They are a most excellent amplifier module and make the based of an awesome stereo power amplifier.
William Bowden liked them a lot, so much so he purchased the complete amplifier from me.
He had been using Hypex mono block amplifiers for a number of years, but liked in his words the expensive sound quality of the nxV500L stereo power amplifier
and the much improved imaging and detail in the sound stage and the improvement in the richness of the midrange and higher frequency range.

Cheers Anthony
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Old 21st July 2014, 12:00 PM   #4
ijscobar is offline ijscobar  Netherlands
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Quote:
Originally Posted by The Saint View Post
Hi Oliver

He had been using Hypex mono block amplifiers for a number of years, but liked in his words the expensive sound quality of the nxV500L stereo power amplifier
and the much improved imaging and detail in the sound stage and the improvement in the richness of the midrange and higher frequency range.

Cheers Anthony
I have the same experience!
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Old 27th September 2014, 10:32 PM   #5
Music Lover is offline Music Lover  Australia
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Hi Anthony,

what would the total cost in parts be and what is the cost if you built that amp?
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