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Other Stuff => Archived Manufacturer Circles => AudioKinesis Loudspeakers => Topic started by: James Romeyn on 13 Jun 2017, 08:36 pm

Title: FS: Hypex NCore NC400BTL $2389/pr, 1200W @ 2 Ohm, 1 Ohm minimum
Post by: James Romeyn on 13 Jun 2017, 08:36 pm
Posted here with Duke's permission.  I appreciate readers reposting this in their favorite interweb haunts.  If this post causes you to bid, please mention Duke and/or AudioKinesis.

For sale:
One pair of amps I built, Hypex NCore NC400BTL/bridged tied load, 400/800/1200W @ 8/4/2 Ohm, 1 Ohm minimum.  Upon request I shall convert the amps to regular Stereo, 200/400/600W @ 8/4/2 Ohm, 1 Ohm minimum.  These two BTL amps converted to Stereo are exact performance equal of four NC400 mono bloc w/600W PS each. BTL mode outperforms non-BTL NC400 at all power ranges, even small fraction of a watt.     

Listed now at Audiogon for $2389/pr: https://www.audiogon.com/listings/solid-state-hypex-nc400btl-bridged-mono-blocks-2017-06-07-amplifiers-84332-providence-ut--2

Plenty of images in the ad, with lots of product notes.  I thought it prudent to save data space here, rather than repost images.  Upon request I'll repost images here.   
 
Thanks!
James

 
Title: Re: FS: Hypex NCore NC400BTL $2389/pr, 1200W @ 2 Ohm, 1 Ohm minimum
Post by: strateahed on 13 Jun 2017, 09:09 pm
Hello James, aren't those cases the "original" Siliconray enclosures ... before they started making the James Romeyn custom NC400 boxes? If so, I'm a little surprised at how much is fit in there. Excellent work btw!
Title: Re: FS: Hypex NCore NC400BTL $2389/pr, 1200W @ 2 Ohm, 1 Ohm minimum
Post by: James Romeyn on 13 Jun 2017, 09:41 pm
Howdy,
Actually, I designed the original mono Siliconray chassis first, then this stereo chassis.  Since the stereo chassis arrived, IIRC I never sold another regular mono amp again, except these BTL mono in the stereo chassis. 

Thanks for the note.  I built dozens of NC400, constantly modifying my record of the length of each wire up/down in 5mm steps, for just enough slack but no more than necessary.  The main wire harness takes longer to make than any other single task.

If anyone employs NC400 w/system having 13.4 dB or more spare gain, remove R141 on NC400 for even lower noise floor.  (Stock gain is 25.5 dB w/R141 installed, 12.1 dB w/R141 removed.)