Buckeye Amps: Hypex NCx500 Official Thread

[goryu]

It will be more than capable to handle the NCx500 into 2ohms...the whole premise of having this custom made by Micro Audio was to handle the NCx500 down into 2ohm for up to 3ch configs (and also 2ch Purifi 7040SA builds eventually)

It would be nice to have the specs to confirm exactly what it's performance envelope actually is...The test on the NCx500 done on this site was a monobloc powered by a single Hypex 1200W smps and that was able to get 700 watts out of the NCx500 at 2 ohms. This smps is 2000W for three modules which leads me to ask for some performance particulars of this smps.

 

[Buckeye Amps]

It would be nice to have the specs to confirm exactly what it's performance envelope actually is...The test on the NCx500 done on this site was a monobloc powered by a single Hypex 1200W smps and that was able to get 700 watts out of the NCx500 at 2 ohms. This smps is 2000W for three modules which leads me to ask for some performance particulars of this smps.

Understood. All official specs/measurements will come in due time once the production prototypes are in hand.

But just as MA's 1.2kW has shown its ability to power the 7040SA to full specs, this 2kW will do the same for the NCx (as that is the sole goal/reason for asking for this model from MA...Sami does not live to disappoint).

 

[goryu]

Understood. All official specs/measurements will come in due time once the production prototypes are in hand.

But just as MA's 1.2kW has shown its ability to power the 7040SA to full specs, this 2kW will do the same for the NCx (as that is the sole goal/reason for asking for this model from MA...Sami does not live to disappoint).

Will that be in time to take advantage of the current pricing or will we lose out on the sale price to wait to find out?

 

[Buckeye Amps]

Will that be in time to take advantage of the current pricing or will we lose out on the sale price to wait to find out?

At this moment the sale pricing has ended on all NCx models

 

[Doodski]

Can I trust the availability and price structure is good for a prospective purchaser of Buckeye Amps product? I refer people from time to time and they want to know that I recommend the best solutions for their needs. When will the price list simplify and not include the legacy models?

 

[Buckeye Amps]

Can I trust the availability and price structure is good for a prospective purchaser of Buckeye Amps product? I refer people from time to time and they want to know that I recommend the best solutions for their needs. When will the price list simplify and not include the legacy models?

Which models do you mean by legacy?

All models currently listed on our site are being carried for the foreseeable future.

 

[goryu]

At this moment the sale pricing has ended on all NCx models

What is the policy on the deposits- are they refundable?

 

[Buckeye Amps]

Comparing these two PS units with the NCx500 is more a math equation than a quality of audio indicator.

Plus some "upgrades" the MA units bring with them (like PFC)

 

[goryu]

The difference between 350W and 700W is 3db. And if you ever did use even 300W over any extended period it would likely start the road to tinnitus and much less enjoyment of your audio system. I seriously doubt anyone can tell a difference in a blind test between a NCx500 with a Hypex SMPS1200A700 or the Micro Audio 2kW SMPS. Comparing these two PS units with the NCx500 is more a math equation than a quality of audio indicator.

I can tell you don't have 2ohm speakers.

 

[Buckeye Amps]

What is the policy on the deposits- are they refundable?

Absolutely, unless there is a custom finish involved, then that cost (of the powder coat or anodizing) is non-refundable if the case is in manufacturing.

 

[goryu]

Absolutely, unless there is a custom finish involved, then that cost (of the powder coat or anodizing) is non-refundable if the case has is in manufacturing.

Fair enough, thanks.

 

[Doodski]

Which models do you mean by legacy?

I mean stuff that has connectors and power transfer characteristics/requirements that are current but in new and old legacy devices/models. Older models being termed legacy devices because they are carried forward to the next generation via connection standards etc.

 

[Buckeye Amps]

I mean stuff that has connectors and power transfer characteristics/requirements that are current but in new and old legacy devices/models. Older models being termed legacy devices because they are carried forward to the next generation via connection standards etc.

Besides the possibility of offering optional upgrades for some models/configurations as time goes on, the core builds of all models listed on the site will be the same.

 

[MicroAudio]

It would be nice to have the specs to confirm exactly what it's performance envelope actually is...The test on the NCx500 done on this site was a monobloc powered by a single Hypex 1200W smps and that was able to get 700 watts out of the NCx500 at 2 ohms. This smps is 2000W for three modules which leads me to ask for some performance particulars of this smps.

The 2KW SMPS will deliver the output current needed.

NCx500 is operated at +-87VDC, we are talking about 14A ~ 16A output from the SMPS.

A quick test was done on some new SMPS models and the result was +-64VDC @ 13.5A.

Thanks

 

[goryu]

The 2KW SMPS will deliver the output current needed.

NCx500 is operated at +-87VDC, we are talking about 14A ~ 16A output from the SMPS.

A quick test was done on some new SMPS models and the result was +-64VDC @ 13.5A.

Thanks

I am not following...at 87Vdc, 700 watt output from the modules is 8A, so for three modules, you would need 24A.

 

[MicroAudio]

I am not following...at 87Vdc, 700 watt output from the modules is 8A, so for three modules, you would need 24A.

That's correct because in that case, the amplifier output is 87V not 160V

Or, +87 @ 12A & -87 @ 12A

 

[goryu]

That's correct because in that case, the amplifier output is 87V not 160V

Or, +87 @ 12A & -87 @ 12A

If you have a SMPS that supplies +/- 87Vdc, how do you supply three modules? With 2, clearly one on the + side and one on the - side. With three, how is the 3rd module wired without creating an imbalance? If it is fed from either the + or - side, I would think you would 16A capacity per side, not 12A...Please explain. Thanks.

 

[DonH56]

If you have a SMPS that supplies +/- 87Vdc, how do you supply three modules? With 2, clearly one on the + side and one on the - side. With three, how is the 3rd module wired without creating an imbalance? If it is fed from either the + or - side, I would think you would 16A capacity per side, not 12A...Please explain. Thanks.

Each amp module uses both +87 V and -87 V. https://www.hypex.nl/media/74/2a/5b/1678365773/NCx500 - Datasheet R0.pdf For three modules you wire the + and - supply connections in parallel to the power supply connections, or use three supplies, or whatever.

 

[3ll3d00d]

Sustained power is 1.8kW @ 120VAC / 2kW @ 240VAC

What's the definition of sustained here? Assume it's some reasonable time period that isn't super short but just wanted to be sure

 

[Buckeye Amps]

What's the definition of sustained here? Assume it's some reasonable time period that isn't super short but just wanted to be sure

For 120VAC it is the same time criteria Hypex uses of 10s.
For 240VAC it is 30s.