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Buckeye Amps: Hypex NCx500 Official Thread

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

10 seconds. Wow. That's must be a world record low from Hypex. And their current spec is, let me guess, a single cycle of 1kHz into a 0R1 load? Harman did that in the 1980s for their high current amplifier specifications and got laughed out of the room.
 
10 seconds. Wow. That's must be a world record low from Hypex. And their current spec is, let me guess, a single cycle of 1kHz into a 0R1 load? Harman did that in the 1980s for their high current amplifier specifications and got laughed out of the room.

Test time increased to 20 seconds at 120VAC & 2040W output power with 7V drop only.

Enjoy it
 
10 seconds. Wow. That's must be a world record low from Hypex. And their current spec is, let me guess, a single cycle of 1kHz into a 0R1 load? Harman did that in the 1980s for their high current amplifier specifications and got laughed out of the room.
It seems to me that finally people are embracing P.M.P.O watts!! :cool:
 
10 seconds. Wow. That's must be a world record low from Hypex. And their current spec is, let me guess, a single cycle of 1kHz into a 0R1 load? Harman did that in the 1980s for their high current amplifier specifications and got laughed out of the room.

What is a good standard for a "high current" amplifier? I keep seeing this term thrown around and I can't seem to get a good grip on what it should mean. Secondarily, how does one know what speakers can truly benefit from this?
 
It seems to me that finally people are embracing P.M.P.O watts!! :cool:
Ummm, no, please no...

What is a good standard for a "high current" amplifier? I keep seeing this term thrown around and I can't seem to get a good grip on what it should mean.
For audio it usually means an amplifier that can "double down" in power as impedance drops. That is, an amplifier spec'd at 100 W into 8 ohms delivers 200 W at 4 ohms and 400 W at 2 ohms (amps are rarely rated to 2 ohms let alone below). That means the amplifier is not current-limited as impedance drops (to a point).

Secondarily, how does one know what speakers can truly benefit from this?
Speakers exhibiting low impedance may require higher current. A speaker rated at 4 ohms nominal needs more current than one rated at 8 ohms nominal, all else equal (e.g. same sensitivity). A speaker rated for 8 ohms nominal may benefit if it has low-impedance dips below 4 ohms (not uncommon these days). Ported speakers may have a low-impedance dip around the low-frequency port resonance, and ESLs have low impedance at high frequencies.
 
Modules are on their way via UPS. Should be able to start filling pre orders starting this weekend
Think you'll be able to get a monoblock to Amir for testing soon?
 
@

Buckeye Amps

Would it be possible to convert one of the mono amps into a subwoofer plate amp as a custom order? My old sub needs a new amp due to age and I was curious if you could build something that will output 800-1000W @ 4 ohm?

The metal frame doesn't need to be fancy at all, but it would be awesome to have a ncore or purifi plate amp. I don't really want to run the risk of failure with some of the fusion amp options.
 
@

Buckeye Amps

Would it be possible to convert one of the mono amps into a subwoofer plate amp as a custom order? My old sub needs a new amp due to age and I was curious if you could build something that will output 800-1000W @ 4 ohm?

The metal frame doesn't need to be fancy at all, but it would be awesome to have a ncore or purifi plate amp. I don't really want to run the risk of failure with some of the fusion amp options.
Unfortunately I don't have plans for this, even on a custom basis.
 
Soooo........how's those first pre-order shipments coming along? :cool:
 
First ones will be shipping out Friday. Hope to have all preorders filled and shipped within 14 days
Rock on! Thanks for the quick follow-up as usual. I'll attempt to contain my excitement for another couple of weeks.
 
I have to admit I’m pretty excited to receive this amp I hope it lives up to all the hype. I went from running A/V receivers for 20+ years to having a hard time spending on a pair of used Parasound HCA 1000's to owning 4 different McIntosh amps and a McIntosh pre amp to getting rid of the Mac pre amp to use the MiniDSP SHD because it was cleaner and clearer the the Mac pre. Now the test is going to be the the Mac 452 against the NCx500. I do love the Mac 452 It's big and beautiful and I've owned it for almost five years now and I have to be honest I will have a hard time letting it go if the NCx500 Trumps the 452.
 
I have to admit I’m pretty excited to receive this amp I hope it lives up to all the hype. I went from running A/V receivers for 20+ years to having a hard time spending on a pair of used Parasound HCA 1000's to owning 4 different McIntosh amps and a McIntosh pre amp to getting rid of the Mac pre amp to use the MiniDSP SHD because it was cleaner and clearer the the Mac pre. Now the test is going to be the the Mac 452 against the NCx500. I do love the Mac 452 It's big and beautiful and I've owned it for almost five years now and I have to be honest I will have a hard time letting it go if the NCx500 Trumps the 452.
I'm wondering how long companies like Mac, D'Agostino, Boulder, and all the tube companies are going to hold on to Class A or A/B when you can generate so much clean power from such a small, affordable, and efficient design from Class D. Maybe they like to have some coloring of their sound? Perhaps, but the masses are slowly starting to wake up to audio quality and are demanding more of it and Class D at this level of power and affordability is going to be very hard to beat in the future once the masses learn about it.
 
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