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Hypex NCx1000 OEM
- Thread starter boXem
- Start date
Was the original 1000 the module that initially Hypex kept solely for their Mola ‘Kaluga’ amps?
Keith
Keith
A bridged NCx500 with 1400W into 4 ohms at 7 uV output noise, wow. This thing is a competidor to the announced Purifi 1ET9040BA it seems.
It has less output noise than Purifi 1ET400A (~11.5 uV) for reference. And since the typical SINAD at 5W is mainly defined by noise (distortion comes only with higher power), the NCx1000 should have a very high SINAD. Smarter folks than me can do the math and already predict.
Edit: the 1ET9040BA has 8 uV and SINAD 117 so the NCx1000 with 7 uV should be around there too.
It has less output noise than Purifi 1ET400A (~11.5 uV) for reference. And since the typical SINAD at 5W is mainly defined by noise (distortion comes only with higher power), the NCx1000 should have a very high SINAD. Smarter folks than me can do the math and already predict.
Edit: the 1ET9040BA has 8 uV and SINAD 117 so the NCx1000 with 7 uV should be around there too.
Last edited:
Yes of course the 1200 if I recollect initially they would only sell them to manufacturers whose finished amp product had a retail price over a certain amount .
I remember the Kalugas used them and perhaps a Jeff Roland design?
Keith
You need a new amp you need a new amp…
Keith
Keith
If it helps this huge power makes more sense to huge speakers playing loud levels. More of a niche. The regular NCx500 with "only" 700W into 4 ohms is already plenty.
no it was a joke. McIntosh has 1.2kW monoblocks so people will find uses for this. or so they think.
OP
- Thread Starter
- #11
Yes and no. The 1ET90BA will cope better with low impedance speakers, the NCx1000 with high impedance ones. TBH, I am a bit disappointed to see that 4R power is higher than 2R power.
People will just need to understand that the amplifier input stage now makes a significant difference on measurements with such high performance modules.It has less output noise than Purifi 1ET400A (~11.5 uV) for reference. And since the typical SINAD at 5W is mainly defined by noise (distortion comes only with higher power), the NCx1000 should have a very high SINAD. Smarter folks than me can do the math and already predict.
Edit: the 1ET9040BA has 8 uV and SINAD 117 so the NCx1000 with 7 uV should be around there too.
Sokel
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Why is that?
If we take mid-size actives as a reference 1kW for lows only is usually the norm.
Mains monitors much-much higher than that.
Let's wait for the datasheet,I'm curious about the recommended heatshinks,power dissipation charts,etc.
Which ones? AFAIK it does not even come close to that.
Examples:
Genelec 8361 - 700+150+150=1kW total
Neumann KH 420 - 295+130W=425W total
Focal Trio11 Be - 300+150+100W=550W total.
Sokel
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Not so far if we take into account the losses of the passive x-over,needed EQ,etc.
Studios are about 50-70m² and their main monitors range from 3 to 6KW each for "lifelike" reproduction as Genelec says.
And the combined power of an active is not comparable with a passive driven by the same power,which is one of the main qualities of an active.
Don't think 1kW is much for a medium size full range passive combining music with high dynamic range,EQ and a medium size room.
I noticed the description below on the brochure:
"SMPS dependent High-current/High-Voltage mode"
And
"COMPATIBLE SMPS
SMPS1200A400 / SMPS1200A700 /
SMPS3kA400 / SMPS3kA700"
Maybe using a lower voltage SMPS like 1200A400 the amp becomes voltage limited and thus "high-current", doubling down power from 8 to 4 to 2 ohms like traditional audiophile marketing loves to brag?
OP
- Thread Starter
- #17
I do not think it goes above 1000 W in 2 Ohm because it will be anyhow current limited.
My view on the current limit is more technical: to simplify, for a given supply voltage there is a load below which the power is limited by the current instead of the voltage. Let's call it "threshold impedance".
At the frequencies where the speaker impedance is below this threshold, the amplifier will not be able to output the same voltage as when the impedance is above the threshold. This means that when a speaker has impedance dips below the threshold, the power versus frequency curve of the amplifier also has dips at the same frequencies. I personally like seeing my amplifiers to have a flat max power vs frequency for speakers having a minimum impedance of 3.3 Ohm. Which is I believe the minimum impedance required by DTS.
My view on the current limit is more technical: to simplify, for a given supply voltage there is a load below which the power is limited by the current instead of the voltage. Let's call it "threshold impedance".
At the frequencies where the speaker impedance is below this threshold, the amplifier will not be able to output the same voltage as when the impedance is above the threshold. This means that when a speaker has impedance dips below the threshold, the power versus frequency curve of the amplifier also has dips at the same frequencies. I personally like seeing my amplifiers to have a flat max power vs frequency for speakers having a minimum impedance of 3.3 Ohm. Which is I believe the minimum impedance required by DTS.
A bridged NCx500 with 1400W into 4 ohms at 7 uV output noise, wow. This thing is a competidor to the announced Purifi 1ET9040BA it seems.
It has less output noise than Purifi 1ET400A (~11.5 uV) for reference. And since the typical SINAD at 5W is mainly defined by noise (distortion comes only with higher power), the NCx1000 should have a very high SINAD. Smarter folks than me can do the math and already predict.
Edit: the 1ET9040BA has 8 uV and SINAD 117 so the NCx1000 with 7 uV should be around there too.
1ET9040BA has 4.5uV. (First time I saw the module the prototype had 8uV, but they have improved it in the meantime.)
The bridged NCx500 will probably not service 2 ohm loads- same with the Purifi or is it bridged as well?
The recommended load on the Purifi 1ET9040BA is from 2 to 16ohm nominal, and apparently it is stable also down to 1ohm.
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