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[Greg Reierson]

Jerry Tubb wrote on Sun, 06 April 2008 17:04

Anyone tried Hypex from these guys(?): http://www.diycable.com/main/default.php?cPath=140

Yes, that's the kit I built a while back. You may remember such PSW theads as http://recforums.prosoundweb.com/index.php/m/294186/6829/?sr ch=hypex#msg_294186

Highly recommended!


GR

[jdg]

im using the same kit as greg, some fulfillment and wrong part issues

[Jerry Tubb]

Greg Reierson wrote on Sun, 06 April 2008 17:51

Jerry Tubb wrote on Sun, 06 April 2008 17:04 Anyone tried Hypex from these guys(?): http://www.diycable.com/main/default.php?cPath=140 Yes, that's the kit I built a while back. You may remember such PSW theads as  http://recforums.prosoundweb.com/index.php/m/294186/6829/?sr ch=hypex#msg_294186 Highly recommended!

Yes of course, thanks Greg. I'll go back and read.

Might be interesting to build four monoblocks to biamp the Dunlavy's!

Cheers - JT

[Greg Reierson]

Jerry Tubb wrote on Sun, 06 April 2008 20:55

Might be interesting to build four monoblocks to biamp the Dunlavy's. Cheers - JT

I considered the same for my PMCs. Somewhere in that thread Bruno suggested that biamping might be redundant when using an amp with sufficiently low output impedance.

Bruno said - "speakers draw nonlinearly distorted currents. Low output impedance prevents distortion components in the current drawn by the midrange speaker from spilling over into the highs via common-impedance coupling at the amplifier terminals."

I asked: "Does the above quote have anything to say about why bi/tri amping is often preferred?"

Bruno replied: "Yes. I think it's the only explanation that would make sense."

So you may be able to get by with just two monoblocks. At least you can build two at a time.



GR

[MDM,]

+1 on the triode amp thing..

distortion aside they are more telling of what's going on musically and sound-wise..

the down-side is the limited power and the fact that they have a high output impedance compared to ss amps..

zmix, have you had the chance to compare the triodes with a hypex then?

[dcollins]

crna59 wrote on Sat, 05 April 2008 14:36

I'll solve the whole issue...  <$5k  Hypex wins..   >$5k Pass Labs wins!!

The Hypex should run with any amp, regardless of price.....


DC

[Ross Hogarth]

i've been mixing on the CI Audio hypex amp for 2 weeks now
I am very happy with my results
my speakers have never been sounded better or seemed to translate better
making eq decisions seems easier

[tom eaton]

Hi Ross-

Are you using the 100 or the 200?

Thanks!

tom

[crna59]

dcollins wrote on Tue, 08 April 2008 18:29

The Hypex should run with any amp, regardless of price..... DC

Yeah... "should". Guess everyone should just buy the Hypex because there's none better!


Regards,
Bruce

[dcollins]

crna59 wrote on Wed, 09 April 2008 15:39

Yeah... "should". Guess everyone should just buy the Hypex because there's none better!

More expensive is always better!


DC

[jimmyjazz]

Jerry, if you're interested in building some Hypex monoblocks and want to spread your cost out, give me a shout.  I'd like a pair, but I'm no tech.

[Ross Hogarth]

tom eaton wrote on Wed, 09 April 2008 13:47

Hi Ross- Are you using the 100 or the 200? Thanks! tom

i am using the 200
i could not have gotten by with the 100
sounds great
i am very happpy

[livingstone]

More than 2 monthes after my test,
i have finaly a pair of amp based on the UCD700HG,

i won't coment just on the Hypex because, many point have changed in my monitoring chain since this first test,
as i got now a prism ada8 i use its monitoring dac instead of my benchmark dac1.

the overall impression is a very good balance,
everthing seems in place naturaly,
bass extend more, mid range is more present and defined, highs are less bright than in my first listen, (this brightness came from the dac1 )
the sound stage is impressing, the wideness and the depth between front and backstage is jawdroping,

nothing more to say ... i'm just happy with this now  

thanks Bruno !

[Terry Demol]

dcollins wrote on Wed, 09 April 2008 00:29

crna59 wrote on Sat, 05 April 2008 14:36 I'll solve the whole issue...  <$5k  Hypex wins..   >$5k Pass Labs wins!! The Hypex should run with any amp, regardless of price..... DC

Hi DC,

Not sure whether u are being sarcastic here, anyhow a few
comments wrt class D amps and one discussed (CI) in particular:

I dug up some measurements on the CI amp here:

http://www.stereophile.com/solidpoweramps/805cia/index4.html

WRT distortion, there's plenty happening as you can see from the
spectrum plots. A good linear amp will still have quite a bit
less distortion than this and a very good one will have at least
10x less.

I have a nice linear power amp running which has somewhere around
100x less at close to full power (around -120dB / 20kHz / 200W /
4R).

Unfortunately I think if you compared a good -120dB/20kHz/FP
amp to the class D, you may still prefer the class D. The
'more extended top end' may be distortion? Clearly most good
linear amps are more extended and go to 100kHz or more.

Same goes for soundstage width and depth, guess why SET's have
unrivalled stage depth, width and dimension - a whole lot of
added harmonics in the right dose and area?  

Maybe class D just distorts in a completely different way than
linear amps, (including xover distortion which is very audible),
so the end result -sounds- cleaner and more extended, which after
all is the most important thing.

It would be nice if these FFT plots would give some damn
indication of what these things actually sound like - very
frustrating field audio.

OK - Just some food for thought.

cheers

Terry

[zmix]

Terry Demol wrote on Tue, 20 May 2008 22:45

I dug up some measurements on the CI amp here:  http://www.stereophile.com/solidpoweramps/805cia/index4.html

They actually brought up some compelling points in that review.  Since the Channel Islands amplifier is based on the Hypex modules, I'd like to know what Bruno thinks about their assertions.