MarkAudio CHP-90 mica + DDVP-12.5-ML [TQWT]

I installed CHP90 in a small TQWT.
CHP90 is high quality and powerful in all band.

 

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I installed CHP90 in a small TQWT.
CHP90 is high quality and powerful in all band.


@nandappe Thank you for the informative first hand user report, video, transfer functions and build plan.

I like that it's a 5" driver designed to be relatively flat and extended at each end with a + 89dB spl.

The published 0º Fq Resp plot appears to me to be better than MarkAudio drivers costing more than twice the price. Would be interesting to see a waterfall plot, etc.

Always overthinking ... So what's wrong or sub-par with CHP-90 for it to cost half of MA premeir series yet seemingly have TS parameters that measure better and in use perform as well or beter than the MA premier lines? Production scale vs., closer to hand made Alpair and MAOP, voice coil windings a less expensive off the shelf standard geometry unlike the more rectangular cross section VC wire of Alpair, easier to assemble than MS? IDK?
 
I don't know the details of CHP-90mica, but the hybrid cone of paper, mica, and Kevlar seems to have opened up a new world.
In total, the sound quality is comparable to MAOP, and 90mica is a cut above in smoothness.
The distorted piano sound is also pleasant to listen to.


Piano is one of the most difficult instruments to reproduce correctly. Well done nadappe. It gives a good insight into what the CHP-90 can deliver. Men's and women's voices are also important.
Glad you like the CHP-90. The price of them is surprisingly good on these units.
 
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I don't know the details of CHP-90mica, but the hybrid cone of paper, mica, and Kevlar seems to have opened up a new world.
In total, the sound quality is comparable to MAOP, and 90mica is a cut above in smoothness.
The distorted piano sound is also pleasant to listen to.

Only the lower octave tones, but when I listening to a friend of mine (professional pianist) playing "fortissimo" in his house almost always the sound is distorted in some lower octaves due to explosion, resonance (the dimensions of the room)
 
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