Integra DHC-40.2 $1,200 pre-pro

[AcuDefTechGuy]

HTM Feb 2011 just reviewed the Integra DHC-40.2 pre-pro:

FR 20Hz - 20kHz +/- 0.0dB
THD 0.006%
Crosstalk -91dB
SNR -123dB

These numbers would put many $2,500+ pre-pros and AVRs to shame.

 

[PENG]

Onkyo, Denon, Yamaha, Pioneer consistently produced good numbers in those reviews. Too bad the other two don't offer Audyssey. There are other makes, such as Marantz, that do not yield as good numbers but people say they just sound good regardless.

 

[KEW]

Not to take anything away from Onkyo - those are superb specs!

FR 20Hz - 20kHz +/- 0.0dB

Shame on HTM!

To say +/-0.0 to most people means it is perfect.

Most people who deal with numbers, accuracy, and significant digits would interpret it as +/-0.049 or less.

 

[AcuDefTechGuy]

Not to take anything away from Onkyo - those are superb specs!



Shame on HTM!

To say +/-0.0 to most people means it is perfect.

Most people who deal with numbers, accuracy, and significant digits would interpret it as +/-0.049 or less.

Picky!

Actually, their exact numbers were -0.00dB @ 20Hz & -0.02dB @ 20kHz.

Crosstalk was -90.76dB left-to-right and -92.50dB right-to-left.

SNR was -123.20dBA.

THD was 0.006% @ 1kHz & 1watt.

 

[GranteedEV]

Thanks... but it's Integra and I'm irrationally biased!

 

[Warpdrv]

Integra and onkyo.... bleed the same customer service, heat and clicking problems

Funny how Integra's own site posts different #'s

THD (Total Harmonic Distortion) 0.05%(Power Rated)
Signal to Noise Ratio 106 dB

 

[jostenmeat]

Integra and onkyo.... bleed the same customer service, heat and clicking problems

Funny how Integra's own site posts different #'s

THD (Total Harmonic Distortion) 0.05%(Power Rated)
Signal to Noise Ratio 106 dB

Then I guess that is evidence that they understate their numbers?

 

[Warpdrv]

Then I guess that is evidence that they understate their numbers?

agreed.... intriguing...

Does this unit come with XT32....?

 

[STRONGBADF1]

agreed.... intriguing...

Does this unit come with XT32....?

Nope. http://www.audyssey.com/products/?cat_filter=38

 

[Warpdrv]

Nope. http://www.audyssey.com/products/?cat_filter=38

Thats pretty sad.... receivers have XT32...

I'm holding out for pre-amp products that at least have XT32 - XT is old school

 

[ntrain42]

Thats pretty sad.... receivers have XT32...

I'm holding out for pre-amp products that at least have XT32 - XT is old school

Audyssy XT and XT32 to me are pretty much worthless(like all auto tune functions IMO). Never been a fan of auto calibrators. Best results always come from manual settings using an RTA and pinknoise.

 

[AcuDefTechGuy]

Audyssy XT and XT32 to me are pretty much worthless(like all auto tune functions IMO). Never been a fan of auto calibrators. Best results always come from manual settings using an RTA and pinknoise.

You and me both.

I couldn't care any less if they came out with Audyssey XT64 or XT128 or XT256.

But they have to try and please everyone. As long as that PURE DIRECT function is there to bypass all EQs, Tones, DSPs, I don't mind.

I know it doesn't mean much, but I just wanted to point out that the $30K Mark Levinson preamp doesn't have any kind of Room EQs or Tones or DSPs.

And that's the way I like it - Uh Ha.

 

[jostenmeat]

Audyssy XT and XT32 to me are pretty much worthless(like all auto tune functions IMO). Never been a fan of auto calibrators. Best results always come from manual settings using an RTA and pinknoise.

You should be careful about using the word "always". Yes, sometimes XT wasn't reviewed to be particularly excellent, well, particularly by an owner of an acoustic panel company. Most other times, when the Audyssey calibration is compared vis-à-vis with their own RTA/REW calibrations, the Audyssey did every bit as well, including with Kal Rubinson. In some cases I've read about, it exceeded the end user's calibration.

Always?

You and me both.

I was not aware that you calibrated your system using RTA.

Do you happen to implement acoustic panels as well?

 

[AcuDefTechGuy]

I was not aware that you calibrated your system using RTA.

I am so old-school, man.

I know I'm into HTPC and HDMI, but I am still pretty much an "Analog" person.

So I just do the simple SPL meter thing.

However, the SPL meter isn't analog - it is digital.

I've tried the Audyssey several times on both my 5308 and AVP-A1, but I never found the sound to be better in the Flat Response curve or any curve.

So my believe is that everyone should try Room EQ several times to see if any of the Room curves improve the sound.

Oh, and the four 48" x 24" x 4" ATS acoustic panels are in the closet since they did not improve the sound at all.

 

[jostenmeat]

Oh, and the four 48" x 24" x 4" ATS acoustic panels are in the closet since they did not improve the sound at all.

I am curious about these panels, what they're made of, color, and if you want to get rid of them perhaps.

I can add them to my collection of GIK and Real Traps. Maybe after some ATS, I can later move on with Auralex, Ready Traps, then perhaps grudgingly DIY.

 

[its phillip]

Or you can mail them to me, since I don't have any

 

[ntrain42]

You should be careful about using the word "always". Yes, sometimes XT wasn't reviewed to be particularly excellent, well, particularly by an owner of an acoustic panel company. Most other times, when the Audyssey calibration is compared vis-à-vis with their own RTA/REW calibrations, the Audyssey did every bit as well, including with Kal Rubinson. In some cases I've read about, it exceeded the end user's calibration.

Always?



I was not aware that you calibrated your system using RTA.

Do you happen to implement acoustic panels as well?

"Always" represents the countless dozens of times I've used and compared auto cal units like XT, XT32,MCAC,EmoQ you name it compared/vs manually setting crossovers based on actual speaker design/tune point of the cabinet/panel, manually setting time delay/speaker distances and properly EQing said speakers using full range pinknoise via a professional hardware based RTA. The autocalibrators at times would give a decent ballpark, but never a truely accurate one. For some users Im sure they are fine and dandy, but for systems and users who truely want to most out of their systems ability in regard to tuning to their room accoustics, the auto calibration units arent very good at all.

My own personal audio and HT systems do in fact employ a number of custom built accoustic panels,diffusers and a few corner traps.

 

[ntrain42]

You and me both.

I couldn't care any less if they came out with Audyssey XT64 or XT128 or XT256.

But they have to try and please everyone. As long as that PURE DIRECT function is there to bypass all EQs, Tones, DSPs, I don't mind.

I know it doesn't mean much, but I just wanted to point out that the $30K Mark Levinson preamp doesn't have any kind of Room EQs or Tones or DSPs.

And that's the way I like it - Uh Ha.

All I care about when it comes to a reciever or processor is that it has a good set of DACs,video processor, plenty of manual xover points, a good multiband eq(the more bands the better)per channel, time delay function and up to date audio/video decoding function(like TrueHD,DTS MA)in the current supported surround format(that means basic 5.1, not 7.1 which is still pretty much useless with only a small handful of discs natively encoded in 7.1, or "DSX" or 11.2 or 20.4 etc ). To much fluff out there, not enough substance.

 

[ZeGhostbear]

Thats pretty sad.... receivers have XT32...

I'm holding out for pre-amp products that at least have XT32 - XT is old school

No need to hold out any longer: Onkyo PR-SC5508

Hunting for one right now

 

[KEW]

You and me both.

I couldn't care any less if they came out with Audyssey XT64 or XT128 or XT256.

But they have to try and please everyone. As long as that PURE DIRECT function is there to bypass all EQs, Tones, DSPs, I don't mind.

I know it doesn't mean much, but I just wanted to point out that the $30K Mark Levinson preamp doesn't have any kind of Room EQs or Tones or DSPs.

And that's the way I like it - Uh Ha.

I'm not well versed in Audyssey, but I seem to remember that its application using dipoles was not the routine process (they may have just said it did not work, I just remember that dipoles were "special").