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-   -   High bandwith and dampening rate? (http://www.diyaudio.com/forums/solid-state/229675-high-bandwith-dampening-rate.html)

dude2010 9th February 2013 01:33 PM

High bandwith and dampening rate?
 
My doxa 73 is over 1 MHz in bandwith, it sounds almost indefinitely in the highs. But dampening rate is too low to control even a 8" 87dB woofer.
My Parasound HCA 2200 mk II is the exact opposite.

How do I combine the two, without having to pay a zillion dollars?

unclejed613 9th February 2013 09:46 PM

sounds like your doxa uses little or no global feedback. and as a result has a high output impedance. it takes a bit of global feedback to control cone motion.

TANDBERGEREN 10th February 2013 01:45 AM

You really need to pay a zillion dollars:D

dude2010 10th February 2013 09:33 AM

Quote:

Originally Posted by unclejed613 (Post 3363144)
sounds like your doxa uses little or no global feedback. and as a result has a high output impedance. it takes a bit of global feedback to control cone motion.

Is there a way to add the feedback, if that is the key needed?
Cause the Doxa has all the freaking finer things in life, 3D, space, high resolution - but bass control.

If not, is there a particular amp around 1Mhz bandwith, that can be interesting to have a look at?

dude2010 10th February 2013 09:34 AM

Quote:

Originally Posted by TANDBERGEREN (Post 3363391)
You really need to pay a zillion dollars:D

Usefull - thanks a million

TANDBERGEREN 10th February 2013 10:18 AM

Quote:

Originally Posted by dude2010 (Post 3363737)
Usefull - thanks a million

Oh sorry sam.


Didn't concider total lack of humour here.

To alter an amps output impedanse requires to alter other parameters aswell.
I wouldn't go in to how much to be changed in Your DOXA, without effectively making a total different amp, or as You state in your first post: Using a zillion dollars.
Where an constructor goes to achieve particular properties in an amp determines a lot of the total construction of the amp. You never will be able to get around that fact.

But sorry again for trying to be funny.


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