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Modifications on ASL Hurricane 200 DT ?

I am contemplating purchasing a used pair of ASL 200DTs that have been modified by Milan Bogdan, apparently a well-respected Nashville recording engineer.

Has anyone had any modifications done by this gentleman on their Hurricanes ? Has anyone heard of what kind of work he does on the amplifiers? By all accounts he can cut a great record, but is his choice of capacitors equally wise ?

Any information is greatly appreciated.

Dimitry
dimitry
dennis_the_menace's avatar
dennis_the_menace
467 posts
 
what type/how much of negative feedback does the ASL hurricane use? is this adjustable?
jeffreybehr's avatar
jeffreybehr
805 posts
 
Dennis, the ASL 'Cane uses NO overall or local feedback loops. E-mail me at jefreybehr(at)cox(dot)net and I'll send you (or anyone who asks) a JPG image of the schematic. Let me know if you have hi-speed or dial-up service, as the file CAN be quite large.
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dennis_the_menace's avatar
dennis_the_menace
467 posts
 
thanks jeffrey. i was just curious. from my experience, feedback in any form, in any amount, sucks the life out of the music. yeh, you get better control, but the cost in my mind is much too great. hi-fi turns into mid-fi.
response34's avatar
response34
169 posts
 
I agree Dennis. I too prefer designs without feedback but also find that some system combinations can do quite well with feedback. This is why I have feedback (a small amount - less than 5dB negative) in my 300B amplifiers that is also switchable to take it out of the circuit.
With the Hurricanes, there would be no need for feedback but with SET designs, the speaker choice now becomes much more critical.
hiend2's avatar
hiend2
418 posts
 
Talk about Renewing an old post well here we go,Just purchased a a pair of hurricanes, The oil Capacitor ones and am going to DIY the Caps and resistors at least, Not afraid to get in there.Whats the Current  top of the line caps  V Vap teflons?
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