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News: Come see us February 11, 8-5 at the Head-Fi meet at the Burlingame Double Tree Hotel, Burlingame, CA. We'll be bringing lots of headphones and amps, and our prototype tube DAC used with our music server and the latest version of Amarra.

www.head-fi.org/t/584924/official-2012-bay-area-meet-thread-california-february-11th-saturday
 
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Author Topic: Headphone AND Line amp  (Read 961 times)
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Wanderer
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« on: December 06, 2009, 01:21:41 PM »

I read the following in another Quickie thread - a snip of a Doc B qoute:

"....I was using a Quickie that had the Speco transformer mod for high impedance headphones, which is about 3dB down at 80Hz, as a line stage..."

Does this mean that were I to use my headphone mod Quickie as a line preamp I would get responce that was lacking in bass?  Is there any fix for the drooping bass responce from the output RCAs in a Quickie with the Specos? Bigger caps perhaps? ...or rig a switch to take the Specos out of circuit when using as a line amp?
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Paul Joppa
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« Reply #1 on: December 06, 2009, 02:02:01 PM »

Yes, I believe that is exactly what it means. To restore the deepest bass, either take the Speco out of the circuit, or replace it with a transformer that has more inductance at small signal levels.
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Paul Joppa
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