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Old 16th March 2008, 08:38 PM   #1
MikeW is offline MikeW  United States
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Default fullrange speakers and Pass labs amps

I finally got some full range speakers to go with my F1. It sounds very good. What other Pass Labs amps do you recommend to drive full range speakers? Would a tube amp give better bass?
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Old 16th March 2008, 09:05 PM   #2
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I'm using the audiophile hipster fanboy approved combination of an F3 with Zu Druid IVs. They sound great. I want a bit more bass, and plan to get it with a sub (or 2) rather than fiddling with the amp.
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Old 16th March 2008, 09:22 PM   #3
Magura is offline Magura  Denmark
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ZV9 set as current source does a great job.

A balanced ZV9 (think differential pair) is great as well. Go inductor load if you want the full monty.


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Old 16th March 2008, 09:43 PM   #4
MikeW is offline MikeW  United States
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I have a V9. It does not sound as good as the F1 with these speakers. How do I use the V9 as a current source?
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Old 16th March 2008, 10:51 PM   #5
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Default ZV9 as current source

Mike,

I think if you remove the feedback and the Aleph current
source then you will have a current source. (Installment
2 of ZV9 article.)

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Dennis
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Old 16th March 2008, 10:55 PM   #6
Magura is offline Magura  Denmark
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Quote:
Originally posted by MikeW
I have a V9. It does not sound as good as the F1 with these speakers. How do I use the V9 as a current source?

Dennis beat me on the re-config for current source of the ZV9, so I'll just add a bit to it, as it is described well in the ZV9 article.

The most probable reason for the lack of bass with your by the book ZV9, is that the DF is too high. I tuned mine with a pot in series with the NFB.

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Old 16th March 2008, 11:27 PM   #7
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The most probable reason for the lack of bass with your by the book ZV9, is that the DF is too high. I tuned mine with a pot in series with the NFB.

And DF, NFB stand for what?
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Old 17th March 2008, 12:51 AM   #8
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Quote:
Originally posted by bluemartini
The most probable reason for the lack of bass with your by the book ZV9, is that the DF is too high. I tuned mine with a pot in series with the NFB.

And DF, NFB stand for what?

Damping Factor

Negative Feed Back
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Old 17th March 2008, 01:46 AM   #9
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Default Re: fullrange speakers and Pass labs amps

Quote:
Originally posted by MikeW


I finally got some full range speakers to go with my F1. It sounds very good. What other Pass Labs amps do you recommend to drive full range speakers? Would a tube amp give better bass?


I could recommend tube pre + F4.
In my opinion, F4 has great values in sound and others, e.g. fun of several variations as described in Papa's writing.
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Old 17th March 2008, 02:00 AM   #10
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So does that mean the pot is placed to between R16 and R17? so that the damping factor can be adjusted as desired?
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