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Post by jazzdad on Apr 5, 2024 21:45:52 GMT
Is it better to use the power amps gain pots to allow for a more usable range on the preamp, or keep them wide open and use in line attenuators after the XLR connection?
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Bigman80
Grandmaster
AA Founding Member & Bigbottle Audio Creator
Posts: 16,091
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Post by Bigman80 on Apr 5, 2024 22:04:11 GMT
Is it better to use the power amps gain pots to allow for a more usable range on the preamp, or keep them wide open and use in line attenuators after the XLR connection? Best to bypass them all together.
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Post by jazzdad on Apr 5, 2024 22:17:32 GMT
I agree. But it's either get rid of the amp or use one of the two. Both are going to be detrimental to the sound but which is worse
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Bigman80
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AA Founding Member & Bigbottle Audio Creator
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Post by Bigman80 on Apr 6, 2024 3:39:52 GMT
The pots are in the circuit regardless of whether you add the attenuators or not..so I'd be reluctant to add another thing in the chain.
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Post by stryder5 on Apr 6, 2024 17:38:24 GMT
Isnβt gain staging a reasonable solution?
Gary
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Post by jazzdad on Apr 6, 2024 18:51:45 GMT
The manufacturer says when the gain pots are at maximum they're out of the circuit and the amp will sound at its best. How much worse when they're turned down it's hard to gauge. Having a useful range of the reamp is also pretty important
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Bigman80
Grandmaster
AA Founding Member & Bigbottle Audio Creator
Posts: 16,091
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Post by Bigman80 on Apr 6, 2024 19:09:57 GMT
The manufacturer says when the gain pots are at maximum they're out of the circuit and the amp will sound at its best. How much worse when they're turned down it's hard to gauge. Having a useful range of the reamp is also pretty important Well, they can't be in circuit and out of the circuit just by opening them to full volume? Unless there is something else in there that I haven't seen before. You can have them wide open, which is effectively zero resistance, but even then they are still in the circuit. What amplifier is it?
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Post by jazzdad on Apr 7, 2024 12:39:09 GMT
It's the Parasound A21. Really difficult to set the gain pots aswell because there's no click on the turn.
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Bigman80
Grandmaster
AA Founding Member & Bigbottle Audio Creator
Posts: 16,091
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Post by Bigman80 on Apr 7, 2024 13:59:02 GMT
It's the Parasound A21. Really difficult to set the gain pots aswell because there's no click on the turn. Yup, absolutely no way they aren't in circuit all the time (IMO based on the photos online) firebottle may be willing to remove them, or bypass them, which would be the absolute best solution (again, in my opinion)
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Post by macca on Apr 7, 2024 14:10:21 GMT
best to have the pots wide open and adjust volume on the pre but if you've got no range that way there's not really any harm backing the pots off a bit. That amp has very low noise and distortion you're very unlikely to hear any degradation in SQ.
Ideally get a pre-amp that has lower gain.
Never liked in-line attenuators myself - sticking plaster solution. Sometimes they work.
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Post by jazzdad on Apr 7, 2024 14:11:35 GMT
Do you think I should use the pots to decrease gain or have them fully open with in line attenuators? If they're always in the circuit anyway I guess using the pots would be the better option
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Post by macca on Apr 7, 2024 15:02:53 GMT
Use the pots - that's what they're there for.
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Post by jandl100 on Apr 7, 2024 17:54:19 GMT
It's possible to be too obsessive about things. Use the pots and just put some music on. I used to have a Parasound A21. Very nice amp. Just enjoy it.
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Post by sq225917 on Apr 8, 2024 21:48:37 GMT
Just sit further away from your speakers!
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Post by jazzdad on Apr 9, 2024 10:39:56 GMT
Just sit further away from your speakers! ππ
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Post by jazzdad on Apr 9, 2024 10:40:15 GMT
Just sit further away from your speakers! Well said!
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