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Left and Right Line Level Output Controls (Read 477 times)
pursuitofnow
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Posts: 233
Left and Right Line Level Output Controls
10/12/18 at 22:36:04
 
I'm considering the CSP3 for a preamp first and headphone amp second. I love that it has two inputs that I can utilize for switching between my digital path and analog path. It's not clear to me how the left and right line level output controls work. Do they allow different levels between the two inputs or do they control the left/right balance of one input?

I currently use a zstage on the analog side and have it set slightly higher to match the output of the zrock2 on the digital side. This allows near equal volume without adjusting the amp between the two sources. I'm thinking I could eliminate the zstage with the addition of the CSP3 if I can control the output of each input. Hopefully this makes sense and someone can let me know. Thanks.
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ANALOG: Thorens VN-150, 2M Black, ZP3, ZSTAGE
DIGITAL: PS Audio DirectStream DAC, ZBIT, ZROCK2
AMP: SE84UFO
SPEAKERS: Omega Super 3 HO XRS, DeepOmega 8
CABLES: Zenwave D4, ZSTYX
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Lon
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"Love without
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worthless!"
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Posts: 14821
Re: Left and Right Line Level Output Controls
Reply #1 - 10/13/18 at 14:57:26
 
On the page on the CSP3 Steve wrote:

B) Left and Right Headphone Calibration Controls.
These are used to calibrate the master volume control so that your headphones don't get too loud, too fast.  Typically set so that the master volume control is half-way up at your normal listening level. They can also be used to adjust the balance between the left and right ears.


You may still need your ZSTAGE as these calibration controls for the input control both inputs, not each one individually. . . .

I have a 25th Anniversary edition of the CSP3 and really love it. Mine Steve bypassed these input controls with a glass resistor, so I can't adjust the input levels, I just have "full throttle." That is a bit of a limiting factor for my headphones as I can't turn the amp up past 7 or 8 o'clock and get well into the 'amplifying' range, but I use it to drive a Taboo Mk IV for headphones and get fantastic sound, and to control my SE84UFO3 25th Anniversary Monoblocks wonderfully (I got mine with dual stereo outputs).
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HR-1,ZP3,ZTPRE,ZBIT,ZROCK2,SE84UFO3-25th, CSP3-25th;PS Audio:Soloist SE,DMP+DSD,P10, PowerBases,XStream Statemt spk cb,AC-12 power cds;Mapleshade:SamsonV2+V3;Oppo UDP-205;VooDoo Cremona +Amati,Iso-Pods;Aurios;MD90-T SE tuner; headphones: Oppo PM-1,Sennheiser HD800
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pursuitofnow
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Posts: 233
Re: Left and Right Line Level Output Controls
Reply #2 - 10/13/18 at 16:59:21
 
On the page on the CSP3 Steve also wrote:

C) Left and Right Line Level Output Controls.
These are used to dial in the gain of this preamp so that it is perfect with any amplifier.  You can adjust the outputs to between zero and six volts.  The trick to this is also simple.  Just turn them all the way down, turn on your amplifier, raise the master volume to around half-way up and then slowly adjust the output level controls to reach your normal listening level.  This guarantees a perfect match with any amplifier regardless of its input sensitivity and power.  These can also be used to adjust left/right balance between channels.


The last bit about left/right between channels is what is confusing me with regards to B) Left and Right Headphone calibrations. I think of headphones and speakers as the same thing when talking about adjusting left and right ears or left and right channels. Are left and right channels input one and input two in this context? And not left and right ear/speakers?
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ANALOG: Thorens VN-150, 2M Black, ZP3, ZSTAGE
DIGITAL: PS Audio DirectStream DAC, ZBIT, ZROCK2
AMP: SE84UFO
SPEAKERS: Omega Super 3 HO XRS, DeepOmega 8
CABLES: Zenwave D4, ZSTYX
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Lon
Seasoned Member
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"Love without
guts is
worthless!"
Philip K. D*ck

Posts: 14821
Re: Left and Right Line Level Output Controls
Reply #3 - 10/13/18 at 17:13:39
 
Either the input controls or the output controls can be used to adjust balance between left and right input channels or outputs channels. BUT the input cannot be used to adjust relative balance/volume to both inputs as they are wired to both input sources. You cannot adjust the relative volumes of one input in regards to the other, they are both influenced by each turn of either knob.
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HR-1,ZP3,ZTPRE,ZBIT,ZROCK2,SE84UFO3-25th, CSP3-25th;PS Audio:Soloist SE,DMP+DSD,P10, PowerBases,XStream Statemt spk cb,AC-12 power cds;Mapleshade:SamsonV2+V3;Oppo UDP-205;VooDoo Cremona +Amati,Iso-Pods;Aurios;MD90-T SE tuner; headphones: Oppo PM-1,Sennheiser HD800
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pursuitofnow
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Posts: 233
Re: Left and Right Line Level Output Controls
Reply #4 - 10/13/18 at 17:42:33
 
Got it, thanks for your help, Lon.
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ANALOG: Thorens VN-150, 2M Black, ZP3, ZSTAGE
DIGITAL: PS Audio DirectStream DAC, ZBIT, ZROCK2
AMP: SE84UFO
SPEAKERS: Omega Super 3 HO XRS, DeepOmega 8
CABLES: Zenwave D4, ZSTYX
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Lon
Seasoned Member
****


"Love without
guts is
worthless!"
Philip K. D*ck

Posts: 14821
Re: Left and Right Line Level Output Controls
Reply #5 - 10/13/18 at 19:22:45
 
You're welcome of course.

It just occurs to me that what you wish to accomplish can be done with the ZTPRE. In the manual for the ZTPRE is mentions that as an option one can have adjustable pots added to any input to allow matching of the outputs for each input. Says to contact Decware for pricing on this option. The ZTPRE is an AMAZING preamp, and expensive. (But with this option you could then do without your ZSTAGE).
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HR-1,ZP3,ZTPRE,ZBIT,ZROCK2,SE84UFO3-25th, CSP3-25th;PS Audio:Soloist SE,DMP+DSD,P10, PowerBases,XStream Statemt spk cb,AC-12 power cds;Mapleshade:SamsonV2+V3;Oppo UDP-205;VooDoo Cremona +Amati,Iso-Pods;Aurios;MD90-T SE tuner; headphones: Oppo PM-1,Sennheiser HD800
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pursuitofnow
Seasoned Member
****




Posts: 233
Re: Left and Right Line Level Output Controls
Reply #6 - 10/14/18 at 05:49:50
 
Interesting. I had been looking at the ztpre as well but didn't read the part about the matching of outputs option. Decisions, decisions...
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ANALOG: Thorens VN-150, 2M Black, ZP3, ZSTAGE
DIGITAL: PS Audio DirectStream DAC, ZBIT, ZROCK2
AMP: SE84UFO
SPEAKERS: Omega Super 3 HO XRS, DeepOmega 8
CABLES: Zenwave D4, ZSTYX
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