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Re: LP1 tech question



yes you are right it is unbalanced line level. My mixer outputs a balanced line level...

ANtony


From: Simeon Harris <simeonharris40@googlemail.com>
To: Loopers-Delight@loopers-delight.com
Sent: Fri, June 17, 2011 10:58:47 AM
Subject: Re: LP1 tech question

somebody said the lp-1 runs at instrument level. this is not true. it runs at line level. i had mine running perfectly in a line level environment with no adjustments to input or output gain levels in the lp-1, or in the mixer i was using. everything was set flat and it ran quietly at the exact level i wanted.

a quick look at the manual confirms this - 

Audio inputs: 

Audio inputs are 1⁄4-inch unbalanced connectors.  These inputs accept line-level inputs 

with an impedance of approximately 20k Ohms.  

Audio outputs: 

Audio output are 1⁄4-inch unbalanced connectors.  These are line-level outputs and should 

only be connected to line-level inputs of other equipment.  Audio connections should be 

made before powering on the unit.  By default, the LP1 is configured to pass the audio 

input with almost exactly the same level at the output.  However, when multiple loops are 

running simultaneously or after an overdub, it is possible to overdrive the output 

converter.  In this case, it is recommend that you reduce the Master Level from the ALL 

track menu.  A setting of -2 is usually sufficient to guarantee that this type of distortion 

does not occur. 



On Fri, Jun 17, 2011 at 9:45 AM, andy butler <akbutler@tiscali.co.uk> wrote:

antonyhequet@yahoo.com wrote:
Andy,

are you talking about the internal output gain of the LP1, not sure if I ever found the access to it but will check again...


Hit the ALL button
select Master Level Hit Enter
set it to -1 ( at level 0 there's a strong likelihood of distortion
 as you build up tracks).
then forget about it.


Charles is of course right that it's nothing to do with impedance,
and what you are experience is just a level matching issue.

The LP1 is not an "instrument level device", it's a line level device
which runs at what is usually called "consumer audio" level,
some way between the old -10dB standard for consumer audio and
the +4dB pro audio level which is standard in studios.


Anyway, you seem to be sorted :-)

andy