Mailist to discuss all issues regarding the Digitech GSP-2101 Guitar FX Processor

I just purchased a  Digitech IPS 33B - Super Harmony Machine - whats 
the best / proper way to add it into my rack?

The three main components are ... 

GSP 2101   |   IPS 33B    |  Marshall 8008

others include tuner, power conditioner, wireless ...

I imagine I need to use the midi ins, outs, or thrus, but in which 
order?   I want to use the 2101 mainly, but would like to program it 
to call on the IPS for certain patches.

Any assistance would be appreciated - thanks.

--- In gsp-2101@yahoogroups.com, "mylernascar" <wiredducks@e...> 
wrote:
>
> 
> I just purchased a  Digitech IPS 33B - Super Harmony Machine - 
whats 
> the best / proper way to add it into my rack?
> 
> The three main components are ... 
> 
> GSP 2101   |   IPS 33B    |  Marshall 8008
> 
> others include tuner, power conditioner, wireless ...
> 
> I imagine I need to use the midi ins, outs, or thrus, but in which 
> order?   I want to use the 2101 mainly, but would like to program 
it 
> to call on the IPS for certain patches.
> 
> Any assistance would be appreciated - thanks.
>

MIDI out 2101 to MIDI in IPS 33B
2101 f/x send OUT to IPS 33B IN
IPS 33B L/R OUTS to 2101 L/R f/x returns IN

2101 MIDI table will control 33B - 2101 can control 4 different midi 
devices at once. 

Set 2101 f/x send to SUM (for Mono) or NO SUM (for stereo - 
different 
harmonies on either side) to access f/x loop hit compressor button 
on 
2101 & previous parameter button to go one screen left see page 103 
of 
manual for schematic.

Any time you only want a 2101 program (with no 33B signal) set f/x 
loop to bypass. f/x loop of 2101 has to be set up per program.

Hope this helps

Cheers,
starstring

I use a Digitech DHP-55/S5000 with my 2101 and MP-1 and this is what I 
usually recommend for a pitch shifter/harmonizer like the DHP-55/Studio 
5000, and also applies to the IPS 33B

We typically recommend that the unit be used in an FX loop of another 
processor like the 2101, and have a split (clean) guitar signal feeding 
the input of the DHP55 as well as the 2101. The pre-amp output (FX 
send) from the 2101 is then fed into the FX-return of the DHP-55 and 
the outputs of the DHP-55/S5000 is then fed into the FX return of the 
2101. Output to the amp(s) are from the 2101 outputs.

The clean signal input to the DHP-55/S5000 is used for pitch tracking 
-- this is the most accurate way to get a lightning fast lock on a note 
(a distorted note is wayyyyy harder to track). The pitch tracking info 
is then passed on to the digital section of the DHP-55 which gets the 
actual guitar tone (with the distortion and all) from the FX return and 
applies the pitch shifting to the distorted tone.

Adrian Teo
Function7 Engineering

On Jan 3, 2006, at 3:48 PM, Graham Pearson wrote:

> A couple of points regarding the previous message from StarString.
>  
> 1. Harmonizers usually work better with a pure guitar tone rather than 
> a processed one.  If you find the IPS 33B is having trouble analyzing 
> your guitar signal after the analog section of the GSP-2101, put your 
> guitar signal through your harmonizer before putting it through your 
> 2101.  I think you'll find this improves your tone particularly when 
> using the 2101's distortions.
>  
> 2. The explanation of the FX Loop settings SUM and NO SUM is not 
> accurate.  Here's the text from MIDIWizard's Help Topic entitled "FX 
> Loop Return":
>  
> Bypass – the FX Loop Returns are off and completely ignored.  From the 
> factory, every program in the GSP-2101 has the FX Loop set to Bypass.
>  
> Summed – the FX Loop Returns are summed together with the guitar input 
> signal using a 50:50 ratio.  Use this setting if you are using a 
> second effects processor to augment the GSP-2101.  In this situation, 
> you would connect the FX Send from the GSP-2101 to the input of the 
> second processor and then connect the output(s) of the second 
> processor to the FX Loop Return(s) of the GSP-2101.
>  
> No Sum – if plugs are connected to the FX Loop Return jacks, they are 
> the primary signal source and any guitar input is completely ignored.  
> If there is no signal present at these jacks, you don’t hear anything 
> from the GSP-2101.  When the jacks aren’t used, No Sum behaves the 
> same as Bypass.
>  
> Use the No Sum setting if you have a second effects processor and you 
> want to bypass the analog section of the GSP-2101 (the Compressor, 
> Distortion, Analog EQ, and Master Volume).  In this situation, you 
> would connect your guitar to the input of the second processor and 
> connect the output(s) of the second processor to the FX Loop Returns 
> of the GSP-2101.
>  
> Planet Texas
>
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>

May I complement Graham's note by suggesting the following routing, 
which in my opinion is the most flexible one (in fact, this is how I 
have my setup arranged):

Guitar -> 2101 guitar IN -> 2101 FX loop OUT -> external mFX IN -> 
external mFX OUT -> 2101 FX loop IN 

This way, you can still use the 2101's analog section if so wanted 
and bypass the external mFX (FX loop Bypass), or blend them (FX loop 
Sum), or simply turn OFF the compressor, distortion and analog EQ on 
the 2101 and your guitar signal will pass thru directly to the FX 
loop OUT to your external mFX unit. You have the best of both worlds 
this way. I have an external compressor and a Triaxis which get 
their signal from the 2101 FX loop OUT and feed it back to the 2101 
FX loop IN. For Vaish's sounds I bypass the external units and use 
the 2101's analog FXs, for my regular sound, I turn OFF the whole 
2101's analog section and the external units take over.

Just my 2 cents.

Gus.


--- In gsp-2101@yahoogroups.com, "Graham Pearson" <gpearson@k...> 
wrote:
>
> A couple of points regarding the previous message from StarString.
> 
> 1. Harmonizers usually work better with a pure guitar tone rather 
than a processed one.  If you find the IPS 33B is having trouble 
analyzing your guitar signal after the analog section of the GSP-
2101, put your guitar signal through your harmonizer before putting 
it through your 2101.  I think you'll find this improves your tone 
particularly when using the 2101's distortions.
> 
> 2. The explanation of the FX Loop settings SUM and NO SUM is not 
accurate.  Here's the text from MIDIWizard's Help Topic entitled "FX 
Loop Return":
> 
> Bypass - the FX Loop Returns are off and completely ignored.  From 
the factory, every program in the GSP-2101 has the FX Loop set to 
Bypass.
> 
> Summed - the FX Loop Returns are summed together with the guitar 
input signal using a 50:50 ratio.  Use this setting if you are using 
a second effects processor to augment the GSP-2101.  In this 
situation, you would connect the FX Send from the GSP-2101 to the 
input of the second processor and then connect the output(s) of the 
second processor to the FX Loop Return(s) of the GSP-2101.
> 
> No Sum - if plugs are connected to the FX Loop Return jacks, they 
are the primary signal source and any guitar input is completely 
ignored.  If there is no signal present at these jacks, you don't 
hear anything from the GSP-2101.  When the jacks aren't used, No Sum 
behaves the same as Bypass.
> 
> Use the No Sum setting if you have a second effects processor and 
you want to bypass the analog section of the GSP-2101 (the 
Compressor, Distortion, Analog EQ, and Master Volume).  In this 
situation, you would connect your guitar to the input of the second 
processor and connect the output(s) of the second processor to the 
FX Loop Returns of the GSP-2101.

> 
> Planet Texas
>