[rodgersorgan] Re: New member with a 750 EXT spkr question.


I'm in the process of installing an analog Rodgers Organ in my home and it too 
requires speakers and I purchased five 100watt amps to drive speakers that I 
don't yet own. However I am working with an engineer who also installed a 
Rodgers organ in his home and what I will do is access his knowledge and see 
what he would recomend as an answer to your question. He, like you demands 
excellence and I know I can trust his judgement, so tomorrow I will email him 
at work with your problem.

Rich

----- Original Message -----
From: George Hamma
Sent: Monday, May 26, 2003 10:10 AM
To: rodgersorgan@xxxxxxxxxxxxx
Subject: [rodgersorgan] Re: New member with a 750 EXT spkr question.  



Greetings,

The Rodgers organ that was pulled out had three balanced line audio  
outputs:  great, swell, pedal.  Each fed its own external power amplifier  
and speakers.  Those cables, amplifiers, and speakers are still installed  
and work fine.

I am seeking a way to integrate the "new" 750 (with internal speakers we  
would probably not use) so that it can feed these balanced line input  
amplifiers in a similar manner.  One way might be find a place in the  
circuitry to insert high input impedance single-ended to low impedance  
balanced transformers, one for each signal source, and couple to the  
existing facility cables.   Based on my past experience, just wiring into  
the internal speaker wires (of which there are two sets) may not provide  
the service and quality I'm seeking. Alternatively, there might be  
something from Rodgers (like there was in the previous organ) to  
conveniently provide the converted set of signals.

-George Hamma

-------------Reply 1 ----------------------
I have to ask how many amps are the amplifiers? The next thing I would  
think is
that fi you spliced into the speaker wires and run them in  series, you should
be able to have all speakers working. Unless I'm misunderstanding what it is
that you are trying to do.

Rich

----- Original Message -----
From: noel jones
Sent: Sunday, May 25, 2003 8:31 PM
To: rodgersorgan@xxxxxxxxxxxxx
Subject: [rodgersorgan] New member with a 750 EXT spkr question.



Greetings,

I have been asked by a local church in Sunnyvale, CA that is replacing an  
older

Rodgers organ with external house speakers and amplifiers with a 750 having
internal speakers and amplifier.  I'm looking for information about doing the
internal -> external connections to the 600-ohm shielded twisted pair lines  
to
the existing amplifiers.  Naturally, we ended up with an owners manual but  
have

not located any schematics so far.

-George Hamma




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