[HAM] Q: Bit more "hump" - story of two a100's and one 122

[joe doria]

Ok, thanks for the responses.
So, it is possible to get a different sound (better bass response) by 
connecting via the ao-39....there actually IS a difference.  It's not just 
me "thinking" there's a difference.

So I have 3 a-100's, 1 connected via a kit off the ao-29, one connected via 
the 5-pin of the ao-39, and one with a 6-pin socket swapped in at the ao-39.
To me it seems I'm hearing better/different (in a good way) bass from the 
ones connected via the ao-39 when comparing to my C-3 or other a100 (kit off 
the ao-29.


>From: "Kon Zissis" <kziss at ozemail.com.au>
>Reply-To: The Hammond Forum <hammond at zeni.net>
>To: "Hammond at zeni. net" <hammond at zeni.net>
>Subject: [HAM]  Q: Bit more "hump" - story of two a100's and one 122
>Date: Sun, 26 Nov 2006 09:16:08 +1100
>
>Joe Doria  wrote :
>What are the reasons (if even valid) for the leslie connected to the
>a-100 -
>where the 6-pin is coming off the ao-39 to appar to sound like it has
>more
>"hump" (bass hump, tad more power it seems, etc) over the the other
>a100.
>
>Is there a valid reason?
>Is it impossible that there even could be a difference?
>
>Hi Joe.
>At the balanced input of the AO39 power amplifier in the A100 organs
>there is a bass boost / high cut  circuit created  by a 47 K resistor in
>series followed by a 33 K  resistor  to ground in parallel with a 10 K
>resistor in series with a 0.1 mfd capacitor to ground.  If the 0.1 mfd
>capacitor is shorted out the bass boost effect will then be  removed
>and the  resistor  circuit would then act as a simple  signal level
>attenuator.
>
>All the best.
>Kon
>--
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>

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