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I have an M3 that I gig with regularly with a Motion Sound Pro3 and a Roland KC300. The way I have mine wired for the 1/4" out is as follows: I removed the leads from the speaker (which sounds fantastic in my Fender Hot Rod Deluxe BTW) and connected a female 1/4" jack. From the jack, I run to a Behringer Ultra-DI, which has 2 20db attenuation buttons, which I keep depressed. From this I run to the Motion Sound. Is this OK? I think it supplies the power amp with a load, as to not burn up the OT, and it cuts the signal going to the MP considerably. Thoughts? Suggestions? Thanks!B-)
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You should put a power resistor across the 1/4 inch output to replace the speaker resistance.
http://www.ebay.com/itm/10-Ohm-10w-D...-/320757994835Attached Files1969 Hammond A-105, Leslie 22H, 1961 M3
XK3-C, VK8-M, Boss RT-20, Neo Ventilator
Roland XP-30 (3), XV-5080 (2), Various Fatar/Studiologic Weighted Contollers (SL-1100, 1176, 880) -
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Cool. I was under the impression that the Ultra-di would essentially do the same, is that not so? It's rated to handle something crazy like 2000 watts to the input. Is that resistor pretty simple to wire up? I'm a little ignorant to this wiring stuff when it comes to ohm loads and power.Comment
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The M3's amp expects to see an 8ohm load. A DI will act as an open circuit. SPF1954 is right. You need an 8 watt power resistor rated for at least 20Watts. You can get them at Radio shack. Put this in parallel with an audio pot and you can control the level of the output. If you want line level, you'll need to trim down from the 11 Watts coming out of the power amp.
This is is what you want. http://www.dairiki.org/HammondWiki/LineOutFromASpinet
When I built mine, the output was still a little hot so I substituted the 1K resistor and 20K pot with a 10K resistor and 10K instead.1961 Hammond A100 | 1955 Hammond M3 | 2011 Hammond SK1 | Leslie 145 | Neo Ventilator | Yamaha S70XS | Roland RD-300NXComment
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Man, there is like 1000000 different schematics out there, all being very different. If I intend on still using my ultra-di, can I just place an 8 ohm 25 watt resistor between the power amp and 1/4" out?Comment
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You have to determine what type is your m3, yes they are not all the same at the output. Then you can choose one of those:
Cheers
BoyanComment
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Right . Mine didn't come with a voice coil speaker, I believe it to be a 1962.Comment
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I believe you mean an electromagnet speaker(4 terminals), as opposed to a permanent magnet speaker(2 terminals)?Originally posted by Robert Harlow View Post1956 M3, 51 Leslie Young Chang spinet, Korg Krome and KronosComment
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Yeah that's what I meant. Mine only has 2 wires.Comment
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You don't put the power resistor inline. You wire it up exactly as the speaker was wired so that the amp thinks the speaker is still there.Originally posted by Robert Harlow View Post
Solder one end to where ever you have the green wire locked in place and the other end to the black wire.
Or just wire it across the ground and hot on your 1/4" jack.1969 Hammond A-105, Leslie 22H, 1961 M3
XK3-C, VK8-M, Boss RT-20, Neo Ventilator
Roland XP-30 (3), XV-5080 (2), Various Fatar/Studiologic Weighted Contollers (SL-1100, 1176, 880)Comment
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It's that simple? Just put the resistor between the power amp and 1/4" jack, and then send that to my DI box?
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As in....
Green
------------| |---------
(Resistor) | |. >. 1/4" jack
------------| |---------
BlackComment
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If your jack is panel mount, the easiest way is to solder the resistor in at the jack. One end of the resistor on hot, the other end on ground.Current organs: AV, M-3, A-100
Current Leslies: 22H, 122, 770Comment
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Such a simple answer to what seemed like a rather simple question. Thanks a ton, I'll go pick up a resistor tonight!Comment
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Hammonds are really simple machines (1930s technology, you know) :)Current organs: AV, M-3, A-100
Current Leslies: 22H, 122, 770Comment
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