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Old 6th March 2010, 03:04 PM   #1
john65b is offline john65b  United States
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Default Sescom MI-14 as SE to XLR?

Hey all,

I have a bug up my butt to try the balanced connection into my ASP1000 from my Single Ended Aikido Preamp.

I have a pair of Sescom MI-14 Transformers and have hooked up the amp as shown in the attachment below. All sounds OK, but bass is quite lacking compared to SE input into the ASP1000 (I have a switch from SE to XLR, so I can hear difference real time). As of now I prefer the SE connection, but want to see if there is a better design...Its a 150R or 600R primary and 150R or 600R dual secondary. I have it hooked up with 600R / 600R.

Anyway, is there a better way of wiring up the Sescom Transformer? I got the 5K/5K from a Jensen SE to XLR schematic.

Appreciate the help.
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Old 7th March 2010, 11:39 AM   #2
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I don't think the Aikido can drive the 600 ohm load of the transformer. Try a transformer with a 15K primary and a 600 ohm secondary and I'll bet you won't loose the low end.
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Old 7th March 2010, 03:01 PM   #3
john65b is offline john65b  United States
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Hmmm, yes, I see. I calculated my Aikido output impedance being around 600R, so may be a bit of a challenge with this transformer...
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