Several people have PM'd me about the Sumo Delilah II, interested perhaps in why I have one, what it can do, any documentation about it. I've had it for some time, bought it from a business acquaintance back in about 2001. It's a simple two way crossover setup for adding woofers to existing systems that may or may not be full range. Originally it was designed to work with the Sumo Samson subwoofer, though keep in mind the timeframe in the 80's and that long throw subs as we know now didn't exist. Sumo was founded by James Bongiorno, the founder of GAS, designer of AMPZILLA, and many other amplifiers at SAE, and even the Dynaco ST400. The main product focus of Sumo was amplifiers and preamps, though they did some speakers, including the Opus one, which used full conjugate networks (kind of like the Ardent) and presented a mostly resistive load to the amplifier.
I've scanned the manual (last night), and here's a link for a PDF, under 6 MB.
Sumo Delilah II Manual.pdf
The nice thing about this unit is the flexible crossover tuning possible with low order slopes, and the point that the high pass is a strictly class A non feedback buffer- about as transparent as you might want, aside from upgrading the caps. (on my list of to-do's).
Will post pictures of front and back panel soon. Nothing on the Holonet worth warm spit.

I've scanned the manual (last night), and here's a link for a PDF, under 6 MB.
Sumo Delilah II Manual.pdf
The nice thing about this unit is the flexible crossover tuning possible with low order slopes, and the point that the high pass is a strictly class A non feedback buffer- about as transparent as you might want, aside from upgrading the caps. (on my list of to-do's).
Will post pictures of front and back panel soon. Nothing on the Holonet worth warm spit.


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