Using the peak band of the EQP1A for bass?

[Peake]

I'm big on loving sound, small on understanding electronics, so here's a shot across the bow for any interested...would it be possible to use the variable-bandwidth band in the EQ, through the use of certain not-yet-determined component substitutions, in the bass region? I'd love to be able to use it at 80Hz, for example. Hopefully the required inductors would not be the size of a microwave oven?

Thanks for any insight/education..

BTW, I once heard the lovely EveAnna Manley say that 16KHz is the magic frequency on the Manley EQP-inspired release...I've never heard anything solid-state come close to adding that sort of sweetness at this frequency.

 

[strangeandbouncy]

  no inductors in the bass boost or cut . . . . check the schematic

 

[emrr]

are in the mid-EQ; search my posts.

Get an Audio Cyclopedia and study the charts and formulas.

 

[Nora]

You're gonna need a big inductor to get a reasonably high q for 80hz boost, but not microwave size.
I suggest: download a spice simulator (like ltspice - it's free)
Draw this specific part of the frequency and simulate while experimenting with LC values.

Gives you an idea of what your freq response will look like.

 

[JTraverse]

Sure it'spossible to do a lot of things. I personally haven't looked at the required the values needed, but it's possible to do. The challenge again is to find an inductor with similar specs. Need it be manufactured or can you do it yourself? A lot of work, but again, possible.

 

[lassoharp]

The cap only approach  in the EQP1A works great - been making people smile for many a year.

The stock 60Hz and 100Hz both work on the 80Hz band - if you must have 80Hz as center point then change cap values. I'd play around with the stock circuit first before attempting that kind of variation.

For LC I'd try starting with about 1H to keep cap size lower.

 

[QUEEF BAG]

i seem to remember one if the low frequency section of

MCI 428 consoles...don'y remember the freq it had though...

big, but not outta control  diameter of less than a  50 cent piece.
probably less than an inch thick

that's the only one i can think of a the moment

 

[emrr]

Auditronics

 

[Peake]

Thank you for the replies, I've been offline...

I'd meant modifying the midrange band with variable bandwidth to work in the lower frequencies, sorry for the lack of clarity. I'll check out the recommendations. Cheers!