audio_exp
Member
I have a pair of EV S15-3’s for about 15 years now that I just love and fell in love with when I was a kid back in the early 80's. Well I plan to bring them back to life and make them my new listening room speakers. I know that these are not "audiophile" but do have the bones to make a very nice musical presentation.
The EVM-15L and the VMR's are original and work perfectly but one tweeter needs service. I think I may have a EV original replacement diaphragm. My pair was made in 1982.
My plan is to do a refurbishment to them by cleaning up and re-finishing the cabinets, re-building the cross-overs with new caps, re-seal the speaker cone edges, replace all the stock 24awg speaker wire with 14awg & replace stock 1/4” speaker jack's with heavy duty binding post’s.
The EV S15-3 manual:
https://www.manualslib.com/manual/43742/Electro-Voice-S15-3.html
The S15-3 uses a OEM EVM-15L 15” low frequency speaker:
https://www.electrovoice.com/binary/EVM-15L%20Series%20II%20EDS.pdf
and according to the specs it’s designed for use with a TL606 box design.
TL606 Box Design:
http://www.realoldiesradio.com/docs/EV/ElectroVoice_TL606.pdf
The suggested stepdown peak boost frequency for the TL606 is 45Hz.
So my first question and I thought I would ask some of the EV experts on here.
1. Is the S15-3 a TL606 Box?
2. If it Is a TL606 box is the S15-3 already made with the “Step-Down” integrated in the port design or would I block one of the ports?
3. If is Not a TL606 but still a T/S design, how can I figure out approximately what the “Peak Boost Frequency” should be as I would like to take advantage of the "Step-Down" feature and add an outboard Active EQ at the correct boost frequency?
I would be grateful for any info and help.
Thanks
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