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description: Audio advice and discussions with audiophiles and professionals. Free discussion forums, open to all and frequented by industry experts. Ask questions and get advice on stereos, speakers, hi-end amplifiers, pre-amps, home theater, tube hi-fi, turntables, vinyl, tweaks, music, films, video, DVDs and more.
items: 2Pi Coil across woofer?
items: Re: 2Pi Coil across woofer?

2Pi Coil across woofer?
type: item
description: I've got a schematic that almost looks like the coil is across the woofer and tweeter and doesn't show a series cap on the tweeter. Could it be so old it's for the Piezo version? The coil is in parallel on the Woof and the cap in series with the + Tweeter, right?
creator: Bill Epstein
date: 2013-01-11T17:01:38-00:00

Re: 2Pi Coil across woofer?
type: item
description: There has always been a 0.5mH coil in series with the woofer, even back when we were running piezos. It's inline on the "+" wire. So that's probably the coil you're talking about. There was no capacitor in either the woofer or tweeter circuit on the old piezo models. The tweeter circuit now has a series 10uF capacitor, and a shunt 16Ω resistor. So put the resistor directly across the tweeter leads, and put the capacitor inline on the "+" wire.
creator: Wayne Parham
date: 2013-01-11T18:08:45-00:00

Re: 2Pi Coil across woofer?
type: item
description: Excellent!
creator: Bill Epstein
date: 2013-01-11T18:35:21-00:00