Planar Speaker Asylum

RE: 6dB/octave rules for MMGs

75.179.179.173

In Reply to: RE: 6dB/octave rules for MMGs posted by wazoo on October 26, 2009 at 11:02:02

I am all for 6 db slopes.

I am finalizing my mod Tympani PLLXO and the clarity vs. the Marchand 44 LR is significant if not startling.

Removing the speaker level coil I used for a contour circuit for the midrange and integrating it into the PLLXO, now that was startling.

I had everything setup with in phase (electric) crossovers for the Mid/Bass and combined acoustic and electric phase for Tweeter/mid.

I could not apply a first order on the woofer panels because of a rising midrange bump there, so I reverted to a Bessel second order LP in phase with the 1'st order bandpass on the mids.

The challenge turned out to be the matching the tweeter crossover and the preamp (tube) requirement for minimum load impedance while matching volumes with the other amps. Namely because of the lack of very low capacitance caps for my 5-6 khz crossover point (0.003 uF was the lowest I could find at the time), which lowered the required resistance.

Follow Ups:

Post a Followup:

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.