westend wrote:I bet those do image well and I'm gonna lay it off to the excellent crossover and the JBL tweeter. You can't discount the older woofers, either. There are a lot of sleepers out there. I've got the parts for new crossovers for the Advents. Maybe I'll whack them together, tonight. The tube thing is cool. I'm hearing info in the mid range that wasn't there before, lol.
Heh.....wait until you hear a good single-ended triode amp. Although that little 6BQ5 PP integrated is probably rather close sounding with a little more power.
A audio buddie and I went in on some of these cheap-assed little 2-way crossover networks:http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5780366350&rd=1&sspagename=STRK%3AMEWA%3AIT&rd=1
The center frequency is 3 kHz from what the seller claims. I'm using them now. The high pass section didn't seem too special, making the JBL 075's sound a little dull. The low pass section seems to work pretty good with the woofers.
I'm now just using the low pass section of the cheap passive network, and the 075's capped off with the GE 4 uF oil cap, padded with a .47 ohm resistor.
Seems to sound pretty good that way, using a old Mitsubishi DA-R15 receiver.
Today, the same audio friend and I were comparing the Lafayette/Criterion 10" in a 4 foot cabinet on one side, with a JBL 2235 15" in a 4 foot cabinet on the other side. Both woofers were vent tuned to around 35, 40 Hz.
He was using a pair of Selenium D405's with some sort of CD horns for midrange for each side, and either a JBL 075 type of bullet tweeter, or a Selenium (300?) slot tweeter.
A vintage Mitsubishi dual-mono pre and power amp was used.
The D405 driver is huge, really huge.....80 watts RMS or something like that.
Excellent horn midrange once padded down, they dig down deep.http://www.partsexpress.com/pdf/264-244.pdf
The JBL 2235 had a little more punch, with the deeper bass more noticed. And a little more richer bass than the Lafayette Criterion. And of course can handle gobs more power.
But the JBL was just a little more boomy, proper cabinet tuning may help that however.
Considering the fact the cheap japanese driver is a 10", it could do 75% to 80% of what the JBL does.(In a vented 4 foot cabinet) And the JBL 2235 is not a cheap driver, they are a expensive industrial woofer.
I've watched this guy go through many many singles and pairs of woofer drivers, some rather cheap, some rather spendy indeed. (Fostex, JBL, etc..)
And the cheap Lafayette Criterion 10" always get compared to the others, and they always hold their own within their limits.
You never know......me and this guy like these woofers, but other folks may think they suck. Different tastes, etc.....