The 4pi is definitely on my radar, and I could still experiment with an active/DSP crossover. Good to know that the parts are still available.
All these horns have narrow verticals which are also smaller in height than the woofer. It's hard to say how well they'll cross.
recently i've read something opposite... that pro drivers are designed to work good at high levels,handle lots of power and have stiff suspensions therefore they dont come alive untill significiant power is delivered to them... so what is the ultimate consensus on this ?
There will never be such a thing in audio! 😊
I see generalizations here. How a loudspeaker performs at low volumes where FletcherMunsen really sticks itself into the mess, is down to design. execution, and what amplifier you are using.
dave
dave
FWIW, it's been my experience that the old (say 1930's-1950's) drivers rated (say) 30W and under (as opposed to drivers that must survive kilowatts) "come alive" w/o needing a bunch of juice.
Yes, a speaker should not need loudness compensation and to show this, it should sound balanced and consistent during a song's fade out.
To be fair, you all did an excellent job of trying to talk me out of it:
Found a pair of 2380a horns with 2445J drivers at a price I couldn't pass up. I did some rough measurements in REW and got things sounding acceptable. Still need to take proper measurements and iron a few things out, but the results so far are promising.
Found a pair of 2380a horns with 2445J drivers at a price I couldn't pass up. I did some rough measurements in REW and got things sounding acceptable. Still need to take proper measurements and iron a few things out, but the results so far are promising.
I have the HF140 on LTH142 and that combo is about as smooth and low distortion as it gets and goes fairly low 700hz but for my room I like a 90 degree horn.
This is a 2440 driver with 2441 diaphragm on a 2380A, I made this measurement about six years ago. No EQ, no crossover - measurement range of 400Hz - 8kHz (No further details)
For EQ in those days I depressed the region between 1 - 3 kHz with a low Q notch filter, and used a mild HF shelf or nothing above 5kHz. Resist the temptation to over EQ. 😀
This set up is long gone, replaced with TAD TD-4001 on Yuichi A-290 clone.
Some room treatment recommended even with the 2380A, check out absorber/diffusers from acoustimac. Frame them and WAF might be acceptable.
I use DSP for everything. (XO, delays, and EQ)
For EQ in those days I depressed the region between 1 - 3 kHz with a low Q notch filter, and used a mild HF shelf or nothing above 5kHz. Resist the temptation to over EQ. 😀
This set up is long gone, replaced with TAD TD-4001 on Yuichi A-290 clone.
Some room treatment recommended even with the 2380A, check out absorber/diffusers from acoustimac. Frame them and WAF might be acceptable.
I use DSP for everything. (XO, delays, and EQ)