Joined: Mon Aug 25, 2008 12:59 am
Location: Great NorthWest.....Carver Country..
so what is it 4 or 8 ohms...
Impedance Nominal 4 ohms
Recommended Power: Up to 575 watts
per channel; 65 watts minimum, 8 ohm
It is currently Mon Aug 03, 2015 8:14 am
Carver Speaker Discussions and Questions
(pair of) SILVER-7 TUBE AMPs
Joined: Sun Jan 14, 2007 11:53 am
Location: TN Native Languishing in VA
OconeeOrange wrote:"Gary likes to play it 'loud' as do I. His system begs you turn it up until you die"
TNRabbit wrote:4 ohms total, nominal.
@ 3.8 ohm per ribbon direct; 4 ohms per woofer. (you can check with a multimeter)
I'm confused by the lower than 150 hz comment. Did you bypass the internal crossover or are you running speaker wire to the connectors on the back?? I think the buzzing you heard with only 200 wpc was the amp....but I'd have to hear them to tell you for sure. Where exactly in PA are you?
Something isn't right. That said, My Klipsch will absolutely blow the AL-IIIs out of the water, SPL-wise. I'm running 800 wpc from my Sunfire into EACH ribbon and EACH woofer. I can blow fuses if I push it, but it gives me the headroom I need to push some reference-level sound.
BillD wrote:Well, you have a pair of woofers, so 150Hz isn't a bad number. I have some 12" AR3a woofers that handle anything from 575Hz down when they are coupled with the midrange and tweeter. You really only need to go down to 80Hz if you want ONE woofer (i.e., a subwoofer). They say that that is the frequency where sound becomes omnidirectional.
Don't understand the issue you're having unless it just isn't enough power. I do like Rabbit does. 800 watts on each ribbon and on each woofer.
Reese wrote:Maybe those JBLs just thought they were in a low-rider boombox trunk arrangement and had to rattle something -- like the license plate on the rear bumper!
j/k -- I hope your problems are solved!
BillD wrote:So, you're running your Theater Grand as an active crossover. The only problem I see is that you may be missing 25Hz of upper bass unless you took the AL-III crossovers out. THe crossover point of AL-IIIs is 150Hz, so between 125Hz and there, you have only the rolloff going for you.
BillD wrote:I have the III, and mine can go past 150Hz. I'd up that crossover point to 150Hz to get the most out of your speaks (on small). That way, the ribbons will be getting 150Hz and up, and the woofs will be getting 150Hz down. That is a great idea for those with a Sunfire Theater Grand. You can use the adjustments on your real subs to block content above the desired frequency (say 80Hz) Gary â€” are you paying attention here? You don't need a Rane!
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