Unfortunately S&V doesn't have that comparison available
	
		
			
				mike c said:
			
		
	
	
		
		
			thanks 3db
i was looking for that sub face off ... but the sound and vision mag website is pretty hard to navigate.
"i" so thats why i saw different specs, i WAS turned off from the one without an "i" (will check for an "i" hopefully its the cheap one)
that store has the subzero, subsonic 6 (i?) and the martin logan grotto ...
even a high end velodyne (that i wont even look at)
		
		
	 
I have that issue at home  but I can't get it online for some reason. I think the 6i will be consdireably more expensive than the 6 as its a newer design. I think the 6 is cheaper because they are trying to get rid of old stock .  
http://www.psbspeakers.com/product.php?pId=25&sId=5
Here's teh spec for the 6i ;
Frequency Range
	
On Axis @ 0° ±3dB 	29-150Hz
Lf Cutoff -10dB 	27Hz
Sound Pressure Level
	
Maximum @ 100Hz 	111 dB
Impedence 	
Nominal 	15 kOhm
Minimum 	1 kOhms
Amplifier Power 	 
Continuous 	225 Watts
Dynamic 	350 Watts
Dynamic Peak 	700 Watts
Design 	BASH, Class H
Discrete MOSFET
Acoustic Design 	
Woofer (Nominal) 	12" (300mm)
Charcoal Polypropylene Cone
Rubber Surround
2" (50mm) Voice-Coil
53 oz (1503g) Magnet
Crossover 	Variable 50-150Hz, LR4
Low Pass Filter
24dB/octave Linkwitz-Riley
Internal Volume Design Type 	2.38 cu ft (67.4 liter)
Bass Reflex
2 x 2 1/2" (63.5mm) Front Port
Radiussed Ex&Internally
Size (W x H x D) 	
Milimeters(mm) 	381 x 505 x508
Inches('') 	15 x 19 7/8 x 19 1/4"
Feet add 1" (25mm)
Net Weight 	
Kilograms(Kgs) 	18.6kg /each
Pounds(lbs) 	41lb /each
Shipping Weight 	 
Kilograms(Kgs) 	22.3kg /each
Pounds(lbs) 	49lb /each
Finish 	
	Black Ash Vinyl
Features 	
	Volume, Crossover (Front mount)
Bypass, Phase
On-Standby/Off
LL/LFE In&Outputs,
Active LL High Pass 80Hz, 12dB/Octave
High Level In & Outputs,
High Pass 100Hz, 6dB/Octave
RCAs & 5-way Binding Posts
Feet with Adjustable
Spikes & Rubber Levelers
Pricing 	
Price (US MSRP) 	$699.00 /each