I spoke to their stereo guy, there business has had a reduction in staff so some of the staff I first spoke to were less than helpfull. The gentlemen I spoke to was knowedgeable and was very helpfull. so it was more of an issue with the person answering the phones. He said the xmax was .49 inches so that works out to 12.446mm for the xmax. does that help? do you think I should go for a ported or sealed? I have two of these to use.
The AMP I will be powering these with will be a TOA IP450D the specs are below.
Product Type Power Amplifier
Power Requirements 115V, ±10 %, 50/60 Hz
Power Consumption 660 VA (Based on UL/CSA standards) 1800 VA (1650 W) (rated output 4Ω + 4Ω)
Stereo 450W + 450W (4Ω), 300W + 300W (8Ω)
Bridged 900W (8Ω) Screw Terminal (M4) Solderless terminal of 5.5-4 or 5.5 -5 usable or #10 AWG bare
Frequency Response 20Hz-20kHz (+0dB-0.5dB)
Total Harmonic Distortion 0.01% (8Ω, 1 kHz) 0.1% (8Ω, 20Hz- 20kHz)
Intermodulation Distortion 0.3% @ 8Ω (60Hz: 7kHz @ 4:1 ratio)
Voltage Gain 32 dB
Dynamic Range 110 dB @26dB gain, 105 dB @32dB gain (20Hz- 20kHz)
Cooling System Specifications
Forced air cooling under 104°F (40°C) Stop
104-167°F (40-75°C) Low to high speed (variable)
Over 167°F (75°C) High speed
Finish Panel: Zinc diecasting, black Case: Colored steel plate, black
Accessories 1 Power Cord, 2 Rubber Attenuator Covers
Weight 28.6 lbs (13 kg)
Dimensions 19" (482mm) W x 18 5/8" (473.5mm) D x 4" (102.4mm) H w/Feet or 3 3/8" (86.4mm) w/o Feet
My home theater amp is a Yamaha RX-V2092 it has a unbalanced audio output for the subs and the TOA amp has balanced inputs any ideas on the best way to hook it up. I have used it in the past but I would get a slight buzzing sound sometimes on the quiet parts of movies and it was annoying. I think someone told me there was a easy fix but I do not remember what it is.