Specs EP350
Enclosure: Bass Reflex
Max Amp Power: 300 Watts
Cross-over Adjust 40 - 150 Hz
Phase 0 & 180
Woofer Size 12"
DSP Controlled No
Line In and Out Yes
Balanced Line In and Out No
High Level In Yes
Room Trim No
Dynamic Power Supply No
Anechoic Resp. +/- 3dB 28 - 150 Hz
Room Resp. + 3dB/- 9dB 18 - 150 Hz

Max SPL Anechoic 107 dB
Max SPL In Room 118 dB
Dimensions HWD mm : 495 x 381 x 495
Dimensions HWD inches : 19.5 x 15 x 19.5
Weight lbs each: 76 lbs
Weight kg each: 34.4 kgs


VTF-3 MK3 At a Glance
Amp Power (RMS) 350 Watts
Bass Extension (max extension mode) 18 Hz
Bass Extension (max output mode) 25 Hz

Woofer Size 12 Inches
Crossover Bypassable 24 dB/Oct, continuously variable 30 - 90 Hz low pass
Ports Dual flared 4 Inch
Phase 0/180°
Inputs speaker level (2), line level (2)
Power Outlet Requirement 430 W, 120/240V
Ship Weight 90 Lbs
Dimensions 21.5”(h) X 17”(w) X 25”(d)
Warranty 7-years on the subwoofer, 2-years on electronics


The low frequency terminology?