TH312 is a dual 12",big power, high sensitivity, high SPL, long-throw
speaker. Mid-bass and HF driver all feature horn-loaded design. Unit
configuration: 2x12" high efficiency neodymium mid-bass units, 1x1.4"
exit throat 75mm voice coil neodymium HF driver. The cabinet is made of
multilayer composite plywood with wear-resistant polyurea paint. TH312A is
equipped with two channels digital amplifier with DSP based on TH312 to be an
active speaker. MODEL TH312 TH312A FREQUENCY
RESPONSE(-3dB) 65Hz-18kHz 65Hz-18kHz FREQUENCY
RESPONSE(-10dB) 60Hz-20kHz 60Hz-20kHz DRIVERS 2×12"(300mm)/3"voice
coil LF     2×12"(300mm)/3"voice coil
LF       1×1.4"(36mm)/3"voice
coil 
HF                               1×1.4"(36mm)/3"voice
coil 
HF                               RATED
POWER 600W RMS,2400W
peak 300W/8Ω+1200W/4Ω SENSITIVITY 103dB
1watt/1meter -- MAXIMUM SPL 131dB continuous,137dB peak 131dB
continuous,137dB peak IMPEDANCE 4 ohms
nominal -- DISPERSION(-6dB) 60°×40° 60°×40° CROSSOVER
FREQUENCIES 1.3kHz passive  -- INPUT
CONNECTORS 2×Speakon NL4 INPUT TYPE: Balanced Differential
line PACKAGE
SIZE 530mm×530mm×795mm 530mm×530mm×795mm NET
WEIGHT 32 kg/pc 35 kg/pc GROSS WEIGHT 37 kg/pc 40 kg/pc