What makes the TD-4002 from TAD (Technical Audio Devices) so well suited for professional applications is its wide 600Hz to 20kHz frequency response and high 110dB/W output efficiency. There's more of course. The TD-4002 also features a pure beryllium diaphragm, an aluminum edge-wound voice coil, a 5-slit phase plug, a rear compression system which suppresses cavity resonance, and a lightweight neodymium magnetic circuit.
Dependability is ensured by the tremendous care and precision which goes into the manufacture of TAD products. The TD-4002 is assembled using only selected parts and materials under strictly controlled conditions. All products are tested by experienced engineers utilizing the latest in computerized evaluation techniques.
Whatever your audio needs, you can depend on TAD for unequaled performance and reliability.

Specifications

General	TD-4002
Voice Coil Diameter	101,0 mm
Mounting Dimensions	101 (4 Holes) mm
Weight	6,5 kg
Dimensions (diameter x depth)	178 x 161 mm
Nominal Impedance	16 Ohm
Frequency Range	600-20000 Hz
Rated Input Power	30 Watt
Maximum Input Power	60 Watt
Sound Pressure Level	110 dB/W (1m)
Total Magnetic Flux	246.000 Mx
Magnetic Flux Density	21.500 G
Highest Recommended Crossover	600 Hz
Phasing Plug	5-slit type
Hole Size for Throat Connection	50,8 mm