Audio Database

Image of TD-2002
Commentary

Compression driver also used in Exclusive model2251.

The diaphragm uses a 4.8 cm beryllium diaphragm, which is formed by a special vacuum deposition technique and is lightweight and highly rigid. This diaphragm drives the wide resonance frequency out of the audible band, resulting in flatter characteristics, superior resolution and transient characteristics.

With an Alnico magnet and an internal magnetic circuit precisely assembled with pure iron poles, top plates, and ductile iron yokes, excellent linearity and wide-band reproduction are achieved.

The phasing plug, which prevents phase disturbance of sound waves, uses an annular slit type that facilitates phase matching in an ultra-wide range, improving the regenerative capacity in the high-frequency range.

We have also reviewed the power supply section and adopted a structure in which a lead wire can be directly connected to the diaphragm assembly from outside to reduce the influence of internal AC magnetic flux and sound pressure.

Model Rating
Type Driver unit
Voice coil impedance 8 Ω
Voice coil diameter 48mm
Phasing plug 3 Double Slit Rear Type
Playback frequency band 800 Hz to 22 kHz
Max Input 40W (800 Hz, -12dB/oct.)
Output sound pressure level 111dB/W/m (with 60 ゜ x30 ゜ horn)
Crossover frequency 800 Hz or More (Cutoff Characteristic 12dB/oct. or More)
Total flux 74,200maxwell
Magnetic flux density 19,500gauss
Throat connection hole diameter 25.4mm
Mounting Dimensions 57.2 mm (3-Hole Type)
76.2 mm (4-Hole Type)
External dimensions Diameter φ 141x Depth 137 mm
Weight 6.9kg
Attachment Mounting Screws (Hex Bolt M6x20) x4
Washer x4
Sold Separately Repair Diaphragm Assay SXV1005
(¥ 65,000 (around 05), ¥ 45,000 (around 1999))