TAD TL-1601b

Commentary

Based on TL 1601 a, this 40 cm cone shaped woofer was developed to respond to professional use in the digital source age while keeping the basic performance as it is.

In addition to inheriting the features of TL-1601a, such as tough and lightweight cone, corrugation type cloth edge coated with special damping agent, and aluminum die-cast frame, a higher level of input resistant design has been introduced.
This design further pursued the design concept of maintaining high performance up to high input power. The maximum input power is increased to 500W by such methods as providing ventilation holes in the voice coil bobbin, forced air cooling through the opening holes in the frame and the center hole of the magnetic circuit.

The magnetic flux density of 12,400 gauss has been obtained by further upgrading the magnet material. The output sound pressure level of 97.5 db has been achieved by adding this high magnetic flux density magnetic circuit to the vibration indication system and long voice coil with good linearity.

The signal input path has also been improved. By installing a large vise type connector, it is possible to use a very thick speaker cable. In addition, a low-impedance OFC (oxygen-free copper) Kinshi wire is used to transmit input signals straight to the voice coil.

Compatibility is improved by making the external dimensions exactly the same as TL-1601a.

Model Rating

Type	40 cm Cone Woofer
Voice coil impedance	8 Ω
Lowest resonance frequency	28Hz
Playback frequency band	28 Hz to 1 kHz
Rated input	200W
Max Input	500W
Output sound pressure level	97.5dB/W/m
Equivalent Mass (infinite baffle)	117gr
Qo	0.31
Total flux	277,000maxwell
Magnetic flux density	12,400gauss
Baffle opening	352mm
Mounting Dimensions	370 mm (8-hole Type)
External dimensions	Diameter φ 400x Depth 167 mm
Weight	11kg
Attachment	8 mounting screws (M5x40) Flathead x8 Nut x8 Grain Nut x8 Sealed Packing (1/4) x4
Sold Separately	Repair Diaphragm Assay DP-1603 (¥ 34,000 (around 05), ¥ 24,000 (around 1999))