Vizio HLS38UL2-8 User Manual

Low Frequency Loudspeaker

HLS38UL2-8, HLS38UL216

Please follow the instructions in this manual to obtain the optimum results from this unit.

We also recommend that you keep this manual handy for future reference.

APPEARANCE

unit : mm

7x15(8 places)
8 equally spaced at 45

FEATURES

High sound quality, high efficiency, high durability, and low distortion.
Magnetic circuit employing a large, 200 mm diameter ferrite magnet reproduces powerful low frequencies.

Ultra linearity in super low frequencies assures the cone displacement limit of 40 mm (peak-to-peak).
The bobbin and the voice coil are designed with emphasis on the heat radiation and mechanical strength, achieving high
power handling capacity (500 W).

Linear displacement characteristics thanks to high damping materials incorporated in the edge and resin-reinforced

cone.

TOA Corporation

SPECIFICATIONS

Specifications

Diameter: 380 mm

Rated Impedance

HLS38UL2-8 : 8
HLS38UL216 : 16

Power Handling Capacity *
Sensitivity *

2

: 98 dB (1 W/1 m)

1

: 500 W continuous pink noise

Frequency Range : 30 to 3,000 Hz
Highest Recommended Crossover Frequency : 1,000 Hz
Effective Piston Diameter : 330 mm

Displacement Limit (p-p) : 40 m m

Minimum Impedance

HLS38UL2-8 : 8.0 ±1 0 % (25 °C)

HLS38UL216 : 16.0 ±10% (25 °C)

Voice Coil Diameter : 72 mm
Voice Coil Material : Edgewound copper ribbon
Voice Coil Winding Depth : 25 mm

Top-plate Thickness : 10 mm

Bl Factor

HLS38UL2-8 : 2 1.1 N/A

HLS38UL216

: 27.3 N/A

Effective Moving Mass : 0.090 kg

Flux Density : 16,000 gauss

Polarity : Positive voltage on plus (RED) terminal generates

the positive sound pressure.
Front External Diameter : 407 mm
Diameter between mounting holes : 370 m m
Baffle Cutout Diameter

Front Mount : 354 mm
Rear Mount : 350 mm

Depth : 186 mm

Loudspeaker Volume : 6 lit.

Weight : 12 kg

Thiele-small Parameters

Fs : 40 Hz
Re

HLS38UL2-8 : 5 .8
HLS38UL216

Qts :

0.26

Qms

: 2.3
Qes : 0.29
Vas : 180 lit.
Sd : 0.086 m

Xmax : 7.7 mm
Vd : 660 cm

o(Half space) : 3.9%

Pe(Max) : 500 W continuous pin k noise

Accessories

Screw/washer assembly and nuts

*1 AES Standard (60 to 600 Hz)

*2 Based on a band-limited (100 to 800 Hz) pink noise

signal.

Note: The design and specifications are subject to

change without notice for improvement.

: 11.6

2

3

8 each

FREQUENCY RESPONSE

Frequency Response and Impedance Curve

Measuring Condition

Measuring environment: Anechoic chamber
Measurement distance: 1 m on the forward axis
Input signal: 1 W sine wave
Enclosure: 120-liter sealed box. (The impedance

curve has been obtained by measuring

the naked speaker.)

Distortion Response

Input signal: Sine wave of 50 W (1/10 of power handling

capacity.)

TOA Corporation

Printed in Japan

133-01-397-3A