Toa HLS38UL2-8, HLS38UL2-16 Specifications

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 *

1

: 500 W continuous pink noise

Sensitivity *

2

: 98 dB (1 W/1 m)
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 : 21 .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 mm
Baffle Cutout Diameter

Front Mount : 354 mm
Rear Mount : 350 mm

Depth : 186 mm

Loudspeaker Volume : 6 lit.

Weight : 12 kg

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.)

Thiele-small Parameters

Fs : 40 Hz
Re

HLS38UL2-8 : 5 . 8
HLS38UL216

: 11.6

Qts :

0.26

Qms

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

2

Xmax : 7.7 mm
Vd : 660 cm

3

o(Half space) : 3.9%

Pe(Max) : 500 W continuous pink noise

Accessories

Screw/washer assembly and nuts

8 each

*1 AES Standard (60 to 600 Hz)

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

signal.

Note: The design and specifications are subject to

change without notice for improvement.

Distortion Response

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

capacity.)

TOA Corporation

Printed in Japan

133-01-397-3A

INSTRUCTION MANUAL

SAFETY PRECAUTIONS

Follow this instruction manual to obtain t he optimum

results before use.

We also recommend y ou keep this instruction manual
handy for future reference.

Note that this manual may include safety precautions not

applied to your products.

Symbols

Symbol of

caution actions

Symbol of

prohibited actions

WARNING

Indicates a potentially hazardou s situation which, if mishandled, could
result in death or serious personal injury.

Avoid installing o r mounting th e unit in unstable locations, such as on a rickety
table or a slanted surface. Doing so may result in the unit falling down and
causing personal inju ry and/or property damage.

Install the unit only in a location that can structurally support the weight of the
unit an d t he mounting b racket. Doing otherwise may result in the unit falling
down and causing personal injury and/or property damage.

CAUTION

Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.

Do not place heavy objects on the uni t as this may cause it to fall or break which
may result in personal injury and/or property damage. In addition, the object
itself may fall off and cause injury and/or damage.

Do not stand or sit on, nor hang down from the unit a s this may cause it to fall

down or drop, resulting in personal injury and/or property damage.

Do not operate the unit for an extended period of time with the sound distorting.

This is an indication of a malfunction, which in turn can cause heat to generate

and result in a fire.

Avoid placing the unit in a doorway or other high tra ffic area as people may trip

on the equipment and cords, or be injured by falling objects.

TOA Corporation

133-21-296-50

Install t h e unit only in stable locations, and make appropriate arrangements to

prevent it fro m falling down or rolling acr oss the floor. If it falls down or moves,

this may cause personal injury and/or property damage.
When unpacking or moving a heavy unit, be sure to handle the unit with two or

more persons. Falling or dropping the unit may cause personal injury and/or

property damag e .

Please see the reverse side for English manual.

HLS38UL2-8, HLS38UL216

Thiele-Small

TEL. [phone]

TEL [phone]

FAX. [phone]

* Please see the reverse side for English safety instructions.