Toa HLS30S2-8, HLS30S2-16 Specifications

Instruction Manual

PROFESSIONAL SOUND SYSTEM

Low Frequency Loudspeaker Model HLS30S2-8, HLS30S2-16

APPEARANCE

GENERAL DESCRIPTION

The HLS30S2 is a 300 mm (12 in.) low-frequency loud­speaker designed for professional applications in high
level sound reinforcement environments where high
efficiency, low frequency range, and faithful reproduc­tion are required, such as studios, theaters, concert
halls, auditoriums, discos, and in live sound reinf o r ce ­ment applications. The HLS30S2 offers high po we r
handling capacity and a uniform frequency response
from 50 Hz to 4,000 Hz. A crossover frequency of 2,000 Hz
or lower is recommended to obtain smoothest overall
system response. The loudspeaker employs a low-mass
72 mm (2.8 in.) diameter voice coil of edgewound
copper-clad aluminum ri bbon on an aluminum coil form,
which operates in a flux density of 16 ,2 00 gauss. The
voice coil is driven by a powerful ferrite magnet, which
is supported by a rugged diecast aluminum frame. The
cone suspension is made of exceptionally high co mp li ­ance cloth surround, damped.

FEATURES

1. Smooth, extended low frequency response

2. High power handling capacity : 300 watts continuous
pink noise (AES Standard)

3. High efficiency and linearity

4. Low distortion

5. Voice coil of edgewound copper-clad aluminum
ribbon, with an aluminum coil form

6 . Powerful ferrite magnet structure

7. Rigid diecast aluminum construction

Specifications

SPECIFICATIONS

Nominal Diameter : 300 mm (12 in.)
Nominal Impedance

HLS30S2-8 : 8 ohms
HLS30S2-16 : 16 ohms

Power Handling1 : 300 W continuous pink noise

Sensitivity2 : 98 dB (1W/1m)

Frequency Range : 50 Hz to 4,000 Hz
Highest Recommended Crossover Frequency : 2,000 Hz
Effective Pis to n Diameter: 272 mm (107 in.)

Displacement Limit (p-p) : 20 mm (0.79 in.)
Minimum Impedance

HLS30S2-8 : 8.0 ohms ±10% (25°C)
HLS30S2-16 : 16.0 ohms ±10% (25°C)

Voice Coil Diameter: 72 mm (28 in.)
Voice Coil Material : Edgewound copper-clad alumi-

num ribbon

Voice Coil Winding Depth : 15 mm (0.59 in.)

Top-plate Thickness : 10 mm (0.39 in.)

Bl Factor

HLS30S2-8 : 19.5 N/A
HLS30S2-16 : 26.5 N/A

Effective Moving Mass : 0.055 kg

Flux Density : 16, 2 00 gauss

Polarity :

Positive voltage on plus (RED) terminal gives
forward diaphragm motion.

Note

1 . AES Standard (60 to 60 0 Hz)

2. Sensitivity is based on a band-limited (100 to 800 Hz)
pink noise signal.

3. Specifications are subject to change without notice.

THIELE-SMALL PARAMETERS

fs : 52 Hz

Re

HLS30S2-8 : 6.2 ohms
HLS30S2-16 : 12.3 ohms

Qts :

0.27

Qms : 2.9

Qes :

0.30

Vas : 80
Sd : 0.058 m2 (89.9 in2)
Xmax : 4.7 mm (0.19 in. )
Vd : 273 cm3 (16.7

Pe (Max) : 300 W continuous pink noise

lit.

(2.83

ft3)

(half space) : 3.7%

in3)

MOUNTING DATA

Overall Di ameter : 342 mm (13.5 in.)

Bolt Pattern Diameter : 322 mm (12.7 in.)

Baffle Cutout Diameter

Front Mount : 304 mm (12.0 in.)
Rear Mount : 290 mm (11.4 in.)

Depth : 143 mm (5.63 in.)

Loudspeaker Volume : 4 lit. (014 ft3)

Weight: 11 kg (24 .3 Ib.)

Standard Accessories

Mounting screws, washers and nuts : each 8

Instruction manual : 1

Warranty card : 1

Frequency Response

Frequency Response and Impedance Curve Distortion Res ponse

Measured in an anechoic environment at 1 watt
and 1 meter under the condition that speaker unit

is mounted in a 80-liter sealed box. The impedance

magnitude curve is measured in free-air.

Measured at 30 watts (-10 dB power), 1 meter.

TOA Corporation

KOBE, JAPAN

133-01-320-30