Toa HLS30S2-8/16, HLS30S2-8, HLS30S2-16 Specification Sheet

TOA SPEAKER COMPONENT

LOW-FREQUENCY LOUDSPEAKER

HLS30S2-8/16

DESCRIPTION

The HLS30S2 is a 300mm (12 in.) low-frequency loud­speaker designed for professional applications in high

level sound reinforcement environments such as studios,
theaters, concert halls, auditoriums, discos and live
sound reinforcement applications, where high efficiency,

low-frequency response, and faithful reproduction are
required. The HLS30S2 offers high power handling
capacity and a uniform frequency response from 50Hz to
4,000Hz. A crossover frequency of 2,000Hz or lower is
recommended to obtain smoothest overall system
response. Nominal impedance is 8 ohms for the
HLS30S2-8, and 16 ohms for the HLS30S2-16. The loud­speaker employs a low-mass 72mm (2.8 in.) diameter
voice coil of edgewound copper-clad aluminum ribbon on
an aluminum coil form, which operates in a flux density of

16,200 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-compliance, damped-cloth surround.

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 ribbon, with an
aluminum coil form.

6. Powerful ferrite magnet structure.

7. Rigid diecast aluminum construction.

SPECIFICATIONS

Nominal Diameter
Nominal Impedance

Minimum Impedance

above Fs
Power Handling Capacity*
Sensitivity*

2

Frequency Range
Highest Recommended

Crossover Frequency
Effective Piston Diameter
Displacement Limit (p-p)
Voice Coil Diameter
Voice Coil Material
Voice Coil Insulation
Voice Coil Winding Depth
Top-Plate Thickness
BI Factor

Effective Moving Mass
Flux Density
Polarity

1

300mm (12 in.)
HLS30S2-8: 8 ohms

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

HLS30S2-16: 16.0 ohms +10% (25°C)
300 watts continuous pink noise (AES standard)

98dB SPL (1W/1m)
50Hz to 4,000Hz
2,000Hz

272mm (10.7 in.)
20mm (0.79 in.)
72mm (2.8 in.)
Edgewound copper-clad aluminum ribbon
Aluminum

15mm (0.59 in.)

10mm (0.39 in.)
HLS30S2-8: 19.5 N/A

HLS30S2-16: 26.5 N/A

0.055kg

16,200 gauss
Positive voltage on plus (RED) terminal gives

forward diaphragm motion.

THIELE-SMALL PARAMETERS

fs
Re

Qts
Qms

52H.z
HLS30S2-8: 6.2 ohms

HLS30S2-16: 12.3 ohms

0.27

2.9
Qes 0.30
Vas
Sd
Xmax
Vd

ηο

(half space)

Pe (Max)

80 lit. (2.83 ft3)

0.058m2 (89.9 in2)

4.7mm (0.19 in.)

3

(16.7 in3)

273cm

3.7%

300 watts continuous pink noise

MOUNTING DATA

Overall Diameter
Bolt Pattern Diameter
Baffle Cutout Diameter

Depth
Loudspeaker Volume
Weight
Standard Accessories

Notes

1

1. *

AES Standard is 60Hz to 600Hz continuous pink noise, at -12dB/Octave cut-off, and with a

6dB crest factor, measured for 2 hours, with the unit suspended in free air.

2. **Sensitivity is based on aband-limited (100 to 800Hz)

3. Specifications are subjectto change without notice.

342mm (13.5 in.)
322mm (12.7 in.)
Front Mount: 304mm (12.0 in.)

Rear Mount: 290mm (11.4 in.)
143mm (5.63 in.)
4 lit. (0.14 ft

3

)
11 kg (24.3 Ibs.)
Mounting screws, washers and nuts: each 8

pink noise signal

APPEARANCE AND DIMENSIONAL DIAGRAM

8-6mm(0.24")
8 equally spaced at 45°

ARCHITECT’S AND ENGINEER’S SPECIFICATIONS

The low-frequency loudspeaker shall be TOA Model HLS30S2-8/16 or
approved equivalents. The loudspeaker shall have 300mm (12 in.)
nominal diameter, with a bolt pattern diameter of 322mm (12.7 in.), a
weight of 11 kg (24.3 Ibs.), and a depth of 143mm (5.63 in.). The
loudspeaker shall have a rigid diecast aluminum frame that shall permit
front or rear mounting. The loudspeaker shall have a 300W AES
Standard power-handling capacity and a uniform frequency response
from 50Hz to 4,000Hz, with a recommended crossover frequency of
2,000Hz or lower to obtain smoothest overall system response. Band­limited (100 to 800Hz) pink noise sensitivity shall be 98dB (1W/1m).
Nominal impedance shall be 8/16 ohms. The loudspeaker shall employ a
low-mass 72mm (2.8 in.) diameter voice coil of edgewound copper-clad
aluminum ribbon of 15mm (0.59 in.) winding depth, on an aluminum coil
form, operating in a flux density of 16,200 gauss. The voice coil shall be
driven by a powerful ferrite magnet. Effective moving mass shall be

0.055kg. The cone suspension shall be made of exceptionally high­compliance, damped-cloth surround.

CHARACTERISTIC DIAGRAMS

*Frequency Response and Impedance Curve

Frequency response
& 1 meter conditions, with a swept sine wave signal, while the speaker unit
mounted in an 80-liter sealed box The impedanced magnitude curve is measured
while the speaker is suspended in free air, with its cone in the vertical plane

*Distortion Response

response is measured with a swept sine wave signal, at 30 watts (-10dB

Distortion
power) & 1 meter, and while the speaker unit

FREQUENCY (Hz)

is

measured in a spherical free-field environment, under 1 watt

FREQUENCY (Hz)

is

mounted in an 80-liter sealed box.

is

TOA Corporation

Printed in Japan 833-64-823-90