Toa HNW-500, HNW-800 User Manual

PROFESSIONAL SOUND SYSTEM

DIVIDING

NETWORK

Model

HNW-500

HNW-800

FEATURES

1. The TOA HNW-500 and HNW-800 are designed for exclusive use with the standard speaker systems
for permanent installation.

The HNW-500 is intended for use with the standard speaker system (GS-3806W or GS-386W), and the

HNW-800 for use with the standard spea ker system (GS-382S, GS-302W and GS-302S) respectively.

2. System selection circuit is provided to obtain the optimum crossover characterisics in the standard
speaker systems.

3. High frequency level control allows ± 2 dB from normal level in the high frequency.

4. Horn equalizer is provided to correct roll-off in the high frequency of the conpression driver with the
constant directivity horn.

5. Slope rate is - 12 dB per octave in the low frequency and - 18 dB per octave in the high frequency of the
HNW-500, and - 12 dB per octave in the high frequency of the HNW-800.

6. Easy to mount the enclosure.

SPECIFICATIONS

Power Handling

Continuous Pink Noise

Load Impedance

Crossover Frequency

Slope Rate

High Frequency Level Control
Applicable Speaker System
Weight
Finish
Accessories

HNW-500

500 Hz

Low Frequency : - 12 dB/oct

Hi g h Frequency: - 18 dB/oct

HNW-800

800 Hz

Low Frequency : - 12 dB/oct

High Frequency : - 12 dB/oct

Three Steps (+2 dB, Normal, - 2 dB)

GS-3806W and GS-386W

1.7 kg

(3.75 Ib.)

GS-382S, GS-302W and GS-302S

1.6kg (3.53 Ib.)

Black paint

High frequency connecting cord x 1, Instruction manual x 1

Specifications are subject to change without not ic e .

HNW-500

System selection jumper

System selection terminal

Input terminal

High frequency level control jumper

High frequency level control terminal

High frequency output terminal:

Connects the solderless terminal of
the high frequency connecting cord.

Low frequency output cord

High frequency connecting cord
(supplied with unit)

Note : High frequency level control jumpers are factory-preset to + 2 dB.

MOUNTING UNIT TO THE ENCLOSURE

Mount the dividing network before mounting the woofers.

When using the HNW-800 in the standard speaker system

(GS-382S or GS-302S), cut off one paired low frequency

output cord close at the base.

Mounting procedure:

1) Loosen six screws and remove the rear terminal board of the
enclosure.

2) Insert unit into the port, and fix it with the removed screws.

Take care not to hold the connecting cord between the dividing

network and the enclosure.

Note: Take care so unit may not contact sound-absorbing

materials in the enclosure.

PART DESCRIPTION

FREQUENT RESPONSE

System selection : Install between terminal Nos.3 and 4
System selection : Jumper not installed

Frequency (Hz)

Frequency (Hz)

System selection : Install between terminal Nos.3 and 4
System selection : Jumper not installed

HNW-800

- 2 -

When connecting the dividing network to the woofers, use the low frequency output cor d of the dividing

network.

When connecting the dividing network to the compression driver, use the supplied high frequency

connecting cord.

Connect each polarity as shown below :

1) Low frequency : Red of the output cord to

2) H ig h frequency :

HNW-500

Black of the output cord to

HNW-800

Standard Speaker

System Model No.

GS-3806W
GS-386W

Output Terminal No.

1

2

Standard Speaker
System Model No.

GS-382S
GS-302W

GS-302S

Output Termin al No.

1

2

SYSTEM SELECTION

CONNECTION

Connect the system selection jumper according to the standard speaker system to be used as shown

below : The optimum crossover characterisics in each speaker system is obtainable.

HNW-500

HNW-800

Standard Speaker

System Model No.

Jumper Connection

GS-3806W

GS-386W

Standard Speaker

System Model No.

GS-382S

GS-302W

GS-302S

Jumper Connection

HIGH FREQUENCY LEVEL CONTROL

High frequency level can vary in conjunction with the jumpers for the high frequency level control as shown

below : Flat frequency response is obtainable when the high frequency level control is set to Normal.

Note : The Jumpers are factory-preset to +2 dB.

Select the appropriate level according to conditions at installation locations.

Jumper

Connection

High Frequency Level

+2 dB Normal - 2 dB

Consider standard values because dB value is changed according to the frequencies.

Whe n piling up the unused jumpers at the same terminal where installed the jumper to be used, they can

be utilized for future change of the speaker system or level change.

- 3 -

DIMENSIONS (mm)