TOA MT-S0301 Manual

TOA Højttaler MT-S0301

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INSTALLATION MANUAL

MATCHING TRANSFORMER

MT-S0301

Thank you for purchasing TOA Matching Transformer.

Please carefully follow the instructions in this manual to ensure

long, trouble-free use of your equipment.

1. SAFETY PRECAUTIONS

•Before installation or use, be sure to carefully read all the

instructions in this section for correct and safe operation.

•Be sure to follow all the precautionary instructions in this section,

which contain important warnings and/or cautions regarding

safety.

•After reading, keep this manual handy for future reference.

Note: The design and specifications are subject to change without

notice for improvement.

4. DIMENSIONAL DIAGRAM

Indicates a potentially hazardous situation which, if mishandled,

could result in moderate or minor personal injury, and/or property

damage.

CAUTION

•Install the unit in the specified speaker, as doing otherwise may

cause the matching transformer or the speaker to heat, resulting

in a fire.

•Leave the installation of the unit to your TOA dealer because the

installation requires expert experience and skills. Incorrect wiring

may cause the equipment to heat, resulting in fire.

•Avoid connecting to a 170 Ωtap when using the speaker on high

impedance 100 V line. Otherwise, heat builds up in the matching

transformer, possibly causing a fire.

Rated Input 30 W

Primary Terminal High impedance 100 V Line:

330 (10 W) Ω(30 W), 1 kΩ

High impedance 70 V Line:

170 Ω(30 W), 330 Ω(15 W),

1 kΩ(5 W)

Secondary Terminal 8 Ω

Dimensions 75 (w) x 36 (h) x 53 (d) mm

(2.95" x 1.42" x 2.09")

Weight 370 g (13.05 oz)

133-02-00126-00

• Accessory

Impedance indication label sheet

...................... 1

2. GENERAL DESCRIPTION

The MT-S0301 Matching Transformer (rated input: 30 W) is

designed to be installed in the speaker and used to convert the

low-impedance speaker into the high-impedance version.

3. SPECIFICATIONS

Step 3. Step 5.Connect a lead wire to the desired impedance tap. Replace the blank panel with the matching transformer

fixed in the speaker.

Note

Take care not to pinch the lead wire between the blank

panel and speaker body when replacing the panel.

150 (6)

66 (2.6)

4-3.5 x 5

(4-0.14 x 0.2)

150 (6)

44 (1.73)

53 (2.09)

Max. 36 (1.42)

75 (2.95)

Unit: mm (inches)

5. MOUNTING PROCEDURES

Step 1. Remove 4 screws holding the blank panel to the speaker

and detach the panel.

Blank panel

Machine screw

(M4)

Speaker

(rear)

Step 2. Mount the matching transformer to the back side of the

blank panel with the machine screws and nuts attached

to the blank panel.

MT-S0301

Blank panel

Machine screw

M3 x 10

Nut (for M3)

Never connect to a 170 Ωtap when using the speaker

on high impedance 100 V line. Otherwise, heat builds

up in the matching transformer, possibly causing a fire.

CAUTION

Connector (primary)

Connector (secondary: 8 Ω)

Black

Red

MT-S0301

Notes

•

The lead wire is connected to 330 Ωtap at the factory.

•Make wiring to the tap before installing the

transformer into the speaker.

Note that the tap cannot be changed from the outside

once the transformer has been installed.

The following table shows usable impedance.

High impedance

100 V line

Primary

impedance

High impedance

70 V line

Unusable170 Ω 30 W

30 W330 Ω 15 W

10 W1 k Ω 5 W

Step 4. Disconnect the lead wire connectors and connect them

to the matching transformer.

4-1. Pull the lead wire out of the speaker and disconnect the

interlocked connectors.

Speaker

Disconnect the connectors.

4-2. Connect the removed connectors to the connectors

from the transformer.

MT-S0301

Blank panel

Speaker

Step 6. Attach the impedance indication label to the given place

in the speaker nameplate.

Select the indication label corresponding to the

impedance set in step 3 from 3 different labels.

Machine screw

(M4)

Blank panel

Speaker

(rear)

Nameplate of the speaker

Impedance indication label sheet

(accessory)

Note

The above figure shows an example for attaching the

indication label of 330 Ω.

URL: http://www.toa.jp/

Produkt Specifikationer

Mærke:	TOA
Kategori:	Højttaler
Model:	MT-S0301

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