Toa 280-ME-AV Instruction Manual

PROFESSIONAL SOUND SYSTEM

Speaker System

Model 280-ME-AV

GENERAL DESCRIPTION

The TOA 280-ME-AV is a 3-way reference monitor with

numerous applications in small and medium size recording

studios, A/V houses, and control rooms of broadcast

facilities. Due to the magnetically "shielded" components

used in the 280-ME-AV, the speaker enclosure may be

physically located adjacent to color televisions an video

monitors with no degradation in video quality. (Magnetic
fields emitted by unshielded systems may cause distortion
and break-up of the video image, when the speaker is placed

in close proximity to a video monitor.)

The 280-ME-AV is a sealed type enclosure, with a 7.9"(20cm)
polypropylene woofer, a 1.2"(3cm) soft dome tweeter, and a
polyester dome super tweeter, both with diffusers for ex-

cellent high frequency response. A tight, symmetrical compo-

nent arrangement ensures good image localization for close-

in monitoring, as well as smooth frequency response, low
distortion, wide dispersion, and superb transient response.
The 280-ME-AV will handle a maximum of 90 watts of con­tinuous program material. It features a high frequency
attenuator conveniently located on t he front panel, push-type
input terminals and a removeable front grille. The wooden
enclosure is finished in charcoal gray vinyl sheeting, and T­nuts are provided on the bottom and back plate for mounting
brackets.

FEATURES

1. Three-way system.

2. Smooth frequency response, low distortion, superb tran­sient response, and wide dispersion.

3. Magnetically "shielded" speaker components for in­terference free video monitoring.

4. 7.9"(20cm) polypropylene cone woofer.

5. 1.2"(3cm) soft dome tweeter and 0.79"(2cm) polyester
dome super tweeter, both with diffusers for excellent high

frequency response.

6. Symmetrical component arrangement enhances stereo

imaging.

.

7 Push-type input terminals.

8. Removeable front grille.

9. Convenient high frequency attenuator

10. Compact and rugged.

11. Easily mounted to the wall or ceiling with optional mount-

ing brackets.

Specifications

Enclosure:

Sealed type

Speakers:

Magnetically shielded type

Low Frequency, 7.9" (20cm) polypropylene cone woofer
High Frequency, 1.2" (3cm) soft dome tweeter
Super High Frequency, 0.79" (2cm) polyester dome

super tweeter

Power Handling capacity:

Continuous Pink Noise: 30 Watts RMS of band-limited pink

noise (50Hz-20kHz)

Continuous Program: 90 Watts

Impedance:

8 ohms

Sensitivity:

89 dB (1W/1m)

Attenuator

Frequency Response:

60Hz-20kHz

Crossover Frequency:

1.5kHz, 14kHz

High Frequency attenuator:

0dB to -10dB (tweeter only)

Input Terminal:

Push-type

Dimensions:

9.3"(W)X15.7"(H)X9.3"(D)

235(W) X 400(H) X 236(D) mm

Weight:

16.3

Ibs.

(7.4

Finish:

Charcoal gray

The attenuator adjusts the level of the tweeter only, while the
super tweeter level is fixed. The MAX position ensures flat
response.

HIGH FREQUENCY ATTENUATOR

kg)

Installation

1. The units are symmetrical. Position each unit so
that the super tweeter is put inward.

2. Using optional mounting bracket this speaker
system can be mounted to the wall or ceiling.

Wall Mounting Bracket: WCB-3
Ceiling Mounting Bracket: CMB-3

Characteristic Diagram (1W/ 1m:

Frequency Response

: Level control at MAX position

: Level control at MIN position

NOTE: Use two screws (M5x25mm) mounted on the

280-ME-AV to secure the bracket to the
enclosure, instead of the screws attached
with the bracket as they are too short.

1/3

Octave Pink Noise)

Directional Frequency Response

:::

Toa Electric Co., L td.

Printed in Japan

133-01-207-10