Azden IRD-60 Zusätzliches Handbuch

By placing 4 ceiling-mounted (or wall-mounted) speakers evenly
spaced throughout the room, each student can hear quality audio
equally – wherever seated. Distributed sound (or soundfield) assures
that there isn’t a bad seat in the room.

®

HOW IT WORKS

SPECIFICATIONS

IRR-30P 2-channel receiver w/power amplifier
Sub-carrier frequencies

2.06MHz & 2.56MHz

Type

Super heterodyne – crystal controlled

Modulation

FM

Signal-to-Noise

>75dB A weighted

Reception sensitivity

>25dBÌV

Line Input impedance

32k ohms ±15%

Line Output adjustment

–∞ ~ +10dBu

Audio Output

5W x 4 @ 4 ohms

Power requirement

15VDC @ 2.7A (use model BC-30)

Size

8.03" W x 9.19" D x 1.73" H (204 x 233 x 44mm)

Weight

2.86lb (1.3kg)

IRH-15C 2-channel handheld transmitter
Sub-carrier frequencies

2.06MHz & 2.56MHz switchable

Modulation

FM

Microphone element type

Uni-directional dynamic

Frequency Response

50-8kHz ±3dB

Battery type

2-“AA” alkaline( 1.5V x 2 )
2-“AA” rechargeable NiMH (1.2V x 2 )

Battery life

> 6 hours w/alkaline batteries

Size

9.65" x ~1.375" (245 x ~35mm)

Weight

9.1oz (258g) w/alkaline batteries)

IRN-10 2-channel chest-worn transmitter
Sub-carrier frequencies

2.06MHz & 2.56MHz switchable

Modulation

FM

Microphone element type

Uni-directional electret x 2

Frequency response

50-9kHz ±3dB

Ext. Mic input impedance

2.2k ohms

Ext. Mic input jack

Ø 3.5mm

Ext. Mic Voltage/Current

3.5VDC @ 1mA (to power electret mic element)

Mic gain adjustment

+6dB ~ –10dB

Battery type

2-"AA" alkaline (1.5V x 2) 
2-"AA" rechargeable NiMH (1.2V x 2)

Battery life

> 8 hours w/alkaline batteries

Size

3.15" H x 2.75" W x 1.06" D (80 x 70 x 27mm)

Weight

4.3oz (120g) w/alkaline batteries

IRD-60 Dome sensor
Output

F Connector

Power

powered by receiver (24V @ 15mA)

Cable requirement

RG59 - 75 ohm coaxial

Size

3.94" x 1.18" (100 x 30mm)

Weight

6.00oz (170g) w/mounting bracket