| Panel Microphone
Input |
Input Type:
Electret
Input Impedance: >=2KΩ
Mic Limiter Threshold: 0dBu ±3dB
Mic Limiter Range (SB-704): >= 15dB |
| Headset Microphone Input |
Input Type: Dynamic
Input Impedance: >= 1KΩ
Mic Limiter Threshold: 0dBu ±3dB
Mic Limiter Range (SB-704): >= 15dB |
| Program Line
Input |
Maximum Level
before Clipping: >= 20dBu
Input Impedance: >= 5KΩ |
| Headset Output |
Load Impedance: >= 8Ω
Output Impedance: <= 25Ω
Output Limiter Threshold: +5dBu ± 3dB
Maximum Output Level before Distortion: >= 17dBu |
| Speaker
Output |
Load Impedance:
>= 4Ω
Max Output Level before 1% Distortion: 20dBu ± 2dBu |
| Party-line Output |
Off Noise: < -74dBu
Output Impedance: >10KΩ |
| Party-line
Input |
Crosstalk: <
-60dB
Max level before Clipping: >= 12dBu
Sidetone Null Capability: > 25dB |
| Stage Announce/Balanced Line Out |
Type: Balanced
Output Impedance: >= 200Ω
Load Impedance: >= 600Ω |
| IFB/Hot
Mic |
Type:
Unbalanced
Output Impedance: 150Ω
Load Impedance: >= 600Ω |
| Frequency Response |
Panel Mic - Party-line: 600 - 10KHz ± 3dB
Headset Mic - Party-line: 200 - 12KHz ± 3dB
Headset Mic - Line Out: 200 - 12KHz ± 3dB
Program Input - Party-line: 100 - 17KHz ± 3dB
Program Input - Headset Out: 200 - 10KHz ± 3dB
Program Input - Speaker Out: 300 - 10KHz ± 3dB
Party-line - Headset Out: 200 - 10KHz ± 3dB
Party-line - Speaker Out: 300 - 10KHz ± 3dB |
| Max
DistortionNoise |
Panel Mic -
Party-line: <= 0.5%
Headset Mic - Party-line: <= 0.5%
Headset Mic - Line Out: <= 0.5%
Program Input - Party-line: <= 0.2%
Program Input - Headset Out: <= 0.2%
Program Input - Speaker Out: <= 0.5%
Party-line - Headset Out: <= 0.2%
Party-line - Speaker Out: <= 0.5% |
| Noise |
Panel Mic - Party-line: < -65dBu
Headset Mic - Party-line: < -70dBu
Headset Mic - Line Out: < -55dBu
Program Input - Party-line: < -85dBu
Program Input - Headset Out: < -60dBu
Program Input - Speaker Out: < -60dBu
Party-line - Headset Out: < -50dBu
Party-line - Speaker Out: < -50dBu |
| Max
Gain |
Panel Mic -
Party-line: >= 37dB
Headset Mic - Party-line: 41dB ± 2dB
Headset Mic - Hot Mic Out: 55dB ± 3dB
Headset Mic - Announce Out: 55dB ± 3dB
Program Input - Party-line: >= -16dB
Program Input - Headset Out: >= 18dB
Program Input - Speaker Out: >= 24dB
Party-line - Headset Out: >= 34dB
Party-line - Speaker Out: >= 40dB |
| Min Gain |
Panel Mic - Party-line: <= 25dB |
| Mains
Power |
Input Voltage
Range: 100 - 240 VAC
Input Frequency Range: 50 - 60 Hz
Input Power: <= 60 VAC
Output Voltage: 30 VDC ± 0.5V
Output Current per Channel (Continuous): 1.2 A
Output Current per Channel (Peak): 2 A (Do not exceed the 1.2A
rating for more than 2 seconds per 1 minute period)
Short Circuit Recovery Time (1st short): <= 0.5 sec
Short Circuit Recovery Time >= 20 shorts in 20sec): <= 20
sec |
| Station Capacity |
Up to 40 RS-601 beltpacks or 10 speaker stations or 12
headset stations distributed over all channels |
| Rear Panel
Connectors |
Switched Intercom:
(10) XLR-3M (1 per channel)
Intercom: (4) XLR-3M (1 per channel)
Announce Out (1) XLR-3M (audio)
Program In: (1) XLR-3F
Hot Mic / IFB Interface: (1) 1/4 in. (0.64 cm) phone jack
External Speaker: (1) 1/4 in. (0.64 cm) phone jack
Accessory: (1) DB-15F
AC Power: IEC 320 connector |
| Rear Panel Controls |
(1) Power switch
(4) Intercom On/Off Switches |
| Front Panel
Connectors |
Panel Mic: (1) 1/4
in. (0.64 cm) panel mounting jack
Headset: (1) XLR-4M |
| Front Panel Controls & Indicators |
(1) Panel / headset mic switch
(1) Mic on button
(1) All talk button
(1) Announce button
(1) Party-line link button
(4) Program ON-OFF-INTERRUPT DIP switches
(1) Program level control
(4) Listen adjust controls
(4) Channel null adjust controls
(4) Channel program feed adjust controls
(4) Talk buttons
(4) Call buttons
(4) Listen buttons
(1) RMK button
(1) Speaker ON-OFF switch
(1) Speaker volume control
(4) Short LEDs
(1) Panel mic gain control
(1) Sidetone adjust control
(1) Headset audio limiter DIP switch
(3) Interrupt enable DIP switches
(4) Auto-call DIP switches
(4) Auto-talk/listen DIP switches
(4) Talk latch disable DIP switches
(4) Line length DIP switches
(10) Channel Assignment Slide switches |
| Environmental |
32 - 122˚F (0
- 50˚C) |
| Dimensions |
19 in. W x 3.5 in. H x 10.5 in. D
(483 mm x 88 mm x 267 mm) |
| Weight |
10.93 lbs. (4.97
kg) |
