Bogen CAM8PRO User Manual

• 8 independently assignable inputs

• Dual-bus design with Main/Aux output selector
for each input

• Pluggable terminal strip connections

• Separate Auxiliary input

• Balanced inputs and outputs

• Direct bus connection for cascading multiple mixers

• MIC/Line switch for each input and Main output

• Gain/Trim Control for each input

• Low-Cut Filter for each input

• Switchable Phantom Power for condenser MIC inputs

• Input Level Control knob for each input

• Output Level Control knob for Main and Aux outputs

• Sealed potentiometers for low noise, long life

• Heavy-duty construction

• External power supply

• Single-rack space

• Compressor/Limiter (Main output)

• Compressor/Limiter Bypass switch

• Adjustable Threshold and Ratio Controls

• LED Bar Graph Output Meter (Peak or Average)

• Headphone Output

The Bogen CAM8 and CAM8PRO are 8-input, dual-bus MIC/Line mixers that combine superb performance with
a generous array of simple-to-use features in a single-rack space design. Both models feature 8 independently
assignable inputs switchable between MIC and Line. Each input has a trim control, a switchable low-cut filter, and
a Main/Auxiliary bus output selector. An additional Auxiliary input can be routed to the Main output,Aux output,
or both by setting internal jumpers. Phantom Power is provided for condenser microphones.

The CAM8PRO also features a built-in Compressor/Limiter with adjustable Threshold and Ratio Controls. A Bar
Graph Output Meter indicates input signal levels.The CAM8PRO also includes a headphone output. Solidly engi­neered, the Bogen CAM8 and CAM8PRO mixers will provide many years of trouble-free operation.

CAM8 & CAM8PRO Features CAM8PRO Added Features

Description

Specifications subject to change without notice.
© 2000 Bogen Communications, Inc.
Part No. 54-8007-01R1 Printed in U.S.A. 0008

MIC/Line Mixers

Models CAM8
and CAM8PRO

Technical Specifications

50 Spring Street, P.O. Box 575,Ramsey, New Jersey 07446
Tel. [phone], Fax: [phone], Web Site:www.bogen.com

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-G++++G----

++++---

-G++++----G

++++----

G++++----G

++++----

G++++----G

--G--+++

+++++----G

+-+-+-

+-G

Power

Ratio

0 100

AUX

0 +3 +12+6

+20

-20

MAIN

-12-18 -6 -3

Threshold

On

8

Cut

Low

Off

-

+

M.A
BUS

Low
Cut

7

Limit

Headphone

12

Trim

Mic

Line

34

Mic

Line

TrimTrim

Mic

Line

5

Trim

Mic

Line

6

Mic

Line

Trim

-

+

-

+

Low
Cut

6

BUS

M.A

-

+

5

M.A
BUSCut

Low

Cut

Low

+

-

4

M.A
BUS

Low
Cut

3

-

+

Low
Cut BUS

M.A

2

-

+

-

+

Cut

Low

1

M.A
BUS

BUS

M.A

7

Trim

Mic

Line

8

Trim

Mic

Line

MAIN

0dB

-50dB

Off

On

AUX OUT AUX IN

AC

Power

Ground

Phantom

18VCT

Mic

Line

Trim

BUS

M.A

Signal-to-Noise

Mic Pre-amp EIN

Max.Voltage Gain
Frequency Response
Crosstalk (adjac. ch.)
Phantom Power

INPUTS 1-8

Input Impedance

Nom. Source Impedance
Line Pad
Input Gain/Trim Range
Nominal Input Level
(trim pot mid-range)

Minimum Input Level
(trim pot max gain)

Maximum Input Level
(trim pot min gain
plus +20dB headroom)

Ref +26dBu @ 54dB
sys gain = 90dB

-129dB @ 150-ohms,
20Hz to 20kHz
96dB
±1dB from 20Hz to 20kHz
better than -90dB
+15V DC

3.5k-ohm MIC

15k-ohm Line
150 ohms

-50dB
40dB

-50dBu line pad off
0dBu line pad on

-70dBu line pad off

-20dBu line pad on

-30dBu line pad off
+20dBu line pad on

AUXILIARY INPUT

Input Impedance
Nominal Input Level

OUTPUTS

Output Impedance

Nom. Load Impedance
Nominal Level
Maximum Level
Main Output Mic Pad

AUXILIARY CIRCUITS

LED Bar Graph

Limiter/Compressor:

Threshold Adj. Range

Ratio Adj. Range

Low Cut Filter

Power Requirements

Dimensions

Weight

20k-ohm balanced
0 dBm

220-ohm unbalanced,
440-ohm balanced
≥600 ohms
+4dBu RMS
+26dBu RMS Balanced

-50dB

-18, -12, -6, -3, 0, +3, +6, +12VU
(0VU = +4dB)
Average or Peak reading
Peak reading per DIN spec. 45406
(1.7 ms attack, 65 ms decay)

+20dB to -20dB
0 to 100%

12dB/octave at 150Hz
18V AC center-tapped,
21V AC/120V AC, 60Hz
19" W x 1-3/4" H x 6" D

(48.2 cm x 4.4 cm x 15.2 cm)
Shipping: 10 lbs.; Product: 7 lbs.

Available on CAM8PRO only

Architects
& Engineers
Specifications

The unit shall be a Bogen Model _____________ (specify
CAM8 or CAM8PRO). Frequency response shall be 20Hz
to 20kHz, ±1dB. Power requirements shall be 18V AC
center-tapped, 21V AC/120V AC at 60Hz. The unit shall
utilize an external power supply.

The unit shall measure 19" W x 1-3/4" H x 6" D, weigh
7 pounds, and be rack-mounted in a standard rack or
placed on a flat surface.

The unit shall have 8 inputs, each with Main/Aux output
selector, Gain/Trim Control, Input Level Control knob,
Low-Cut Filter, and MIC/Line switch.

The unit shall have balanced inputs and outputs with an
Output Level Control knob for Main and Aux outputs.

The unit shall have an additional Auxiliary output.
The MIC inputs shall have switchable Phantom Power

(+15V DC) for condenser microphones.
The unit shall be of heavy-duty construction with sealed

potentiometers and pluggable terminal strip connections.
The CAM8PRO shall include a Compressor/Limiter with

adjustable Threshold and Ratio Controls, an LED Bar
Graph Output Meter, and a Bypass switch. It will also
include a Headphone Output.