Cooper Sound CS 208 V2 Operator's Manual

CS 208 V2 PROFESSIONAL AUDIO MIXER

OPERATOR’S MANUAL

645 Main Street, Suite C ■ Morro Bay, California ■ [phone] ■ Fax [phone]

www.coopersound.com

CS 208 v2

Cooper Sound Systems, Inc.

TABLE OF CONTENTS

INPUT CHANNEL DESCRIPTION.............................................................................1, 2

OUTPUT MODULE DESCRIPTION ..........................................................................3, 4

REAR PANEL DESCRIPTION .......................................................................................5

PIN OUTPUTS ...............................................................................................................6

STEREO MODULE (OPTIONAL) ..............................................................................7, 8

SPECIFICATIONS

GENERAL ......................................................................................................................9

INPUTS ........................................................................................................................10

OUTPUTS.....................................................................................................................11

BLOCK DIAGRAM - INPUT & POWER WIRING.........................................................12

BLOCK DIAGRAM - OUTPUT .....................................................................................13

EQ CHARTS ................................................................................................................14

LAYOUT - A,B,C...........................................................................................................15

LAYOUT - D,E,F...........................................................................................................16

LAYOUT - G,G PPM, H, MB ........................................................................................17

CSST BLOCK DIAGRAM & LAYOUTS........................................................................18

BASIC SET UP & METERING...............................................................................19, 20

OPERATION & APPLICATION NOTES ...................................................21,22,23,24,25

APPLICATION NOTES

AN 1 v2 ROLLS............................................................................................................26

AN 2A INPUT CHANNEL OPTIONS............................................................................27

AN 2B v2 INPUT CHANNEL OPTIONS.......................................................................28

AN 2C v2 INPUT CHANNEL OPTIONS.......................................................................29

AN 2D v2 INPUT CHANNEL OPTIONS.......................................................................30

AN 2E v2 INPUT CHANNEL OPTIONS.......................................................................31

AN 3 v2 COMMUNICATIONS IN .................................................................................32

CABLE WIRING ...........................................................................................................33

GENERAL NOTES.......................................................................................................34

ADC OPTION - INSTRUCTIONS.................................................................................35

ADC OPTION - SPECIFICATIONS ..............................................................................36

WARRANTY.................................................................................................................37

MODEL CS 208 v2

Left Section

1. CH: Channel Power (down = on) Do not switch during recording.

2. PH/DYN/T: Phantom power, no mic power, T (AB) power

(Phantom power is normally 48 v, see layout A to change to 12 v).

3. ø: Phase (audio only). ø = normal phase, REV = reverse phase

4. Mic/Line: Microphone or line level in.

5. Pad: Attenuator to reduce either mic or line input levels.

6. HP 1: High pass filter, pre-transformer.

7. HP 2: High pass filter, post transformer & preAmps.

8. EQ: Equalizer bypass. Affects HF, MF & LF filters, not HP filters.

9-12. A,B,C,D: Channel to mix bus assigns. L(left), R(right) indicate monitor & pan

pot assignment.

13. LIM+LED: The limiter is a symmetrical peak detecting type & is completely out

of circuit when switched off. Threshold: See (15). Attack & release

times are preset internally (see layout A to change). The LED

indicates limiter action.

14. PFL/AFL+LED: Pre fade listen or After fade listen (post fader). The switch is not

momentary, the LED serves as warning that PFL or AFL is

selected.

15. Thres. Limiter threshold. Clockwise = lower threshold.

16.O/L Near overload indicator.

INPUT MODULE

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1

MODEL CS 208 v2

MAY 2003

INPUT MODULE

2

Right Section

17. Gain: Mic/Line preamp gain.

18. HF: High frequency amplitude control.

19. MF 500, 5k Mid-frequency select.

20. MF: Mid-frequency amplitude control.

21. N/S: N = normal, S = side for M/S decoding.

‘S’ inverts phase to B & D busses allowing one pair of channels to be

used with a M/S mic configuration and decoded to a L/R stereo signal

(this is an option, see separate application note).

22. LF: Low frequency amplitude control.

23. PF/AF: Selects pre or after fader for Aux 1 send.

24. A1: Aux 1 send (the aux sends are not affected by the ABCD mix bus

switches).

25. PF/AF: Selects pre or after fader for Aux 2 send.

26. A2: Aux 2 send.

27. Pan (switch): Switching the pan switch to the left disengages the panpot.

Crosstalk is therefore minimized and the output levels will remain equal.

28. Pan (pot): (L) = A & or C

(R) = B & or D

29. Channel fader

MODEL CS 208 v2

OUTPUT MODULE

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3

Monitor 2 & 3

1. DIR/TAPE: Selects direct or tape return signals (for

busses ABC & D).

2-7. A,B,C,D,A1,A2: Assigns busses to Monitor 2/3 outputs

(L) = left, (R) = right when using stereo
headphones.

8. M/ST/MS: M = mono, ST = stereo, MS = mid-side. Only

applicable if stereo headphones are used.
(See rear panel)

9. LEVEL: Gain Adjustment.

Aux 1,

Aux 2

10,11.: Aux 1 & 2 master level controls.

12. BNC: 12 volts available to power a ‘Littlite’®

(See meter panel).

13. RETURNS: Trim pots (multiturn) to adjust return (tape)

level to Monitors 1, 2 & 3 and the meters.

Meter Section

14. AUX/CD Meters 3, 4 = CD or Aux outputs

(3 = C or A1, 4 = D or A2).

15. PFL: Meters 1, 2 can indicate PFL selected on the

input channels (momentary switch).

16. TAPE/DIR: Tape/Direct. Meters indicate the return sig-

nals. (1 = A, 2 = B, 3 = C, 4 = D). CD/Aux
switch (14) overrides the tape return.

Monitor 1 Section

17. COMM: Communications return (talkback) to Monitor

1 only (See appl. note for 2 returns). The
multiturn trimmer below this switch adjusts
the level.

18. PL 1: Private line assign to Monitor 1 (down = on).

See master PL switch #28.

19. TAPE/DIR: Tape or Direct to Monitor 1

20. SOLO/OFF/ON
A,B,C,D,A1,A2:

Any combination of busses can be
monitored. ’SOLO’ disconnects the other-

busses to the Monitor 1 output - Solo
normally mono’s the signal to the
headphone out - there is an internal slide

switch to defeat this. ‘ON’ - In stereo mode

the busses are assigned to either (L) left or

(R) right.

21. M/ST/MS: M = mono, ST = stereo, MS = mid-side

(Monitor 1) Any combination selected by switch (20)

can be monitored in mono, stereo or
mid-side.

22. LEVEL: Gain control.
(Monitor 1)

23. MIC:

Internal slate mic (See #24, 25, 27).

OSC/SL SECTION

24. AB/CD/AUX: Assigns the oscillator or slate to AB,CD or

Aux busses- The aux. bus switch now has
3 positions. Left = off, Center = Aux 1 only,
Right = Aux 1 & 2.

25. EXT SLATE: Down = external slate mic input (on rear

panel). The trimmer below adjusts the slate
mic level.

OSCILLATOR SECTION

26. 10k/1k/100: Frequency select for the internal oscillator.

LEVEL: Adjusts oscillator level (multiturn).
OSC: Internal oscillator - Up = on,

Down = momentary on.

27. SL: Slate mic; Down = with LF (low frequency)

tone. Up = no LF tone.

28. PL SECTION: Master private line to Monitors 1, 2 or 3.

The level is adjusted by the multiturn
trimmer above.

2/+/3: Assigns PL to Monitor 2, 2 & 3 or Monitor 3

only.

29. ROLL 1,2: Independent remote control for many types

of recorders (see separate application
note).

30. MASTER FADERS: ABCD - Normally left at maximum for

optimum headroom and signal to noise

ratio.

MODEL CS 208 v2

MAY 2003

OUTPUT MODULE

4

LEFT TO RIGHT
MONI 2, MONI 3: Monitor 2 & 3 outputs - for stereo or mono headphones

(or mono wireless communications).

FUSE: 2.5 A (5 x 20 mm).

EXT POWER: Pin 1 = negative DC, Pin 3 = Battery charge (positive),

Pin 4 = Positive DC (see specifications).

AES OUTS (Option) Digital outputs for A,B,C,D busses.

Clock reference in (upper BNC). Clock reference out (lower BNC)

UNBALANCED OUTS(TQG): A,B,C,D Pin 1 = ground, Pin 2 = signal.

UNBALANCED OUTS(DB9): A,B,C,D.

BALANCED OUTS(XLR): A,B,C,D, Aux 1, Aux 2.

ROLL 1 & 2: Remote control for various recorders.

MIX BUS IN: A,B,C,D (current input).

COMM IN: Communications input to Monitor 1 (balanced).

SL IN: External slate mic input.

RETURNS: A,B,C,D, balanced inputs.

BAL PREFADE OUTS(Option): Pre or post fader channel outputs (+4dBU balanced)

for multitrack recording (standard wiring).

DIR OUTS: Channel direct outs, post fader (unbalanced).

INSERTS: Can be changed to direct out, prefade (unbalanced). See Board A layout.

XLR Inputs: Transformer balanced (mic or line level).

2 spare holes: Stereo input channel option.

MODEL CS 208 v2

REAR PANEL

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MODEL CS 208 v2

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PIN OUTS

6

All XLR’s are wired pin 2 high. XLR 3M

Pin 1 = Ground
Pin 2 = High

Insert Pin 3 = Low

1/4” stereo jack Tip = Send

Ring = Return

Phones 1, 2, 3

Sleeve = Ground 1/4” stereo jack (max load = 25Ω per channel)
or direct out, prefader Tip = Left
(see appl. note AN 2A & 2B v.2) Ring = Right

Sleeve = Ground

Direct Out Comm. In.

(post fader) XLR 3F
1/4” mono jack Tip = Signal Pin 2 = High

Sleeve = Ground Pin 3 = Low

Pin 1 = Ground
(See application note AN 3 v.2 for multiple inputs)

Mix Bus in

DB9 1 =Ground Returns

2 = D XLR 3F

3 = C Pin 2 = High

4 = A Pin 3 = Low

5 = B Pin 1 = Ground
(current input, see specifications)

Ext. Slate in

Outputs XLR 3F

DB9 1 = Ground Pin 2 = Signal

2 = A Pin 3 & 1 = Ground

3 = B

4 = C DB25 Balanced Outputs (Option)

5 = D Pin

Pin

Ch.1 Hot 24 Ch.5 Hot 18

TQG 3M Cold 12 Cold 6

Pin 1 = Ground Ground 25 Ground 19
Pin 2 = Signal
Pin 3 = N/C Ch.2 Hot 10 Ch.6 Hot 4

Cold 23 Cold 17

TQG 5M (roll) (See application note AN 1 v.2) Ground 11 Ground 5

Pin 1 = -10 v (Nagra)
Pin 2 = Stop (Nagra) Ch.3 Hot 21 Ch.7 Hot 15
Pin 3 = Pause/Stop (DATs) Cold 9 Cold 3
Pin 4 = Common (DATs) Ground 22 Ground 16
Pin 5 = Record (DATs)

Ch.4 Hot 7 Ch.8 Hot 1

Cold 20 Cold 14
Ground 8 Ground 2

MODEL CS 208 v2

CSST-STEREO MODULE

MAY 2003

7

Overload indicator.

MODEL CS 208 v2

MAY 2003

CSST-STEREO MODULE

8

-83 dBu (Z = 1.4kΩ)
+28 dBu

-40 dB Zin≈10kΩ

-15 dB Zin≈600Ω

-55 dB Zin≈10kΩ

EIN (20 - 20 kHz,150Ω)

MODEL CS 208 v2

SPECIFICATIONS

MAY 2003

9

General: (0 dBu ≈ .775v RMS)

Dimensions 16.5” x 15.2” x 5” (419 x 386 x 127 mm)

Weight with no batteries 19 lbs. (8.6 kg)

with alkaline cells 23lbs. (10.4 kg)

Overall distortion (THD + N) < 0.01% (0.003% typ.)

Equivalent input noise (150Ω 20-20kHz) -129.5 dBu

(150Ω ‘A’ WT’D) -131.2 dBu

Power Requirements:

External: 10v - 25v operating range.
Consumption with all channels on is ≈ 630 mA at 12v DC < 8 watts (410 mA at 18v DC)

Estimated battery life with 12v, 8 AH lead acid battery > 10 hours.

12v, 12 AH lead acid battery > 15 hours.
18v, 14 AH alkaline cells > 15 hours.
(Ni-CAD D cells are ≈ 1/3 the capacity of alkaline cells.)

XLR - 4M:

1 = Ground (-)
2 = N/C

*3 = Battery charge (+)

4 = External in (+) * Do not connect if rechargeable batteries are not installed.

Internal Power: 12 ‘D’ alkaline cells

PPM

VU Nordic

Battery test: + 18v DC = +2 +3 Full Scale (Last mark)

+ 12v DC = -6 0 +4
+ 10.5v DC= -8 -1 +2

BNC light: +12v out, 500 mA max. (1815 bulb ≈ 180 mA).
Power on LED: Turns off when the voltage is 11v or less.
Power cut off voltage: ≈ 10v DC (internal supply switches off).
48v Phantom: 48v +/- 1v.
12v T: 12v +/- 1v.

MODEL CS 208 v2

MAY 2003

SPECIFICATIONS

10

System Power Connections and Precautions:

RE: (+) chassis equipment.

The Nagra must have a separate supply, with no common power supply connections to the mixer or other (-)
chassis equipment.

Input:

Reference: -8PPM, 0VU (XLR’s are pin 2 high).

Mic In: (Transformer balanced)

Minimum input level -83 dBu (Z in 1.4k Ω)
Maximum input, line position (no pad) +28 dBu (Z in 10k Ω)

Pad 15 dB Z in ≈ 600Ω
Mic/Line 40 dB Z in ≈ 10kΩ
Combined 55 dB Z in ≈ 10kΩ

High Pass Filters:

Hp 1 Pre - transformer 100Hz -6 dB/oct.
Hp 2 Post - transformer & pre Amp. 70Hz -12 dB/oct.

EQ:

High frequency +/- 12 dB @ 10 kHz
Mid frequency +/- 15 dB 500 - 5 kHz
Low frequency +/- 12 dB @ 100 Hz

Insert: Send/direct out, pre-fader -11 dBu Z

out

= 47Ω (+4 dBu with boost)

Return -11 dBu Zin≈ 5kΩ

Direct out (post-fader): -8 dBu Z

out

= 47Ω

O/L indicator: -3 dB MOL

Limiter:

Threshold Variable* -6 PPM to M. O. L. (+4 PPM typ.)
Attack 1 ms
Release 150 ms

(M. O. L. = maximum output level = 25 dBu on XLR outs, +19 dBu on unbalanced outs.)

Pan pots: Center = -3 dB

All specifications are measured with the pan pots panned either L or R.