Toa CX-124 User manual

TOA PROFESSIONAL SOUND SYSTEM
MIXING CONSOLE
CX-124/CX-164
DESCRIPTION
The CX-124 & CX-164 are professional quality mixing
consoles with 12 (CX-124) & 16 (CX-164) inputs, 2 stereo
inputs, and 4 group outputs, 1 stereo output and 1 sum
and 3 auxiliary outputs. The CX consoles are designed for
use in professional sound reinforcement systems. They
provide a wide range of versatile functions to meet all
mixing requirements. Their high performance capabilities
and modular construction assure reliability, easy operation
and simple maintenance.
Each input channel has balanced/unbalanced connectors,
and a variety of operating features such as signal
processing device insertion, condenser mic. phantom
power, and trim controls, all to enhance system versatility. A
pan control assigns the fader output signal of each channel
to group 1, 2, 3, 4, or to stereo L and R. Cue switches on
input/output channels allow headphone/cue monitoring of
pre-fader signals. Additional stereo inputs are provided for
auxiliary equipment hook-ups. Three independent aux.
outputs are included, one pre-EQ, one post-fader and one
switchable.
FEATURES
Each Input Channel:
1. Electronically balanced, low impedance XLR connector,
and balanced 1/4" phone jack.
2. Accessory input/output jack.
3. Input pad switch and trim control.
4. Three-band equalizer with sweepable mids.
5. Signal/peak indicator LED.
Other Features:
1. Phantom power switch for each set of 4 input channels.
2. Cue switch on each input channel, stereo and aux.
input, and on group, stereo and aux. outputs.
3. Log-linear 100mm faders.
4. Stereo inputs for playback deck, CD player, etc.
5. LED bargraph peak meters for group 1, 2, 3, 4, or aux.
send 1, 2, 3, SUM output and stereo output L and R.
6. Installation of optional input/output transformers allows
conversion of electronically balanced input/output to
transformer balanced I/O.

SPECIFICATIONS
Frequency Response +0.5, -1.0dB 50Hz ~ 15kHz
+0.5. -3.0dB 20Hz ~ 20kHz
Total Harmonic Distortion 0.1% at +4dB 1kHz
Equivalent Input Noise
(Rs=150 ohms)
S/N (Rs=150 ohms)
-130dB (IHF-A)
69dB (20Hz ~ 20kHz) GROUP OUT or
70dB (IHF-A) STEREO OUT
Crosstalk
-60dB at 1kHz
Maximum Voltage Gain 76dB INPUT to GROUP OUT,
82dB INPUT to GROUP OUT to STEREO OUT,
26dB STEREO IN to AUX SEND
Channel Equalizer LOW 20Hz ±15dB Shelving,
MID 300Hz~4kHz variable +15dB Peaking,
HIGH 20kHz ±15dB Shelving
Peak Indicator
Phantom Power
LED turns on when the pre-fader and post EQ
signal reaches 6dB before clip.
+ 24V DC
AC Line Voltage
Power Consumption
AC Mains, 50/60Hz
CX-124 48W, CX-164 52W
Dimensions (W x H x H) CX-124 837 x 147 x 680mm (33.0" x 5.79" x 26.8")
CX-164 997 x 147 x 680mm (39.3" x 5.79" x 26.8")
Weight
CX-124 23kg (50.7 lb.), CX-164 27kg (59.5 lb.)
Input Specifications
Contents in ( ) stand for CX-164 data.
DIMENSIONAL DIAGRAMS
CX-124
Input Level
Input For Use with
PAD
TRIM
Nominal Nominal
MAX. Before Clip
Connector
ON[20dB]
LOW-Z 50-6OO Ω OdB + 20dB
CH INPUT
-40
Mics or Lines.
XLR-3-31 or equivalent
l-12(16)
OFF HIGH-Z 10k Ω
- 20dB + 10dB [Balanced]
[0dB] 0
Lines
- 60dB - 30dB
Phone Jack [Balanced]
ACCESSORY IN 1~12 (16) 10k Ω Lines - 10dB + 10dB Phone Jack [Unbalanced]
STEREO IN L. R 1, 2 1Ok Ω Lines - 10dB + 14dB Pin Jack
AUX RETURN L, R/MONO
1Ok Ω Lines + 4dB + 20dB
Phone Jack [Unbalanced]
Output Specifications
Output
For Use with
Output Level
Nominal Nominal
MAX. Before Clip
Connector
GROUP OUT 1~4
STEREO OUT L, R 600
Ω Lines
+4dB +26dB XLR 3-32 or equivalent
SUM OUT
[Balanced]
AUX SEND 1,2,3
10k Ω Lines + 4dB + 20dB Phone Jack [Unbalanced]
ACCESSORY OUT 1-12 (16) 10k
Ω Lines - 10dB + 20dB Phone Jack [Unbalanced]
CUE OUT L, R 10k Ω Lines + 4dB + 20dB Phone Jack [Unbalanced]
REC OUT L, R
10k Ω Lines - 10dB + 8dB Pin Jack
PHONES
8Ω
1.5mW(8 Ω)
2OmW(8 Ω )
Phone Jack (TRS)
*Stereo phone jack IS wired: Tip=Left, Ring=Right and Sleeve=Common
The XLR type connectors are wired as follows.
PIN NO.1  Ground PIN N0.2  Cold (Low) PIN NO.3  Hot (High)
CHARACTERISTICDIAGRAM
Input Characteristics
CX-164
mm (in.)

BLOCKDIAGRAM
LEVEL DIAGRAM

OPTIONAL ACCESSORIES
l IT-M4CX Microphone Level Input Transformer
l IT-L4CX Line Level Input Transformer
The CX-124 and the CX-164 are designed with electronically
balanced inputs. However, the optional input transformer IT-M4CX
(for microphone input) or IT-L4CX (for microphone or line inputs)
can be built into the consoles, for conversion into a transformer
input system. The input transformer is used only for four channels.
IT-M4CX
SPECIFICATIONS
l OT-X4 Output Transformer Panel
The TOA OT-X4 is an output transformer panel containing four
individual transformers. A one rack unit size panel, the OT-X4 is
mountable in 19" racks.
SPECIFICATIONS
Model No. OT-X4
Frequency Response
20Hz~20kHz. ±1dB at 1kHz
Distortion Less than 0.5% (20dB*, 20Hz)
Constant Loss Within 1dB (at 1kHz)
Model No.
IT-M4CX
Frequency Response
50Hz ~ 15kHz within ±1.0dB Impedance 600 ohms/600 ohms
Dimensions (W x H x D)
483 x 47.1 x 280mm (19.0" x 1.85" x 11.0")
Distortion Less than 0.4% (50Hz, ~ 20dB) Weight 36kg (7.9 lb.)
Maximum Input Level - 2dB 50Hz 1%
*0dB is referenced to 0.775V rms.
Constant Loss
Impedance Within 1.5dB at 1kHz
600 ohms/600 ohms
IT-L4CX
SPECIFICATIONS
Model No. IT-L4CX
Frequency Response
Distortion
Maximum Input Level
Constant Loss
30Hz
~ 20kHz within ±0.15dB
Less than 0.2% (50Hz, +5dB)
+ lldB-50Hz 1%
Within 1.5dB at 1kHz
Impedance 600 ohms/600 ohms
*0dB is referenced to 0.775V rms.
Mixing Consoles Stand
CX-1OT
TOA Corporation
*Specifications are subject to change without notice.
Printed in Japan (407) 833-64-027-1A