Meyer Sound CP-10S User Manual

CP-10S

Features

Complementary phase
Symmetrical boost/cut

Calibrated controls
Automatic bypass switching
Gold-socketed p.c. boards
Secure screwdriver adjust

Long-term reliability

Applications

Sound system equalization

Recording studio tuning

Resonance elimination

Early echo suppression

The Meyer Sound CP-10S Complemen­tary Phase Parametric Equalizer is a two­channel unit, each channel comprising
five bands of fully parametric equalization
and individual high- and low-cut shelving
filters. Screwdriver-adjustable controls
assure freedom from tampering.

The CP-10S is designed for precision
room equalization in sound reinforce­ment or studio monitoring, and features
Meyer Sound’s exclusive Complementary
Phase circuitry. Capable of matching ex­actly the properties of typical acoustic
resonances and reflections, this unique
circuitry makes possible simultaneous
improvements to an installed system’s
amplitude and phase response.

The CP-10S equalizer is an integral
component of Meyer Sound’s proprietary
SIM® (Source Independent Measurement)
System II. Coupling high-resolution, in­concert, multiple-point measurement
with Complementary Phase equalization,
this revolutionary technology assures un­precedented sound system performance

in the most difficult acoustical environ­ments. (For more information on SIM
System II, contact Meyer Sound.)

The CP-10S also serves as a very effec­tive, high-quality equalizer for music re­cording monitors. Its graceful, symmetri­cal parametric filters and natural phase
characteristics ensure maximum flexibil­ity with minimum sonic perturbation.
Coupled with very low harmonic distor­tion and a 110 dB dynamic range, these
attributes place the CP-10S in a class with
the finest room equalizers available.

With specifications to meet the most
demanding professional requirements,
the Meyer Sound CP-10S offers uncom­promised performance in recording and
reinforcement applications. Individually
socketed, field-replaceable circuit cards
and automatic bypass switching ensure
maximum reliability with extended use.

Meyer Sound Laboratories, Inc.
2832 San Pablo Avenue
Berkeley, CA 94702
[phone]
FAX [phone]

Complementary Phase
Parametric Equalizer

CP-10S Specifications

Frequency Response
Total Harmonic Distortion
Hum and Noise -90 dBV “A” weighted, unbalanced
Dynamic Range
Inputs

Type Balanced active
Impedance 20k ohms balanced

4

Level

Outputs

Type Balanced active push-pull
Impedance 300 ohms, 150 ohms per branch unbalanced
Level +4 dBu nominal, +26 dBu maximum

Controls

Front Panel EQ In/Out, Center Frequency, Bandwidth,

Rear Panel Ground Lift switch, Gain switch,

Indicators

Power Green LED
Ready Green LED

Clip (Input and Output) Red LEDs
Connectors 3-pin XLR male (outputs) and female (inputs)
Power 120/240V AC, 50/60 Hz, rear-panel switchable
Physical

Dimensions 19" W x 3 1/2" H x 7 1/2" D standard rack mount

Weight 13 lbs (5.9 kg)

1

2

3

20 Hz – 20 kHz ±0.5 dB
< 0.01%

110 dB

+4 dBu nominal, +20 dBu maximum

Boost/Cut, Lo and Hi Shelving Cut

AC Voltage switch

Notes:

1. All equalization circuits
out.

2. 1 kHz input at +4 dBu

3. “A” weighted noise floor
to maximum RMS output

4. Within the operating band
of each channel, maxi­mum input level is the
minimum worst-case
level achieved before
clipping.

The clearly marked front panel includes
individual in/out switches for each equal­ization band, with screwdriver-adjustable
frequency, bandwidth and boost/cut con­trols. LEDs indicate power status and sig­nal clipping.

Signal flow through the device is con­trolled by a delayed relay which allows the
CP-10S circuitry to stabilize before it is en-

gaged. When power to the CP-10S is inter­rupted, input signals are bypassed directly
to the corresponding outputs.

The front panel may be removed without
affecting control settings, and each equal­ization stage resides on a separate, gold­socketed circuit card for ease of service. An
optional smoked plastic security cover dis­courages tampering in fixed installations.

Individual In/Out switches for
each frequency band

Center frequency selection
(10:1 range)
Bandwidth control (0.1 octave
to 1.1 octaves, continuously
variable)
Boost or cut (± 15 dB)
High and low shelving cut filter
controls
LEDs indicate power status and

A ground lift switch floats audio
common (XLR connector pin 1) from
the chassis. (Earth and chassis are
always connected for safety.)

A gain switch adjusts for unity gain
with either balanced or unbalanced
input signal connections. (Outputs
remain balanced at all times.)