Meyer Sound CP-10S User manual

CP-10S
Complementary Phase
Parametric Equalizer
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 Complemen-
tary Phase Parametric Equalizer is a two-
channel 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 reinforce-
ment or studio monitoring, and features
Meyer Sound’s exclusive Complementary
Phase circuitry. Capable of matching ex-
actly 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, in-
concert, multiple-point measurement
with Complementary Phase equalization,
this revolutionary technology assures un-
precedented sound system performance
in the most difficult acoustical environ-
ments. (For more information on SIM
System II, contact Meyer Sound.)
The CP-10S also serves as a very effec-
tive, high-quality equalizer for music re-
cording monitors. Its graceful, symmetri-
cal parametric filters and natural phase
characteristics ensure maximum flexibil-
ity with minimum sonic perturbation.
Coupled with very low harmonic distor-
tion 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 uncom-
promised performance in recording and
reinforcement applications. Individually
socketed, field-replaceable circuit cards
and automatic bypass switching ensure
maximum reliability with extended use.
MeyerSoundLaboratories,Inc.
2832 San Pablo Avenue
Berkeley, CA 94702
[phone]
FAX [phone]

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, maxi-
mum input level is the
minimum worst-case
level achieved before
clipping.
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.)
CP-10S Specifications
Frequency Response120 Hz – 20 kHz ±0.5 dB
Total Harmonic Distortion2< 0.01%
Hum and Noise -90 dBV “A” weighted, unbalanced
Dynamic Range3110 dB
Inputs
Type Balanced active
Impedance 20k ohms balanced
Level4+4 dBu nominal, +20 dBu maximum
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,
Boost/Cut, Lo and Hi Shelving Cut
Rear Panel Ground Lift switch, Gain switch,
AC Voltage 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)
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
gaged. When power to the CP-10S is inter-
rupted, input signals are bypassed directly
to the corresponding outputs.
The front panel may be removed without
affecting control settings, and each equal-
ization stage resides on a separate, gold-
socketed circuit card for ease of service. An
optional smoked plastic security cover dis-
courages tampering in fixed installations.
The clearly marked front panel includes
individual in/out switches for each equal-
ization band, with screwdriver-adjustable
frequency, bandwidth and boost/cut con-
trols. LEDs indicate power status and sig-
nal clipping.
Signal flow through the device is con-
trolled by a delayed relay which allows the
CP-10S circuitry to stabilize before it is en-