Electro-voice CPS1, CPS 2, CPS 2T BROCHURE

The extensive and complete protection system features com­parator circuitry, which constantly monitors the input and out­put signals and activates the internal limiters whenever a non­linear operational state is encountered. This provides reliable
protection of the connected loudspeaker systems against over­load and clipping as well as on-board protection against thermal
and capacitive overload, short-circuit and the occurrence of HF
or DC at the output.
Additionally, special circuitry prevents the output-stage transis­tors from being damaged by Back-EMF. During soft start, de­layed switching of the power outputs is accomplished via relays
and a limiter controls the initial current inrush, preventing the
mains fuse from being blown during the power-on operation.

All models feature electronically balanced inputs that are provid­ed via XLR-type and Phoenix connectors, which are also used to
loop the signal through. Using the Input Routing-switches lets
you determine if the amplifiers are operated in stereo or monau­ral mode; “monobridged” operation is also possible.
The dB-scaled level controls are to be found on the rear panel.
These potentiometers guarantee precise and reliable operation.
In normal operation all CPS power amplifiers can be used to
drive loads down to 2 ohms; in bridged mode the minimal load

is 4 ohms. All amps are equipped with extremely silent running
fans providing front-to-rear air circulation, guaranteeing trouble­free operation even in smaller power amplifier rack systems.

CONTRACTOR
PRECISION SERIES

PROFESSIONAL POWER AMPLIFIERS

COMPLETE
PROTECTION

SUPERIOR
FLEXIBILITY

The original CPS power amplifiers have provided reliable, clean
power amplification in thousands of fixed audio installations
worldwide. The CPS1, 2 and 2T continue to offer excellent value

for a variety of installations in churches auditoriums, convention
centers, factories, stadiums, etc., anywhere reliable performance
is needed and space is not at a premium.

THE CPS ORIGINAL AMPLIFIERS –
Exceptional Reliability and Value

The CPS1 can deliver up to 450 watts of power

at 1kHz into 4 ohms. The CPS 1 has been
extremely popular in smaller venues such as houses of worship,
retail spaces, and entertainment venues where background or fore­ground music is needed.

The CPS2 incorporates all the advanced fea-

tures of the CPS1 but can deliver up to 600 watts

of power at 1kHz into 4 ohms.

The CPS2T offers all the performance of the

CPS2 and adds the capability of 70v/100v con­stant voltage operation. It also features Transformer Saturation
Protection (TSP) that monitors the current demands of the 70v/100v
matching transformer and can protect against overload and distor­tion. The exceptions reliability and performance of the CPS2T has
made it the amplifier of choice for a wide variety of distributed audio
installations such as convention centers, factories, warehouses, sta­diums, office buildings etc. Anywhere large amounts of reliable 70v
amplifier power is needed the CPS2T can meet the spec easily.

CPS1

CPS 2

CPS 2T

*

* CPS1, CPS 2 THX approved, CPS 2.4, 2.6, 2.8, 2.11 pending

THE CPS CLASS-H
HIGH EFFICIENCY SERIES

With the EV’s new CPS Class-H series you get more of what you
have come to expect from EV’s original CPS power amplifiers:

These state-of the art power amplifiers offer our proven original
CPS performance and reliability in a new compact, lightweight
format. This is made possible by incorporating a highly efficient
Class-H design, which results in substantially less heat being gener­ated. This allows the overall size of the amplifier to be reduced sub­stantially without sacrificing performance or reliability. In addition,
new features enhance the operational flexibility in many of your
installations. And all of this is coupled to our comprehensive pro­tection package present in all EV CPS amplifiers.

• HIGHER EFFICIENCY

• MORE FLEXIBILITY

• MORE COMPACT FORMAT

INNOVATIVE ENGINEERING
MEANS EXTRA RELIABILITY

In EV’s Class H design, rather than supplying the voltage for the
maximum output power permanently, the permanent voltage rail
is designed to cover the average music signal. If dynamic peaks
require a higher output voltage, the voltage rail is switched to the
maximum. This process saves nearly 50% of the power con­sumption in a conventional design and results in a dramatic
reduction in heat output. The real test in a successful Class-H
design is to make the voltage switching totally unaudible to the
user. This is where EV’s amplifier engineering excellence makes
the difference over other so-called “switching” designs. The

audio performance of the CPS Class-H amplifiers speaks for itself.
They truly set the new standard in Class-H amplifiers and meet
the expectations we set in the original CPS models. All the CPS
amplifiers have the ability to accept the XC crossover/filter cards.
The 24dB crossover cards send by default lo-pass signal on chan­nel A and hi-pass signal on channel B, but could be modified dif­ferently if needed. The XC5 for example is the perfect card to
make a CPS2 or a CPS 2.6 or CPS2.8 to drive a standard cinema
2-way system. The XHP card with variable 12dB hi-pass filters per
channel has a dedicated setting for the Sx600PI/PIX.

ALL THIS ADDS UP TO EXTRA PERFORMANCE

The CPS Class H series of amplifiers deliver state-of-the art
performance. All four models are capable of remote control
activation with adjustable power-on delay times saving time
and money in larger installs with central power distribution.

The specifications speak for themselves. Four models are
available ranging from 400 watts/channel all the way up to
1100 watts per channel into 4 ohms.

The CPS2.4 is ideal for smal-

ler full range systems or larger
mid/high frequency amplification in larger installa­tions. The CPS2.4 is an ideal companion to the
popular EVID line of premium surface mount and
ceiling speaker systems.

The workhorse of the line.
Its 600 watts of compact

power is perfect for mid level full range installs.

At 800 watts per channel

the CPS2.8 is the best val­ues in the line. It can power a wide range of
speaker cabinets either in multi-way or full range
modes for a large range of fixed installation jobs

.

No power amplifier on the

market can offer such a
high level of power performance and reliability. At
1100 watts/channel the CPS2.11 can power large
stadium, theatre and auditorium type installations
with ease.

CPS 2.4

CPS 2.6

CPS 2.8

CPS 2.11

“ All Contractor Precision Series amplifiers are made to meet the highest
requirements of any demanding application. The mechanical construction
follows the highest precision standards of the industry. Now with the addition
of the Class-H series, their flexibility is unmatched! “

LOAD IMPEDANCE:

MAX. MIDBAND OUTPUT POWER

THD = 1%, 1kHz, Dual Channel

RATED OUTPUT POWER

THD = 0,1 %, 20 Hz ... kHz

MAX. BRIDGED OUTPUT POWER

THD = 1%, 1 kHz

MAXIMUM RMS VOLTAGE SWING

THD = 1%, 1 kHz

POWER BANDWIDTH THD = 1%,
1kHz, half power @ 4 Ω

VOLTAGE GAIN ref. 1 kHz

INPUT SENSITIVITY

Rated power @ 8 Ω, 1 kHz

THD @ rated output power
(<0.1%, CPS2T@100V)

IDE- SMTP 60 Hz, 7kHz

DIM30 3.15 kHz, 15 kHz

MAXIMUM INPUT LEVEL

CROSSTALK ref. 1 kHz,

rated output power

FREQUENCY RESPONSE ref. 1 kHz

INPUT IMPEDANCE

active balanced

DAMPING FACTOR 1 kHz

SLEW RATE

SIGNAL TO NOISE RATIO

(A-weighted)

POWER REQUIREMENT

SPECIFICATIONS

CPS1 CPS 2 CPS 2T CPS 2.4 CPS 2.6 CPS 2.8 CPS 2.11

4 Ω

2 Ω 4 Ω 8 Ω 2 Ω 4 Ω 8 Ω 2 Ω

650W 450W 280W 850W 600W 350W 850W

- 350W 230W - 500W 300W -

- 1300W 900W - 1700W 1200W - 1700W 1200W -

56 V 64 V 52 V

32.5 dB 33.5 dB

+2.2 dBu

(1.0 Vrms)

+2.2 dBu

(1.0 Vrms)

< 0.08 % < 0.08 %

<0.03% <0.03%

35.0 dB

(42/39 dB)

(0.775 Vrms)

< 0.08 %

(<0.1%@100V)

<0.03%

(<0,1%CPS2T@100V)

25 V/µs 30 V/µs 30 V/µs 35 V/µs 35 V/µs 35 V/µs 35 V/µs

>105dB >105dB >100dB 103,5 dB 105,5 dB 107 dB 107 dB

240V, 230V, 220V, 120V or 100 V ; 50 ... 60 Hz (factory configured)

8 Ω 2 Ω 4 Ω 8 Ω 2 Ω 4 Ω 8 Ω 2 Ω 4 Ω 8 Ω 2 Ω 4 Ω 8 Ω

(100V/70V)

600W

380W 600W 400W 240W 900W 600W 350W 1100W 800W 500W 1600W 1100W 600W

(590/580W)

500W

330W - 300W 150W - 500W 250W - 700W 350W - 900W 450W

(590/580W)

1240W 800W - 1800W 1200W - 2200W 1600W - 3200W 2200W

52 V

52 V 50 V 62 V 72 V 78 V

(121V/88V)

10 Hz ... 60 kHz

32.0 dB 32.0 dB 32.0 dB 32.0 dB

0 dBu

+1.15 dBu
(0.88 Vrms)

+3.2 dBu

(1.12 Vrms)

+4.7 dBu

(1.33 Vrms)

< 0.05 %

< 0.02 % < 0.02 % < 0.02 % < 0.02 %

< 0.01 % < 0.01 % < 0.01 % < 0.05 %

+22 dBu (9.76 Vrms)

< -80 dB

15 Hz ... 40 kHz (±1 dB)

20 kΩ

> 300

+5.8 dBu

(1.51 Vrms)

POWER CONSUMTION

POWER DISSIPATION

1/8 max. output power @ 4 Ω

PROTECTION

COOLING

DIMENSIONS (W x H xD)

WEIGHT

OPTIONAL ACCESSORY

Note: all measurements both channels driven into 8 Ohms unless otherwise specified.

XC SERIES FILTER CARDS for CPS AMPLIFIERS:

690W 870W 870W 600W 500W 660W 820W

510W (1730BTU/hr) 650W (2220BTU/hr) 650W (2220BTU/hr) 396W (1350BTU/hr) 260W (885BTU/hr) 320W (1090BTU/hr) 396W (1350BTU/hr)

Audio Limiters, High Temperature, DC, HF, Back-EMF, Peak current Limiters, Inrush Current Limiters, Turn-On delay

Front to Rear, 3-stage Fans

483 mm x 88.1mm x 368.8mm (19” x 3.5” x 15.22”)

15 kg (33.1 lbs) 16 kg (35.3 lbs) 22.5 kg (49.6 lbs) 13.5 kg (30.8 lbs) 15 kg (33 lbs) 16 kg (35.2 lbs) 8.15kg (17.96lbs)

Rear-Rack Mount Kit 18” (D) 112933, Filter cards please see below!

All the CPS amplifiers have the ability to accept the XC crossover/filter cards. The 24dB crossover
cards (Linkwitz-Riley) send by default lo-pass signal on channel A and hi-pass signal on channel B, but could be modified differently if needed. The XC5 for example is
the perfect card to make a CPS2 or a CPS 2.6 or CPS2.8 to drive a standard cinema 2-way system (e.g. TS9040D-LX). The XHP card with variable 12dB hi-pass filters
per channel has a dedicated setting for the Sx600PI/PIX.

XC 5

- 500 Hz crossover point •

XC 8

- 800 Hz crossover point •

XC 12

- 1200 Hz crossover point •

XHP

- 12dB Hi-Pass variable (80Hz-300Hz) or Sx600PI/Sx600PIX

Americas Telex Communications Inc. 12000 Portland Ave South, Burnsville, MN 55337, USA

USA: Phone: [phone], Fax: [phone]
Canada: Phone: [phone], Fax: [phone]
Latin America: Phone: [phone], Fax: [phone]

Europe, Africa & Middle-East

Germany: EVI Audio GmbH · Hirschberger Ring 45, D 94315, Straubing, Germany • Phone: [phone], Fax: [phone]
France: EVI Audio France S.A. · Parc de Courcerin, Allée Lech Walesa, F 77185 Lognes, France • Phone: [phone], Fax: [phone]
UK: Shuttlesound Ltd. · The Willows Centre, Willow Lane, Mitcham, Surrey CR4 4NX, UK • Phone: [phone], Fax: [phone]

Asia & Pacific Rim

Japan: EVI Audio Japan Ltd. · 5-3-8 Funabashi, Setagaya-Ku, Tokyo, Japan 156-0055 • Phone: [phone], Fax: [phone]
Australia: EVI Audio (Aust) · Pty Ltd. Slough Business Estate, Unit 23, Silverwater, N.S.W. 2128, Australia • Phone: [phone], Fax: [phone]
China: EVI Audio (HK) Ltd. · 7th Floor China Minmetals Tower, No. 79 Chatham Road South, Tsim Sha Tsui, Kowloon, HK • Phone: [phone], Fax: [phone]
Singapore: Telex Pte. Ltd. 3 · 015A Ubi Road 1, 05-10 Kampong Ubi Industrial Estate, Singapore 408705 • Phone: [phone], Fax: [phone]

www.electrovoice.com

© 2003 EVI Audio GmbH • Subject to change without prior notice • 10/2003 • Order # 160012 • Printed in Germany