Electrovoice 205-4t Brochure
To order or for more information
call 1-800-685-6386
17
All Electro-Voice CPS amplifiers are made to meet the highest requirements of any
demanding application.The mechanical construction follows the highest precision standards
of the industry. The extensive 5-way protection system features comparator circuitry
which constantly monitors the input and output signals and activates the internal
limiters whenever a non-linear operational state is encountered.This provides reliable
protection of the connected loudspeaker systems against overload and clipping.This
exclusive protection system provides 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.
demanding application.The mechanical construction follows the highest precision standards
of the industry. The extensive 5-way protection system features comparator circuitry
which constantly monitors the input and output signals and activates the internal
limiters whenever a non-linear operational state is encountered.This provides reliable
protection of the connected loudspeaker systems against overload and clipping.This
exclusive protection system provides 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.
The electronically balanced inputs 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 trouble-free operation even in
smaller power amplifier rack systems.
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 trouble-free operation even in
smaller power amplifier rack systems.
The CPS2 incorporates all the advanced features 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.
(TSP) that monitors the current demands of the 70v/100v matching transformer and can
protect against overload and distortion.
CPS2t
CPS2
Power amplifier
CPS1
60-watt
75-watt
150-watt
200-watt
300-watt
400-watt
600-watt
15600
15470A
15300
15200
15150
15075
15060
4/8-ohm primary load, 70.7/100-volt secondary load, 0.5 dB insertion loss.
Power amplifier output
Transformers
Specifications
CPS1
CPS2
CPS2t
Maximum Power
2 ohms
650 watts
850 watts
850 watts
(<1% THD, 1 kHz
4 ohms
450 watts
600 watts
600 watts
both channels driven)
8 ohms
280 watts
380 watts
380 watts
Rated Power
2 ohms
450 watts
650 watts
650 watts
(<0.2% THD, 20 to 20,000 Hz
4 ohms
350 watts
500 watts
500 watts
both channels driven)
8 ohms
230 watts
300 watts
300 watts
Maximum Bridged Output
4 ohms
1300 watts
1700 watts
1700 watts
(<1% THD, 1 kHz)
8 ohms
900 watts
1200 watts
1200 watts
Slew Rate
25 V/ms
30 V/ms
30 V/ms
Total Harmonic Distortion
<0.05%
<0.05%
<0.05%
Intermodulation Distortion
<0.08%
<0.08%
<0.08%
Crosstalk (at 1 kHz)
<-80 dB
<-80 dB
<-80 dB
Input Impedance (Balanced)
20 k ohms
20 k ohms
20 k ohms
Signal to Noise Ratio (dB-A Weighted)
>105 dB
>105 dB
>105 dB
Dimensions
Height
5.2 in. (133 mm)
5.2 in. (133 mm)
5.2 in. (133 mm)
Width
19.0 in. (483 mm)
19.0 in. (483 mm)
19.0 in. (483 mm)
Depth
15.2 in. (386 mm)
15.2 in. (386 mm)
15.2 in. (386 mm)
Weight
33.1 in. (15.0 kg)
35.3 in. (16.0 kg)
49.6 in. (22.5 kg)
Power requirements: 120v, 50 Hz - 60 Hz, factory configured.
Protection: Audio limiters, high temperature, DC, HF, Back-EMF, Peak current limiters, Inrush current limiters, turn-on delay.
Cooling: Front-to-rear, 3-stage-fans.
Note: Amplifier at rated conditions, both channels driven, 8 ohms load, unless otherwise specified.
Protection: Audio limiters, high temperature, DC, HF, Back-EMF, Peak current limiters, Inrush current limiters, turn-on delay.
Cooling: Front-to-rear, 3-stage-fans.
Note: Amplifier at rated conditions, both channels driven, 8 ohms load, unless otherwise specified.
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