AB International CSV-450 Brochure

MODEL

CSV 450

CONTRACTOR SERIES

The AMPLIFIED DESIGN INT’L model
CSV450 is a mono 70.7-volt line amplifier
requiring no ‘external’ 70.7-volt transformer.
The 70.7-volt isolation output transformer
mounted inside the chassis is capable of
delivering 450 watts of power to the rear panel
PHOENIX connector to drive 70.7-volt line
speaker systems. Bandwidth of this amplifier /
transformer combination is 26Hz to 18kHz +/-

1.0dB (< 1.2dB down at 20kHz) with no more
than .1% distortion at rated power and
bandwidth (typical .01%) making it suitable for
quality music systems well beyond normal
public address and background systems.

The amplifier stage preceding the internal 70.7­volt output transformer uses only 20dB of
negative feedback to reduce forward distortion
components to minimum levels.

The CSV450 uses PHOENIX CONTACT
terminal connections at the rear panel for
balanced signal input and for external detection
monitoring (central or remote location) of the
following fault situations: loss of input signal,
loss of output signal on the 70.7-volt line and
loss of AC mains power source. Front panel
warning LED’s (red, green and yellow) give
visual (local) indication any of these faults. A
blue LED is used to indicate the amplifier is on.

The CSV450 utilizes 3 rear-mounted fans
producing 126 cfm of airflow thru the heatsink,
exhausting thru the front panel.

The CSV450 operates on 120vac, 50/60Hz
mains power and occupies only two rack spaces
(2U), 3.5in/ 8.89cm.

TM

Type:
Gain:

Power Output:
Frequency
Response:

Distortion:

Hum & Noise:
Input
Sensitivity:
Turn on
Delay:
Input
Connectors:

Contractor Series CSV 450

Specifications

One Channel
32dB @ 1.5vrms input
36dB @ 1.0vrms input
38dB @ .775vrms input
450 Watts @ 11 Ohms

26Hz-18kHz +/- 1.0dB
(25Hz-20kHz +/- 1.2dB)
No more than .1% 30Hz­18kHz (.01% typical)

-110dB

Selectable (.775,1.0,1.5vrms)

1 second

PHOENIX CONTACT

TM

Output
Connectors:
Indicators:

Power
Requirement:
Cooling:

Dimensions:

Weight:

PHOENIX CONTACT
(Front) Input signal loss, Output
signal loss, AC mains loss
(Fault) LED’s and AC mains
(power) LED. (Rear) Remote
fault dry contact output thru
PHOENIX connector.

120vac 50/60Hz 10 amp
3x42 cfm rear mount fans

3-1/2”H (8.89 cm), 19”W (48.3
cm), 15” (38.1 cm) behind panel,
16-3/8” (41.6 cm) overall

41 lbs (18.53 kg)

TM

Architect’s and Engineer’s Specifications

The mono amplifier shall be capable of meeting the following criteria: power output to 70.7-volt lines, 450
watts. The amplifier shall have rear panel terminal strip connections for balanced inputs and isolated
transformer output. The amplifier shall have rear panel terminal strip connections for remote or central
monitoring and detection of input signal loss, output 70.7-volt line loss, and AC mains power loss.

The amplifier shall have the following front panel controls and LED indicators: power rocker switch with blue
“ON” LED, fault LED’s for loss of input signal (green), loss of output signal (yellow) and loss of AC mains
power (red) (to remain on for no less than 20 minutes after loss of power).

The amplifier shall be a 2-rack space (2U) instrument.

The amplifier shall be the Amplified Design Int’l model CSV 450.

Amplified Design International (mfr of AB Int’l products) 1830-6 Vernon St. Roseville, CA 95678

Phone [phone] Fax [phone] Web Site: www.abamps.com E-Mail: [e-mail]