Operation

Operation

1 2 3

Figure 4 PA 250 front panel

1Power LED — Lights when the PA 250 is on.

2Level control — Adjusts the amount of compensation for amplitude losses caused by cable resistance.

3Peaking control — Adjusts frequency compensation. It is similar

to the sharpness control on a television. It compensates for the effect of capacitance of long cables. Use the symbol at the left as a guide for adjusting the control.

Specifications

Video

Gain adjustment

-4.9dB to 3.0dB

Peaking adjustment

30 MHz to 100 MHz, maximum +8dB

Bandwidth

250 MHz (-3dB)

Video input

Number/signal type

1 analog RGBHV, RGBS, RGsB, RsGsBs

Connectors

5 BNC female

Nominal level(s)

Analog

0.7V p-p

Minimum/maximum level(s) ....

Analog

0.4V to 2.0V p-p with no offset

Impedance

75 ohms

 

Horizontal frequency

15 kHz to 150 kHz

Vertical frequency

40 Hz to 140 Hz

Return loss

-37dB @ 5 MHz

Video output

Number/signal type

1 analog RGBHV, RGBS, RGsB

Connectors

5 BNC female

Nominal level

Analog

0.4V to 2.0V p-p

Impedance

75 ohms

 

Return loss

-20dB @ 5 MHz

Specifications

DC offset ....................................... ±10mV maximum

Sync

Input type

RGBHV, RGBS, RGsB, RsGsBs

 

Output type

RGBHV, RGBS, RGsB

 

Input level

RGBHV, RGBS

TTL

5V p-p

 

RGsB, RsGsBs

analog

0.3V p-p

Output level

TTL

4V to 5V p-p

 

Input impedance

510 ohms

 

 

 

Output impedance

75 ohms

 

 

 

Max input voltage

5V p-p

 

 

 

Input sensitivity

0.6V to 5V p-p

 

 

Max. propagation delay

130 nS

 

 

 

Max. rise/fall time

4 nS

 

 

 

Polarity

RGBHV, RGBS

positive or negative

 

 

 

(follows input)

 

RGsB, RsGsBs

negative

 

General

Power

100VAC to 240VAC, 50/60 Hz, 10 watts,

 

internal, auto-switchable

Temperature/humidity

Storage -40° to +158°F (-40° to +70°C) / 10% to

 

90%, non-condensing

 

Operating +32° to +122°F (0° to +50°C) / 10% to

 

90%, non-condensing

Rack mount

Yes, with optional rack shelf #60-190-01

Enclosure type

Metal

Enclosure dimensions

1.75" H x 8.75" W x 9.5" D

 

4.45 cm H x 22.23 cm W x 24.13 cm D

Shipping weight

5 lbs (2.3 kg)

Vibration

NSTA 1A in carton (National Safe Transit

 

Association)

Approvals

UL, CUL, CE

MTBF

30,000 hours

Part number

60-179-01

Warranty

2 years parts and labor

Part number

Part number

60-179-01

Specifications are subject to change without notice.

Extron Electronics, USA

 

Extron Electronics, Europe

 

Extron Electronics, Asia

 

Extron Electronics Information

1230 South Lewis Street, Anaheim, CA 92805

 

Beeldschermweg 6C, 3821 AH Amersfoort

 

135 Joo Seng Rd. #04-01, PM Industrial Bldg.

 

ExtronWEB: www.extron.com

800.633.9876 714.491.1500 FAX 714.491.1517

 

+31.33.453.4040 FAX +31.33.453.4050

 

+65.383.4400 FAX +65.383.4664

 

ExtronFAX: 714.491.0192

USA

 

The Netherlands

 

Singapore 368363

 

24-hour access—worldwide!

 

 

 

© 2000 Extron Electronics. All rights reserved.

User’s Guide

PA 250

Peaking Amplifier

68-202-02 A Printed in the USA 01 01

4 PA 250 • Operation and Specifications

Page 1
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Extron electronic PA 250 specifications Operation, Specifications

PA 250 specifications

Extron Electronics PA 250 is a high-performance amplifier designed specifically for audio distribution in various environments, including conference rooms, classrooms, and auditoriums. This amplifier stands out due to its robust build, user-friendly design, and advanced features that cater to the needs of modern audio systems.

One of the main features of the PA 250 is its powerful output capability. With a maximum output of 250 watts, it can easily drive multiple speakers simultaneously, making it suitable for larger venues. The amplifier operates in a Class D topology, which not only enhances efficiency but also reduces heat generation, ensuring reliable performance over extended periods.

The PA 250 is equipped with multiple input options, including balanced and unbalanced audio inputs. This versatility allows it to integrate seamlessly with various audio sources, such as microphones, mixers, and other audio equipment. The inclusion of a priority paging feature enhances its functionality, allowing critical announcements to take precedence over other audio sources, which is particularly beneficial in emergency situations.

Another important characteristic of the PA 250 is its built-in DSP (Digital Signal Processing). This technology enables users to fine-tune the audio output to suit specific environments by adjusting parameters such as equalization, compression, and limiting. The DSP provides users with greater control over the sound quality, ensuring clear and impactful audio reproduction, essential in professional settings.

In terms of connectivity, the PA 250 features both input and output connectors that support various cable types, making installation straightforward. The amplifier is also designed with reliability in mind, featuring overload protection to prevent damage during peak usage periods. Additionally, it includes a fan-less design for quiet operation, ensuring that noise from the amplifier does not interfere with presentations or speeches.

For ease of use, the PA 250 is equipped with a front panel that includes controls for volume adjustment, input selection, and indicator lights for monitoring performance. This user-friendly interface allows for quick adjustments during events or presentations.

Overall, the Extron PA 250 amplifier exemplifies the integration of advanced technology and practical features designed to meet the demands of modern audio environments. Whether for educational institutions, enterprise settings, or public venues, the PA 250 delivers reliability, versatility, and exceptional audio quality, making it a valuable addition to any audio system.