DESCRIPTIONspecifications, Features | Extron electronic PA 300s

DESCRIPTIONspecifications

The Extron PA 300 Peaking Amplifier offers an RGB video bandwidth of 350 MHz (-3dB) and is designed for systems requiring long cable runs of up to 1,000 feet (300 meters), where signal quality is a primary concern. The PA 300 maintains signal integrity with performance enhancing features such as variable gain, low and high frequency peaking, and support for bi-level and HDTV tri-level sync.

Variable gain control compensates for voltage variances, and allows sharp, bright image reproduction from virtually any signal source. Independent controls for low frequency and high frequency peaking compensate for smearing and detail loss, respectively, for superb image reproduction without regard to cable length or type.

The PA 300 restores the low level sync voltages found on many computers, as low as 1.8 volts, to normal TTL levels. This sync restoration prepares the signals to run down long cable runs and offers enhanced compatibility with a wide range of computers, display devices, and cable types.

Features

n350 MHz (-3 dB) RGB video bandwidth – Maintains signal integrity over very long cable runs without visible resolution loss or smearing

nDrives high resolution signals long distances – Capable of driving RGB video signals up to 600 feet (185 meters) with Extron MHR or similar cable, and up to 1,000 feet (300 meters) with Extron RG6 or similar cable

nVariable gain – Boosts overall signal voltage level to maintain image brightness and compensate for voltage losses due to cable resistance.

nSeparate low frequency and high frequency peaking – Eliminates low frequency image smearing, improves high frequency detail by compensating for losses due to cable capacitance

nRestores sync to TTL level – Ensures that the monitor or projector accurately locks to sync and displays a stable image

nTri-level sync compatibility – Supports new HDTV sources with tri- level sync signals

nInternal international power supply

Application Diagram

Extron

PA 300

Peaking Amplifier

Up to 600' MHR, or 1000’ RG6 (1600 x 1200 signal)

Projector

Extron

CrossPoint 300 84 HV

Matrix Switcher

Video
Gain		-2 to +4 dB (x0.75 to x1.4), adjustable;
		default = 0 dB
Peaking/equalization		LF pot: 0 to 3 dB at 10 MHz, adjustable
		HF pot: 0 to 15 dB at 120 MHz, adjustable
Bandwidth		350 MHz (-3 dB)
Output cable driving distance		Up to 600' (185 m) with Extron Mini HR cable
		Up to 1000' (300 m) with Extron RG6 or RG59
		cable (tested with a 1600x1200, 60 Hz computer
		video signal)

Video input
Number/signal type		1 analog RGBHV, RGBS, RGsB, RsGsBs
Connectors		5 female BNC
Nominal level		0.7 Vp-p for RGB excluding sync
Minimum/maximum levels		Analog: 0.4 V to 2.0 Vp-p with no offset at unity
		gain
Impedance		75 ohms
Horizontal frequency		15 kHz to 150 kHz
Vertical frequency		40 Hz to 140 Hz
Return loss		-30 dB @ 0 to 5 MHz
DC offset (max. allowable)		1 V

Video output
Number/signal type		1 analog RGBHV, RGBS, RGsB
Connectors		5 BNC female
Nominal level		0.7 Vp-p for RGB excluding sync when gain and
		peaking potentiometers are set to unity gain
		(follows input)
Minimum/maximum levels		Analog: 0.4 V to 2.0 Vp-p
Impedance		75 ohms
Return loss		-32 dB @ 5 MHz
DC offset		±5 mV with input at 0 offset

Sync
Input type		RGBHV, RGBS, RGsB, RsGsBs
Output type		RGBHV, RGBS, RGsB, RsGsBs
Input level		TTL: 1.8 V to 5.0 Vp-p
RGBHV, RGBS
RGsB, RsGsBs		Analog: 0.3 Vp-p
Output level		TTL: 5.0 Vp-p, unterminated
RGBHV, RGBS
RGsB, RsGsBs		Analog: 0.3 Vp-p, follows input
Input impedance		510 ohms
Output impedance		50 ohms
Max. propagation delay		H: 50 ns	V: 110 ns
Max. rise/fall time		H: 2.2 ns	V: 2.1 ns
Polarity		RGBHV, RGBS: positive or negative (follows input)
		RGsB, RsGsBs: negative

General
Power		100 VAC to 240 VAC, 50/60 Hz, 3.6 watts,
		internal, autoswitchable
Rack mount		Yes, with optional 1U rack shelf,
		part #60-190-01 or 60-604-01; or optional 1U,
		6" deep rack shelf, part #60-190-10 or
		60-604-10.
Enclosure type		Metal
Enclosure dimensions		1.7" H x 8.7" W x 6.0" D		(1U high, half rack
		wide) 4.3 cm H x 22.1 cm W x 15.2 cm D (Depth
		excludes connectors.)
Product weight		1.5 lbs (0.7 kg)
Shipping weight		3 lbs (2 kg)
Vibration		ISTA 1A in carton (International Safe Transit
		Association)
Listings		UL, CUL
Compliances		CE, FCC Class A, VCCI, AS/NZS, ICES
MTBF		30,000 hours
Warranty		3 years parts and labor
NOTE: All nominal levels are at ±10%.
Model	Version Description			Part Number
PA 300	PA peaking amplifier for RGBHV			60-755-01

Specifications are subject to change without notice.

06-05

68-1279-01 REV. A

PA 300s specifications

Extron Electronics PA 300S—an essential component in the realm of sound reinforcement—defines a new standard for performance and reliability. This compact power amplifier is designed specifically for applications in educational institutions, corporate environments, and commercial facilities, where high-quality audio is paramount.

One of the standout features of the PA 300S is its ability to deliver robust audio output. With a power rating of 30 watts per channel into 4 ohms, this amplifier ensures that speech and music reproduction are clear and impactful. Its ability to drive multiple speakers simultaneously without distortion makes it suitable for a range of setups, from small meeting rooms to larger training spaces.

In terms of technology, the PA 300S employs class D amplification, which contributes to its efficiency and compact form factor. Class D amplifiers are known for their ability to produce significant power while generating minimal heat. This feature not only extends the lifespan of the device but also reduces the need for bulky heat sinks, allowing it to be easily integrated into various installations.

The amplifier comes equipped with a variety of inputs including balanced and unbalanced options, making it compatible with a broad array of sources. The unit supports both microphone and line-level signals, providing versatility in how it can be employed. Additionally, the PA 300S includes a priority paging feature, which automatically lowers the volume of background music or other audio sources when a microphone signal is detected. This ensures that announcements are heard clearly, making it an invaluable tool in public address applications.

Another highlight of the PA 300S is its advanced protection circuitry. It is designed to guard against short circuits, overheating, and excessive power output, delivering peace of mind in high-demand settings. Furthermore, the unit's adjustable EQ settings allow for fine-tuning audio outputs to match the acoustics of the environment.

With its rugged construction and reliable components, the PA 300S is built to withstand the rigors of daily use. Its sleek and professional design ensures that it can fit seamlessly within any environment, whether on a shelf or mounted in a rack.

When it comes to versatility, performance, and reliability in amplification, the Extron PA 300S is a noteworthy choice, making it a go-to solution for various audio needs in professional settings.