Do Not Open - Peavey VX 1.5K Operating Manual

Stereo power amplifier
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A
Intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure
that may be of sufficient magnitude to constitute a risk of electric shock to persons.
A
Intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the
literature accompanying the product.
CAUTION: Risk of electrical shock
DO NOT OPEN!
CAUTION: To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside. Refer servicing to
qualified service personnel.
WARNING: To prevent electrical shock or fire hazard, do not expose this appliance to rain or moisture. Before using this
appliance, read the operating guide for further warnings.
Peavey Electronics is proud to announce the introduction of a new line of exciting Professional Power Amplifi¬
ers. The new VX™ series is the result of years of research & development into a smaller, lighter, compact and
more powerful amplifier. These units operate much more efficiently than contemporary power amp designs
thereby requiring less current from the mains power plug and consequently produce far less heating. This new
technology allows the VX-1.5K to reliably produce more than 1500 W RMS into 4 ohms (Bridge Mode) in a two
rack space unit, at extremely low distortion levels.
These new designs use a new class of operation called CLASS BG. This class uses two levels of power supply
"rails,'' but switches between the rails faster and at lower distortion levels than does a typical Class G design.
This unit then combines higher efficiency and lower distortion, and together with our all new Non-saturating
Series Single Emitter Resistor topology (NSSER), provides awesome performance levels with full power 20
kHz distortion below 0.04%, and with slew rates greater than 40 V/uSec. This technology is called DYNAMIC
LOGIC and is covered by a U.S. Patent (Pending).
The following is the new VX-1.5K specs:
550 W RMS into 4 ohms; 750 W RMS into 2 ohms (per channel)
1100 W RMS into 8 ohms; 1500 W RMS into 4 ohms (bridge mode)
Slew- Rate: 40 V/microsecond. stereo mode, each channel
Frequency Response: 20 Hz - 20 kHz, +-0.2 dB. at rated power
Total Harmonic Distortion: Less than 0.04%, at rated power
Hum and Noise: 100 dB below rated power, unweighted
The unit is attractively packaged in a rugged, rack-mountable configuration requiring only two rack spaces.
Naturally it has Peavey's patented DDT™ Compression Circuitry, and has a very flexible back panel. The design
uses dual two speed fan cooling to provide all the cooling necessary for the two ohm load conditions.
FEATURES
• 19" rack-mountable design requiring two rack spaces
• Automatic two-speed dual fan cooling system
• Separate power transformers/circuit breakers for each channel
• Independent channel thermal/fault protection
• DDT activation LED and power LED each channel
• Calibrated/detented input attenuator controls each channel
• Two recessed balanced input transformer sockets for PL-2's
• Single XLR and dual phone plug inputs each channel
• XLR input can be transformer balanced
• Dual phone plug and 5 way binding post outputs each channel
• Rear panel DDT defeat, mode select and ground lift switches

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