(SC Nov '12) This high specced power amplifier operates in Class 'D' as opposed to earlier amplifiers which run in the more conventional Class 'AB' or Class 'A'. The new Class 'D' amplifier offers the extrem

Classic 250W Class D Audio Amplifier Kit

Name: Classic 250W Class D Audio Amplifier Kit
SKU: K5181
Price: 95.45 AUD
Availability: InStock

by: Silicon Chip Magazine

SKU: K5181

(SC Nov '12) This high specced power amplifier operates in Class 'D' as opposed to earlier amplifiers which run in the more conventional Class 'AB' or Class 'A'. The new Class 'D' amplifier offers the extremely low distortion figures of a Class ''A'' whilst still having the efficiency of a standard class''AB'' amplifier (as seen in Silicon Chip Magazine Nov ’12).

$95.45

All Prices Shown are (ex GST)

Bulk Pricing

ea	$95.45
4+	$84.77

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Overview
Details
Warranty

Overview

This high specced power amplifier operates in Class ''D'' as opposed to earlier amplifiers which run in the more conventional Class ''AB'' or Class ''A''. The new Class ''D'' amplifier offers the extremely low distortion figures of a Class ''A'' whilst still having the efficiency of a standard class''AB'' amplifier. This simple to build kit with its 250W into 4Ω output will make an ideal subwoofer or front floorstanding speaker driver in a home cinema setup. (as seen in Silicon Chip Magazine Nov ’12)

Important Note For Kit Buyers:
This product is supplied in component form and requires soldering, drilling, and assembly. We recommend users are familiar with at least basic electronic principles and have the ability to solder.

Specifications:

Total harmonic distortion and noise: Typically <0.01%

Power output: Up to 150W into 8Ω and 250W into 4Ω power supply dependent

Power output, bridged, 8Ω only: 450-500W power supply dependent

Efficiency: Typically 90% at full power for 8Ω and 83% for 4Ω

Signal-to-noise ratio: 103dB with respect to full power

Input sensitivity: 2V RMS@4Ω, 2.2V RMS@8Ω

Frequency response: 10Hz - 20kHz +/-1dB

Power requirements: +/-40 - 60Vdc, 50-55V nominal

Over-temperature cut-out: 75ºC

Under-voltage threshold: +40V

Over-voltage threshold: +75V

DC offset protection threshold: > +/-4Vdc

Over-current threshold: 29A

Idling (no signal) frequency: 500kHz adjustable

MOSFET dead time: 45ns

Features:

High efficiency
high power
Low distortion and noise
Bridging option for driving 8Ω loads with two modules
Over-current protection
Over-temperature protection
Under-voltage switch-off
Over-voltage switch-off
DC offset protection
Fault indicator
Amplifier running indicator
Optional speaker protector module

Details

Products specifications

Warranty	12 Months

Warranty

WARRANTY

We offer 12 Months warranty on this product from its date of purchase. This is available from Altronics stores, online purchases or Altronics resellers. In accordance with our full warranty terms we will repair, replace or refund if goods you have purchased from us are defective.

30 DAY MONEY BACK GUARANTEE

Not withstanding our warranty policy, if you are dissatisfied with our goods or service you may return the goods within 30 days of our despatch date. Simply contact us for a return authorisation number and we will refund your purchase in full, less transport costs on receipt of goods. All returned goods must be in as sold condition including all packaging, instructions, invoices etc.

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