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FS: "najah" - 180W Tripath Class D power amp

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Item: DIY 180W Tripath Class D power mplifier
Location: Langwarrin

Price: Price drop to $450 was $500 + postage (about $20)
Item Condition: Brand New only a week old.
Reason for selling: about to make a more expensive version
Payment Method: Pickup - Cash, Paypal, COD Only
Extra Info: This high power high performance power amp is based on the hifimediy T4 V1.3 Tripath Class D amp modules. It comes with an onboard power supply comprising a Motorola MUR2030 (30A) rectifier bridge with ultra fast soft recovery devices and 10,000uf Nichicon filter cap. Also on board is speaker crowbar protection, soft start, over and under volts and current protection and health status leds. The power transformer is an RS 500VAC 30+30 potted type. Input caps are Jantzen polies.


The enclosure is steel and AL and supports the heavy tranni well. It should also have more than an acceptable WAF. The enclosure is earthed and fused and the power cord is captured. Quality gold plated RCAs and solid brass gold plated 3-way speaker binding posts are on the rear. Soft rubber feet isolate the amp from the resting surface. 


Sound is balanced with an extremely tight grip on bass. Bass is extended and deep prompted by the oversize power tranni. Mid-range through to treble appears balanced and extended. In current configuration the amp should produce over 160W and drive well into 4 ohm loads. Distortion is typically 0.05% for quality Class D amps and output impedance is in the milli-ohms.




This product has not been manufactured by a qualified individual or company, therefore contains electrical circuits that do not necessarily comply with Australian Standards. I understand that as the seller, I may be liable to repercussions in the event of equipment failure. By advertising and selling this product, as the seller I also agree that I am solely liable, and the publisher of this website takes no responsibility for any injury or death resulting from, whether directly or indirectly, any accident that may happen as a result of the failure of the product being sold. If in doubt, seek the services of a qualified electrician to inspect the product to ensure it is safe for use.


Inside najah (600x800).jpg

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Edited by mwhouston
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