WAVAC AudioEC-300BnewWAVAC Audio EC-300BA Class Single Ended 10W+10W Power Amplifier Trade-ins welcome up to 50% of the retail price. Please contact for details (310) 770-2111 [email protected] The legendary 300B power triode has long...38000.00

WAVAC Audio EC-300B

Listing ID: lisa0i60 Classified 
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New Retail Price: $38,000.00


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Ships fromLos Angeles, CA, 90014
Ships toUnited States and Canada
Package dimensionsunspecified
Shipping carrierunspecified
Shipping cost$10.00
Original accessoriesBox, Manual
Agon miniAverageResearch Pricing

A Class Single Ended 10W+10W Power Amplifier  

Trade-ins welcome up to 50% of the retail price. Please contact for details (310) 770-2111 [email protected] 

The legendary 300B power triode has long been the first choice of many serious music listeners because of the natural, emotional presentation of amplifiers using this power tube. The 300B tube works very well in traditional circuits and this is part of the reason why this ancient triode has become so famous worldwide. We appreciate the achievements of old-fashioned single- ended 300B amplifiers, but the dream of the full potential of 300B for musical reproduction has only come true with the creation of the EC-300B amplifier. 

In the EC-300B, 300B tube is special adaptation of our proprietary IITC interstage transformer coupling circuit. Our design is carefully tailored to furnish ideal drive conditions for the output tube, opening the door to dramatic new levels of low-end articulation and dynamic excitement for single-ended 300B amplifiers. The ample 10 watt output of the EC-300B provides full-bodied musical reproduction that you will appreciate for a long, long time. 

The result of our intensive research, the EC-300B, is a completely modern amplifier dedicated to the timeless quest for musical enjoyment.


  • Power Tube: 300B

  • Effective Power output: 10 watts per channel

  • Frequency range: 20Hz-100KHz

  • Input sensitivity: 1.0Vrms

  • Input impedance: 100k ohms

  • S/N ratio: 80dB

  • Power consumption: 260 watts

  • Load impedance: 8(4/16) ohms

  • External dimensions: 485Wx350Dx220H(mm)

  • Weight: 60lbs (27kg) 


-An Adaptation of IITC circuit concept featuring a unique configuration 
which cancels DC magnetization in the interstage transformer for 
outstanding bass performance and rich musical reproduction.

-All direct-coupled circuitry. We avoid coupling capacitors to ensure 
maximum purity of reproduction.

-The 300B heaters are supplied from a well filtered DC source to 
minimize hum and noise.

-The 10mm thick chassis is NC machined from solid aluminum and 
finished in a satiny champagne-gold finish.

-The specially-designed transformers used in WAVAC Audio Lab. amplifiers are 
custom-wound to the highest standards by TANGO, the most 
renowned transformer manufacturer in Japan.

-All tube sockets are machined out of solid Teflon, fitted with gold 
plated phosphor bronze contacts and mounted on elastomeric 
vibration insulators.

-Gold-plated speaker jacks which will accommodate heavy audiophile 
speaker cables are mounted on the top of the amplifier for easy 

-Reduction of noise caused by electric power supply is realized by 
a power line input filter.

-A perforated aluminum bottom plate provides effective cooling for long 
component life.

-An attractive laboratory glass canopy suspended on elastomer 
supports is provided the output tubes.

-The input tube is a triode-wired Western Electric 435A, a superb 
small-signal device designed to meet the highest standards of 
performance and reliability in vital telecommunication applications.

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