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Mullard

1x Mullard CV492 = B339 (Premium ECC83) Short Plates - Blackburn '63 - NOS

1x Mullard CV492 = B339 (Premium ECC83) Short Plates - Blackburn '63 - NOS

Regular price $394.95 USD
Regular price Sale price $394.95 USD
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Soundlumia's Opinion

No other tubes can deliver vocals like the Blackburn Mullard's, and that's a fact. These ECC83's are extremely hard to find today and are becoming every serious audiophile's darling.  

The overall tonality of Mullard ECC83 tubes is warm and lively with a very spacious sound stage. "Like a warm British jacket of the finest tweed, these glorious tubes have an attractive sweet warmth in their midrange and lower regions."  This is how the experts on audiotubes.com describe the sound signature of British-made Mullard tubes. The top end is silky and pleasant and doesn't get rolled off. They retain a fine sense of "air" at the top, and the upper midrange is smooth and liquid. These tubes reproduce the human voice, especially female voices, with haunting realism. The British made Mullard tubes are also known to have an attractive sparkle at the top with rich bass...now we know where that "warm British jacket" comes from!

The CV492/B339 variant, as presented in this listing, is the ultra premium version of Mullard ECC83 and even harder to find these days. Sonic improvements made possible by CV492/B339 include extra large imaging, overwhelming details and super clean bass. 

Professional Tube Testing
Tube 1:

Measured transconductance(GM): 1.91/1.88 mA/V - 119%/118% (100% = 1.6 mA/V)
Measured plate current(IA): 1.57/1.465 mA - 131%/122% (100% = 1.2 mA)

NO shorts, leakage or gas. NO noise or microphonics.

Curve trace is also included in the original RoeTest report.

Appearance & Cosmetic condition

Silkscreen: 98% - 100% (Immaculate)

Date codes:

I61 B3D2 (B = Blackburn, GB, 3 = 1963, D = April, 2 = Week 2 of the production month)

Packaging

NEW reproduction Mullard tube boxes.

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