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2x Lorenz PCC88 = 7DJ8(6DJ8 equiv.) Orig. Boxes w/ matching numbers -Stuggart

2x Lorenz PCC88 = 7DJ8(6DJ8 equiv.) Orig. Boxes w/ matching numbers -Stuggart

Regular price $254.00 USD
Regular price Sale price $254.00 USD
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Product Summary

These must be the most exotic European audio tubes! So elusive they're even unheard of in many parts of the world. Not many of these tubes are around, either, let alone a strong matched pair! Although lesser known than big names like Telefunken and Siemens, they are just as remarkable as any other German-made tubes and have been the go-to tubes for guitar amplifier users. To many of us the Lorenz date codes are a great mystery, and yet the unmistakable "round logo" of Lorenz puts us in no later than 1958, the last year of the original Lorenz tube production and when the "SEL" tubes began to be manufactured by the company's successor Standard Elektrik Lorenz (SEL). And remember the lovely sharp pointy tips are only found on 1950s' tubes?
Sound Qualities

Like most German tubes, they are characterized by an impressive open "air" at the top end, and the soundstage is large, even in mono applications such as my classical vinyl records from the early '50s, these tubes  provides you with a full 3-D imaging. The midrange is ruler flat,  a.k.a. natural sound, and the bass is tight and accurate. One very unique feature of Lorenz tubes is the fine sense of dynamics you get from anything you play - it feels you are enveloped by an invisible "musical body" that you can't escape from and it's cerebrally joyful. Last but certainly not the least, as the legend goes for all the German tubes, these are astonishingly quiet. If you're seeking European ECC82/12AU7 tubes with ultra low noise look no further. These will get the job done fantastically.

Professional Tube Testing

This set was tested and certified by RoeTest V11 tester with the following result: 

Tube 1: 

Measured transconductance (GM): 12.09/14.07 mA/V  - 96%/113%  (100% = 12.50 mA/V)
Measured plate current (IA): 15.315/18.765 mA  - 102%/125%  (100% = 15 mA)

Tube 2:

Measured transconductance (GM): 14.55/12.38 mA/V  - 116%/99%  (100% = 12.50 mA/V)
Measured plate current (IA): 19.845/15.022 mA  - 132%/100%  (100% = 15 mA)

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

Curve trace is also included in the original RoeTest report.

Appearance & Cosmetic condition

Besides its wonderful sound characteristics, we treasure this pair also because its great cosmetic condition as well. The paint is still intact, including the Lorenz logo and PCC88 lettering. 


This pair of tubes will be packaged in the Original Lorenz tube boxes.


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