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Soundlumia
2x Amperex E88CC 6922 D-Getter Red Tip - Heerlen, NL '59 - Same code - Near NOS
2x Amperex E88CC 6922 D-Getter Red Tip - Heerlen, NL '59 - Same code - Near NOS
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Soundlumia's Opinion
The "textbook Heerlen sound" has been referenced in several Soundlumia listings of Amperex Holland E88CC/6922 tubes, and many tube enthusiasts asked what that all means. So this is the answer: the late 1950s and early 1960s tone, the timeless Philips radio tone that many of us grew up listening to, the beginning of over a decade's excellence in sound, the classic tonal template for all the great (and greater) Amperex Holland/Philips E88CC tubes.
Made in Heerlen, Holland in 1959, these tubes naturally share all the remarkable characteristics of the "textbook" Amperex Holland house sound. The midrange presentation is transparent, natural and expansive, with a slight touch of warmth that illuminates your music. Bass is deep and well controlled and the accuracy feels very similar to the high end German E88CC's. Sound separation and clarity on these are nearly on par with the Amperex PQ (Premium Quality) tubes - you should hear absolutely nothing but the pure soul of your music and all of it when you use these tubes.
And what differences does the D-getter make on these? The textbook sound refined: cleaner instrument separation, smoother top end extension and taller imaging.
Professional Sound Evaluation
This pair worked wonderfully and sounded terrific in our professional studio setup for monitoring.
- Input: Cambridge Audio CXC V2 dedicated CD transport + Schiit Audio Bifrost 2 Multibit DAC
- Amplification: Liquid Platinum Tube Amplifier by Alex Cavalli
- Output: Focal Clear MG Pro open-back headphones
Our full tube sound review was written 100% based on the actual listening experience while this pair of tubes were running in the system described above.
Professional Tube Testing
This set was tested and certified by RoeTest V11 Professional Tube Testing System with the following result:
Tube 1:
Measured transconductance(GM): 12.69/12.19 mA/V - 102%/98% (100% = 12.5 mA/V)
Measured plate current(IA): 16.882/15.922 mA - 113%/106% (100% = 15 mA)
Tube 2:
Measured transconductance(GM): 11.17/14.8 mA/V - 89%/118% (100% = 12.5 mA/V)
Measured plate current(IA): 13.087/19.297 mA - 87%/129% (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
Silkscreen: 95%
Date codes:
⊿9D (⊿ = Heerlen, NL, 9 = 1959, D = April)
⊿9D (⊿ = Heerlen, NL, 9 = 1959, D = April)
Packaging
NEW reproduction Amperex tube box
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