Philips ECC88 6DJ8 Red Tip Select Tubes Matched Pair - Holland 1966/67 - NOS

Sound qualities What a great decade for the legendary Heerlen tubes! You get the "textbook" Philips/Amperex Holland midrange presentation that is transparent, natural and expansive, with a slight touch of warmth that illuminates your musical world. The top end is super airy, smooth and nicely extended like one would expect from the best Siemens tubes. Vocals are intimate, sweet and forward (but not right in your face) and that always reminds me how the vocals sound on the best Mullard tubes. Bass is deep and well controlled and the accuracy feels very similar to the high end German ECC88's (Siemens, Telefunken.) Professional Sound Evaluation The 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