Sovtek EL84M Power Vacuum Tube
A military-spec version of the standard Sovtek EL84 - the Sovtek EL84M's extended voltage tolerance - improved plate dissipation - and rugged construction make it equivalent to the RCA 7189. Chosen by Matchless for their designs - the EL84M also features higher transconductance - more power - and longer life than the less expensive EL84 - making it perfect for hi-end audio applications. However - many musician's prefer the regular EL84's warm distortion to the EL84M's tighter - cleaner tone. For all Hi-Fi users - the EL84M is definitely the tube of choice.
NOTE: Due to the larger diameter of the glass envelope, this EL84 will NOT fit in the following amplifiers:
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Ordered 8 matched for my Manley Stingray. They sounded kind of bloated straight out of the box, but settled down quickly (several hours). Now they sound great now. I think I understand why you are given the option to order up to 9 matched - I can easily bias 7 of the 8 tubes, but 1 is out of the bias range of the pot. Still sounds good.
reviewed by: Jeffrey
Got a pair of these for my 6505 MH and it completely changed the amp. More headroom, more responsive, quicker and more aggressive breakup. LOVE THESE TUBES!!
reviewed by: Jason
I picked up four of these guys for an H.H. Scott 299 rebuild. Needed the extra heat capacity, and these guys deliver. Fine sounding, extra clean tubes.
reviewed by: J.Scott