I would recommend Celestion Heritage 12H-30 55Hz speakers or maybe a Scumback higher wattage 55Hz 12H-30's from Jim if you feel you want a higher wattage speaker, the 55HZ IMHO makes most of the difference to my ears, more woody and chewy more akin to the Pulsonic 0014 coned greenbacks, I would love to compare them side by side but I have absolutely no regrets with the 12H-30 55hz heritages.
My experience with my Scumback M65 which are 65 watts each was they need even more volume than my blackbacks to get into the zone where I liked them pretty much the same with the 6402's and my Blackbacks which I still have.
From Scumback on the BM55:
BH55 | | |
| | 50 ounce H (heavy magnet), 55hz bass response, 12 inch special design aged cone, small dust cap with vintage correct doping, spider, and voice coil tolerances. A close recreation of the 444 bass cone, with the more aggressive lower & upper midrange and sharper highs this speaker produced. This speaker is very similar to the tone produced in the checkerboard cloth Marshall cabs of the mid to late 70's. These speakers differ from my pre rola speakers by having a more aggressive upper midrange tone, with a bit more upper mids, and not quite as dark as H55's. Awesome for players who want a bit more bite.
Specially treated 55hz cone. | | Blackback era style doping just like the originals. | 50 oz magnet, 1.75" voice coil, 12" wide. | | 8 bolt pattern allows mounting to most amps. | Available in 30, 65 & 100 watt, 99 db. | | 8 ohm & 16 ohm only. |
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