By Cynthia Tobias. Guitar Electric. Published at Friday, August 31st, 2018 - 08:33:45 AM.
Of course, many factors affect the eventual sound of the note, in addition to simply how hard the string is plucked. The thickness and manufacture of the string, how close it is to the body, the body's shape and design, the type of pickup, the number of pickups, to name just a few. Once the signal reaches the amplifier, all manner of different effects and distortions are possible to create an individual voice for the instrument.
If you have a guitar with single coil pickups, you can't go wrong with Jensen style speakers. Single coils have an extended treble response and great clarity; and Jensen's are perfect for capturing that tone. If your guitar has humbuckers and you want a smooth, jazzy clean tone or a speaker that has a big bass sound for heavy metal distortion, then JBL or Electrovoice speakers will make you happy. Any of those American speakers will work well with American power tubes, like 6l6 or 6v6's. If you don't like the sound of American speakers, either because the Jensens are too bright or the JBL's and EV's are too bassy, then Celestion likely has a speaker you'll like. Celestions have the best midrange response; the tone of Britain is less "scooped" (i.e. more even in the treble, bass and midrange) than American style speakers. Not surprisingly, British speakers will pair well with British tubes, like El34's or El84's.
The second common OEM tube out there is the Chinese Shuguang 12AX7 (Groove Tubes also sells this tube as the 12AX7C; Tube Amp Doctor has also sold this tube as a TAD 7025; and it has also been sold by Mesa Boogie). The Chinese 12ax7's are constructed with short, fat plates, like the Sovteks, but they have an extra spacer above the tubes, a big nickel colored brace connecting the plates, and a "halo" getter on top. Again, if you see a tube made like this, it's a Chinese tube, regardless of whether it has Groove Tubes or Mesa Boogie or TAD written on the glass. These tubes have a warmer tone than the Sovteks and more gain (volume). As a result, they work well in high gain amps.
Another interesting spinoff of the JBL EV sound is provided by the Eminence line of woofers, including the lower powered Alpha and Beta speakers, and the high powered Delta (the Delta Pro 12A is marketed as similar to an EV 12L). Jazz amplifiers like Polytone and Evans (and Raezer's Edge cabinets) use Eminence woofers for a smooth solid state jazz tone. The Alpha's have better sensitivity and sound like the old Polytone speakers, while the Delta's have a more modern tone with a strong bass response that will not disort, even at high volume. In my opinion, they sound particularly good with humbuckers and flatwound strings.
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