Kool & Elfring – 1984, Vollröhrentopteil, 18 Watt


Kool & Elfring – 1984, Vollröhrentopteil, 18 Watt

1984 – Der Name ist Programm. Wer sich schon immer für den legendären Brown Sound von Großmeister Eddy begeistern konnte, wird von diesem Amp schlicht und einfach begeistert sein. Best Plexisound PUR. Wertig, stabil und Sounds die einen wegblasen…Angeschlossen an eine 2×12/4×12 Box geschlossen drückt der Amp ohne Ende. Wer glaubt 18 Watt Vollröhre sind leise….der wird hier eindeutig eines besseren belehrt. Der Amp ist eine ganz klare Kaufempfehlung.

Main Features:
  • 2 channels: channel 1 (mild/hot) channel 2 (beyond 11)
  • 2 modes on channel 1: ‚mild‘ and ‚hot‘
  • Controls: CH1 Gain, CH2 Gain, Bass, Mid, Treble, CH2 Master, Presence, Volume 1, Volume 2
  • CH 2 master: levels CH2 with CH1
  • SVC – Seamless Volume Control: from 0,1 watt ‚bed room‘ levels to 18 watt ‚Rock Arena‘ levels (no tone loss at lower volumes, no need for power-soak)
  • Ultra wide gain range control for ultimate gain versatility
  • True bypass effects loop
  • 2 footswitchable (SVC) volumes
  • 3 button footswitch: channel, effects loop, selection between volume 1 and volume 2
  • Outputs 4, 8, 16 Ohm or 2×16, 2×8 Ohm

Specification 1984 – 18 Watt:

  • Output: 18 Watts R.M.S.
  • Special designed ’18 Watt Plexi‘ output transformer
  • Power tubes 2x6V6 power tubes
  • 5xpre-amp tubes: 4x12AX7 + 1x12AU7(effects loop)
  • Outputs 4, 8, 16 Ohm or 2×16, 2×8 Ohm
  • Weight: approx. 12 kg
  • Handsoldered printed circuit board in the Netherlands by Kool & Elfring

Finish & Construction:

  • Handmade A to Z bij Kool & Elfring
  • dimensions: H=25 cm W=51 cm D=25 cm
  • 13 ply lightplex
  • Finger joint corner construction
  • Assymmetrical handle for perfect balance
  • High quality vinyl covering
  • Tolex: Black Paisley
  • Piping: Gold



Channel 1 ‚Mild mode‘ is more clean with tighter bass response

The sounds of channel 1 ‚Mild mode‘ are best described as dynamic, three-dimensional, open and sparkling. It’s warm yet with good definition. The gain setting starts at splendidly sparkling and dynamically clean. Beyond one o’clock the clean morphs into a clean sound with sweetly organic edge of breakup. Around three o’clockvery gradually the sound changes into a sweet and subtle 3d-crunch.

Channel 1 ‚Hot mode‘ Is hotter with fatter bass response

The ‚Hot mode‘ is close to the original Plexi sound and feel. The sound breaths, its three-dimensional and open sounding with spongy bass response, very fat mids and those rich halo-kind of high frequencies that fade away just before becoming to harsh or brittle. Just like the original this amp is super dynamically. Even with the gain at full you’re still able to clean up the tone by soft attack on the strings or turning back the volume knob on your guitar. Turning up the the guitars volume knob and hitting the strings hard will give you that that briliant complex saturation which makes Plexi tone so unique.

Channel 2 : Overdrive / Hotrodded Plexi

Channel 2 captures the perfect blend of 90’s overdrive and 80’s plexi-tone. Extra gainstages are added to the internal circuitry resulting in a more compressed tone with endless sustain. The overall “Plexi feel“ is still there but just bigger, fatter and hotter. Sweet, tonesoaked overdrive for the contemporary rock gods!

SVC -Seamless Volume Control- Tube amp volume under control…

The SVC power feature enables the amp to produce 0,1 Watt bedroom levels yet retaining great tone. That is without thinning up the tone nor destroying the sustain.