Boost 6112

 If you are looking for the ideal tube boost to give your guitar signal that pure analog sound, the 6112 is the right choice. For the real sound conaisseurs .. after the release of the much acclaimed Lex Bos Superdrive, this is the latest design and pedal from Lex Bos. The production is in the hands of Floris Elfring, all pedals are carefully handmade and each one with a lot of attention and love. Every pedal is extensively tested, every detail must be good, so that you as a guitarist achieve your optimal sound.


Boost 6112 pedal | Elfring Amps
Boost 6112 Pedal | Elfring Amps
This pedal uses a sub miniature tube called 6112 also called pencil tube, these tubes are much smaller than the normal pre-amp tubes, more stable and last longer. These tubes are also used in various audio devices such as headphones and microphones. The 6112 tube was chosen because of the relatively high amplification factor 70. An ecc83 has a factor of 100 and an ecc81 factor of 80. The 6112 booster is not only appreciated for its boost capabilities but mainly for its sound properties. To save this, the pedal is often used on unity gain (un-amplified), often at the end of the effect chain, and is always on with most guitarists.
You can make all sounds of your pedals ‘bigger’, deeper and more harmonious in combination with the 6112. Delays sound much wider and deeper, your reverberation increases in color, distortions and fuzzes sound fuller and suddenly the 6112 tube just like an overdriven amplifier. . With the contour button you can fine tune the sound. It’s like your guitar sound goes from 2D to 3D.
Try out the 6112 before and after your pedals to find the ideal application for your guitar and playing style.
In combination with a distortion pedal, the 6112 works as an extra gain stage and with the contour knob you can subtly adjust your sound and adjust it to taste.




High voltage tube; max. 135V
Tube glow voltage; 6.3 V DC (glow voltage is then hum-free)
Total power consumption; 350 mA (0.35 A)
Internal (small) glass fuse; 1AT
Dimensions; wide 14 cm, deep 11.5 cm and high 5.5 cm (without legs)
Weight; 470 grams
Circuit; true bypass & led indicator
Clean boost; max. 28 db, position 4 is unity gain, below that attenuation without loss of tone

    Boost 6112 Pedal | Elfring Amps