preamps, onboard

The "BassXX" preamp is a filter-based pre-amp which provides very flexible parametric EQ control with sweepable mids. Its outstanding sound performance is achieved through careful circuit design with attention to detail and selection of finest components available.

It has an extremely low noise floor and a tube-likedynamic response. The warm and smooth sound has no discernable hiss even at extreme high frequency boosting. Because the input impedance is higher than most other bass and guitar preamps, passive pickups will retain their natural frequency response and tonal character, as well as piezo ceramic transducers will do. Pulling ‘up’ on the treble control achieves true bypass of the EQ and allows for passive operation.

The passive sound is virtually identical to the active sound in tone and level if the EQ is set flat. In passive mode, only the volume controls works, but passive tone control can be added on custom instruments.

The onboard circuit in combination with the battery power supervisory is a patent pending product. When the blue LED starts to flash the battery is getting low and needs to be changed within roughly 10 hours. All

  • "BassXX" EQ’s/Pre-amps are completely shielded, this means no additional shielding of your instrument control cavity is required.
  • High definition amplifier design results in precise and smooth sound reproduction without signal losses.
  • 0,1% precision metal film resistors in the signal path with a resultant noise factor of up to 10 times lower than standard thick film resistors.
  • Low tolerance film capacitors featuring lowest distortion and superior linearity.
  • Highest quality available trimmer pots.

All at Bassparts available BassXX-products come as a wired bundle constisting of:

  • BassXX-Element with LED and volume pot
  • battery-clip and output jack

An additional passive tone blend - and balance pot can be ordered seperately


Display per page
Sort by

Active 2-band EQ with stacked pot (bass/ treble), and volume pot.
With low-battery indicator (LED)

129.00 *

In stock - ready for shipping within 3-4 working days

Active 2-band EQ with single pots (bass/ treble), and push/pull volume pot. With low-battery indicator (LED)

138.00 *

In stock - ready for shipping within 3-4 working days

Active 3-band eq with stacked pot (bass, treble), mids and volume-pot. With low-battery-indicator (LED).

159.00 *

In stock - ready for shipping within 3-4 working days

Active 3-band EQ with single pots (bass, mids, treble), and push/pull volume pot. With low-battery indicator (LED)

168.00 *

In stock - ready for shipping within 3-4 working days

Active 3-band eq with stacked push-pull- pot (bass/treble), parametric midrange (stacked) and volume-pot. With low-battery-indicator (LED).

182.00 *

In stock - ready for shipping within 3-4 working days

Active 3-band EQ with single pots (bass, parametric midrange, treble), and push/pull volume pot. With low-battery indicator (LED)

191.00 *

In stock - ready for shipping within 3-4 working days

* Prices incl. VAT, plus Shipping