Lusithand Devices 800 BM on board bass preamp back cavity mounting

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The 800BM preamp borrows the EQ section of the famous GK800RB amplifier and squeezes it into an onboard preamp while making it lower impedance through-out for quieter operation.

Being a Boost-Cut preamp, the Hi-mid and Treble controls are highly interactive; same goes for the Lo-Mid and Bass controls and together with the Contour switch allows for a palette of sounds at the tip of your fingers.
The preamp is set for approximate unity gain and there is a Gain trimpot that allows for a little bit of boost on the overall audio signal.

An important feature of this preamp is the ability to choose how you want your stacked potentiometers to function since these have connector cables. It is up to you if treble goes on top or bottom of the potentiometer or if you want to pair the Hi-mid and Treble on one pot and Lo-Mid and Bass on the other, it is, ultimately, your choice.

The potentiometers are labelled "top" and "bottom" while, on the motherboard, "Hi-mid"; "Lo-mid"; "Treble" and "Bass" are also labelled for an easy and intuitive installation.

Potentiometers: x2 dual concentric (10mm bushing height, 8mm ⌀) top = 6mm ⌀; bottom = 8mm ⌀ Switch: 6mm ⌀, 9mm bushing height

-Treble: Boost & cut around 4khz. -Bass: Boost and cut at around 60Hz

-Contour: Mid scoop

-Hi- Mid: Boost and cut at around 1khz. -Lo- Mid: Boost and cut at around 250Hz

Gain: -Trim pot : Boost or cut of the input audio signal.

-Voltage: 9 to 27VDC Current Draw: 4mAh (9v)

MSRP : $260.00

An Active Balance Control with Master Volume is now available separately.

For lots of great videos of LUSITHAND high end products, go to YouTube.

Latest video released Jan 8th : Gallien Krueger 800RB ONBOARD BASS PREAMP

For Jazz bass owners looking for a Lusithand NFP Wal type filter or the 800TS already mounted on a Jazz plate,look for & click "View more from this shop."

Warranty and Conditions: Any of our products, that are defective, will be replaced/ fixed and all expenses will be covered once it has been verified that the problem isn't a result of bad handling or negligence on the owners part. If the damage is due to negligence or wrong handling, warranty is lost and a cost can occur for the devices repair (the shipping costs will not be covered in such cases).
Warranty is valid for 2 years after the date of purchase.