Adam Monroe's Slap Bass was sampled from a Fender Jazz electric bass guitar with Carvin J99 pickups and GHS Boomers bass strings, directly into a Radial Pro48 DI Box and an AMPEG Micro VR SVT AMP. An extended range was obtained by tuning the E-string down to a D.
"Slap" and "pop" articulations were carefully and meticulously recorded for each note, although in the extreme upper range of the bass, do to tension of the string, slap notes starts to become indistinguishable from pop articulations. The user can blend between Amp and DI sounds. The AMP channel is slighter brighter/edgier well the DI channel provides more of a mellow slap bass sound.
the plugin features 10 velocity layers at 4 note round-robin, and the dynamic range is between -15 db and -1 db, as bass guitars are typically compressed signals that end up somewhat level in modern recordings. For D and G string notes, pop articulations can be triggered at higher velocities with slap articulations being triggered at lower velocities. Alternate articulations are omitted, and thus the plugin only features a slap bass sound - this was done to preserve space and quality - the older version of Adam Monroe's Slap Bass featured pick articulations but less velocity layers and channels.
Bass strings were periodically cleaned with denatured alcohol, as the metallic Boomer sound tends to darken rather quickly. Pains were taken to ensure that the transition in tone between strings was minimized by selecting the best places to start sampling a new string.
Slides were recorded for most strings, but were omitted for things like open strings, or when sliding down or up would overshoot standard tuning. Major and minor thirds were chosen for the sake of usability. Slides were recorded at a tempo of 120 BPM.