ALLOMORPH: STANDARD P/J BASS EDITION
Transform your stock Fender P/J Bass into 19 legendary active, vintage, modern, and acoustic pickup configurations.
OVERVIEW
Allomorph turns your Fender P/J Bass into a versatile tonal chameleon. Instead of modeling an amplifier or speaker cabinet, Allomorph sits at the very beginning of your signal chain (Block 1 on the Darkglass Anagram) to reshape the actual sound, pickup response, and feel of your instrument.
With this pack, your P/J Bass can instantly deliver:
• Classic golden-era '60s Jazz Bass dual-pickup hollow scoops and singing Jaco growl
• Thunderous Music Man StingRay humbucker punch, hollow mid-scoop, and series bark
• Modern active slap preamps, boutique P/MM hybrids, and cutting progressive rock clank
• Warm Motown flatwound thump, deep reggae dub sub-bass, and punchy ceramic presence
• Acoustic upright double bass resonance for jazz and acoustic sessions
• Pure studio buffer clarity or organic vintage tube-friendly passive warmth
Calibrated specifically for a 34" Standard P/J Bass with stock split-coil P neck and single-coil J bridge pickups. Plug in, select a model, and hear your P/J transform into a completely different instrument in real time with zero latency.
RECOMMENDED SIGNAL CHAIN
[Fender P/J Bass]
-> [Block 1: Allomorph Pickup Twin] (Input / Pickup Front-End)
-> [Block 2: Amp / Drive / Preamp] (Darkglass B7K, SVT, B-15, etc.)
-> [Block 3: Speaker Cabinet IR] (8x10, 4x10, 1x15, etc.)
-> [FOH / Audio Interface / DAW]
Why Block 1? Overdrive pedals and amps react directly to the resonant character of your pickups. Putting Allomorph first ensures downstream pedals and amp models distort the authentic scoop of a Jazz pair, the clank of a StingRay, or the bite of an active preamp, rather than a generic DI signal.
QUICK INSTRUMENT SETUP
For each voicing, set your bass's physical pickup controls to the recommended bracketed setting [Parallel], [Neck], or [Bridge]:
• [Parallel]: P Vol 100% | J Vol 100% (Both Pickups Wide Open / Center Detent)
• [Neck]: P Vol 100% | J Vol 0% (Solo P Neck Split-Coil / Blend 100% Neck)
• [Bridge]: P Vol 0% | J Vol 100% (Solo J Bridge Single-Coil / Blend 100% Bridge)
• Master Tone Knob: 100% (Wide Open across all models)
Plug straight in. All pickup positioning, pot loading, tone capacitor shaping, and active preamp EQs are handled automatically by the models.
THE 19 DIGITAL TWIN VOICINGS
Jazz Bass Family
01. Modern Jazz Active [Parallel]
The quintessential NYC active slap tone: tight, massive sub-bass and crisp, glassy highs with a scooped midrange that pops right out of a dense mix.
02. 60s Jazz Pair [Parallel]
The golden-era '60s Jazz Bass sound. Transforms your P/J into dual single-coils wide open with that iconic hollow midrange scoop and singing top-end.
03. 60s Jazz 22nF [Parallel]
Jazz Bass pair with a vocal midrange punch. Thickens up your fingerstyle attack and smooths out harsh fret clank while keeping every note articulate.
04. Jaco Bridge Growl [Parallel]
The unmistakable Jaco Pastorius tone: run both pickups wide open while the model injects authentic neck-pot decoupling under the hood for that signature singing, vocal bridge growl and burp.
Music Man StingRay Family
05. StingRay Parallel [Bridge]
The iconic Music Man StingRay sound: thunderous low end, aggressive metallic slap clank, and that hollow midrange scoop heard on thousands of hit records.
06. StingRay Series [Bridge]
StingRay wired in series for a hotter, thicker signal with punchy low-mids and an aggressive, in-your-face rock bark.
P/MM Modern Hybrids
07. Modern P∕MM Active [Parallel]
Modern boutique session hybrid (Sandberg California / Lakland style). Blends the warm body of a P-bass neck with the punchy slap bite of a Music Man bridge humbucker.
08. P∕MM Hybrid Series [Parallel]
P-bass neck and Music Man bridge wired in series for a massive wall of sound with immense low-mid thrust and heavy overdrive sustain.
Progressive & Classic Rock Legends
09. Rickenbacker 4003 [Bridge]
The quintessential prog-rock clank (Chris Squire / Geddy Lee). Tight, lean low end with biting, aggressive pick attack and cutting upper-mid grit.
10. Dingwall FD3 [Bridge]
Modern progressive metal tone: razor-sharp pick clank, extreme note clarity, and piano-like low-B definition tailored for drop tunings and heavy distortion.
11. EB-0 Mudbucker [Neck]
The legendary Gibson "Mudbucker": a dark, colossal wall of pure vintage bass rumble with zero top-end harshness—pure '60s and '70s British blues-rock.
Acoustic Transducers
12. Upright Piezo [Neck]
Acoustic upright double bass: transforms your electric bass into a woody, resonant acoustic upright with natural body thump and organic finger feel. Pair with 3 Sigma Audio "Acoustic Upright Standard" AST IRs in your cabinet loader for authentic soundboard acoustic bloom.
Precision Bass & Tone Shaper Family
13. Modern P Ceramic [Neck]
Modern boutique P-bass tone. Aggressive, punchy, and clear with tight low-mids and bright transient snap—built for aggressive rock, pop, and modern worship.
14. Vintage 62 P 22nF [Neck]
Vintage P-bass with a modern vocal low-mid punch. Cuts finger clatter and high-end sizzle while keeping a muscular, forward presence in a busy mix.
15. Vintage 62 P 47nF [Neck]
The legendary Motown flatwound sound (James Jamerson / Pino Palladino). Fat, pillowy sub-bass thump with rolled-off highs that glues the groove together.
16. Vintage 50s P 100nF [Neck]
Ultra-deep vintage '50s dub spec. Pure, earth-shaking sub-bass thump with zero top-end click—perfect for reggae, dub, hip-hop, and classic R&B.
P/J Bass Family
17. Modern PJ Active [Parallel]
Modern active P/J punch (Sadowsky/Spector style). Combines thick split-coil body with bridge single-coil cut, boosted by a powerful active 2-band EQ.
Studio Buffers & Dynamics
18. Active Character
Studio Active Buffer: removes cable drag and pot loading, opening up pristine hi-fi clarity, ultra-fast transient attack, and airy top-end sparkle.
19. Passive Character
Vintage Passive Character: stacks organic vintage tube-amp warmth, tactile touch sensitivity, and woody harmonic bloom onto your signal chain.
LICENSE & DISCLAIMER
License:
Licensed for personal and commercial musical performances, recording, and production. Redistribution, sublicensing, or resale of raw model files or derived profiles without permission is strictly prohibited.
Trademark Disclaimer:
All product names, trademarks, and registered trademarks (such as Fender, Precision Bass, P-Bass, Jazz Bass, J-Bass, Music Man, StingRay, Sterling, Rickenbacker, Gibson, Dingwall, Bartolini, Sadowsky, Spector, ToneStyler, EMG, and Darkglass) are the property of their respective owners. Used solely to identify historical instruments and analog circuits analyzed in this project. Allomorph is an independent project and is not affiliated with or endorsed by any of these manufacturers.
