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PAJA Pickup Builders are professional desktop tools with hundreds of configurable options.
For the best building experience, please use a desktop or laptop computer.
First, pick your pickup!
THE CHOSEN ONE
Customize your components
Fine-tune the details
YOUR CUSTOM BUILD
TONE LAB
Explore how every detail shapes your tone.
Then break the rules and make it yours.
Foundations
Core principles behind pickup tone.
Rule #1 โ Be creative and enjoy the process.
You donโt need to master the theory. Follow the builder and its tooltips โ everything is designed to guide you.
Tone doesnโt come from a single component.
Itโs the interaction between magnetic field, coil behavior, and physical structure.
Core elements
Output โ Better
Control
Small changes are not small. Every adjustment shifts feel, response and character.
Quick direction
- More clarity โ Coil
- More punch โ Magnet
- More stability โ Structure
This is where tone becomes something you can shape.
Not guess. Not chase. Shape.
Bobbins
Structure, spacing and materials.
The bobbin defines structure and alignment.
It controls spacing, fit and how the pickup interacts with your strings.
What it actually does
The bobbin holds the coil, defines string spacing and determines the physical dimensions of the pickup. It affects both installation and how accurately the magnetic field aligns with the strings.
Materials
- classic look and feel
- slightly softer structure
- used in vintage-style pickups
- durable and consistent
- tight tolerances
- widely used in production pickups
- excellent weather resistance
- wide color options
- high structural stability
3D printed bobbins
ASA is a durable modern material with excellent UV and weather resistance. It also allows a much wider range of visual customization compared to traditional pickup materials.
- excellent durability and stability
- consistent manufacturing quality
- wide range of color possibilities
This combines modern manufacturing with classic pickup design principles.
String spacing
Spacing determines how the pickup aligns with your strings. Incorrect spacing can lead to uneven response and volume differences.
- Neck โ ~48โ50 mm
- Middle โ ~50โ52 mm
- Bridge โ ~52โ54 mm
Always match spacing to your guitarโs bridge and string spread.
Single coil vs humbucker
Things to consider
Takeaway
- Want vintage style โ Fibre
- Want durability โ Molded plastic
- Want customization โ 3D printed
- Always match spacing โ to your guitar
The bobbin defines how everything fits and aligns.
Precision here affects everything else.
Magnets
Magnetic field defines your signal.
The magnet doesnโt just affect tone.
It defines how your playing feels.
What it actually does
The magnetic field captures string movement and turns it into signal. Its strength, shape and material define attack, response and dynamics.
Two directions
- warmer attack
- more dynamic range
- โbreathesโ with your playing
- faster attack
- tighter low end
- higher output
Feel difference
Magnet structure
AlNiCo grades
Pole top shape
Magnet dimensions
Polarity
North up vs south up doesnโt change tone alone โ but it matters when combining pickups.
This is where phase relationships and hum cancellation come into play.
Things to consider
Uniform vs Individual configuration
Steel slugs
In bar magnet pickups, the steel slugs transfer magnetic energy from the bar magnet to the strings.
Takeaway
- Want feel and dynamics โ Alnico
- Want tightness and output โ Ceramic
- Want articulation โ Pole magnets
- Want smooth balance โ Bar magnet
The magnet is where tone becomes feel.
Choose how your pickup responds to you.
Coil
Wire type, turns and response.
The coil defines your voice.
It shapes output, clarity and how your tone sits in the mix.
What it actually does
The coil converts string movement into electrical signal. Wire type, number of turns and winding pattern define output, frequency response and compression.
Output direction
- more high-end detail
- less compression
- more headroom
- higher output
- reduced highs
- more mid focus
Feel difference
Wire type
- tight low end
- clear top-end
- modern response
- softer attack
- warmer top-end
- classic feel
- slightly reduced highs
- stronger midrange
- rounder response
Insulation affects how tightly the coil packs โ subtly changing capacitance, response and feel.
Mixed wires
You can combine different wire types.
This allows fine control over tone and response.
- blend clarity and warmth
- shape midrange response
- fine-tune attack and feel
- coil density and structure
- capacitance and frequency balance
- overall responsiveness
Wire gauge (AWG)
- lower resistance per turn
- clearer highs
- more dynamic response
- more output than 42
- smoother top-end
- more mid presence
- higher resistance per turn
- more compression
- stronger mid focus
What it really changes
Thinner wire allows more turns in the same space. More turns increase output โ but also shift the frequency response and reduce openness.
Winding approach
Every PAJA INSTRUMENTS pickup is scatter wound.
No uniform layers. No mechanical repetition. Just controlled variation.
- richer harmonic content
- less sterile high-end
Perfect consistency isnโt always the goal โ musical response is.
DC resistance
Often used as a reference โ but it doesnโt tell the full story. Two pickups with the same resistance can sound very different depending on wire type and winding.
Use it as a guideline, not a rule.
Winding direction
The coil can be wound clockwise or counterclockwise. On its own, this does not significantly change the tone โ but it becomes critical when combining pickups.
Winding direction works together with magnet polarity โ neither should be considered alone.
Things to consider
Takeaway
- Want clarity and dynamics โ Lower wind
- Want power and thickness โ Higher wind
- Want vintage feel โ Plain enamel
The coil shapes how your tone speaks.
Choose how much it says โ and how loud.
Cover
Materials, shielding and aesthetics.
The cover shapes protection, appearance and response.
Itโs the outer layer โ but not just cosmetic.
What it actually does
The cover protects the pickup and defines its visual identity. Depending on the material, it can also slightly influence high-end response and shielding.
Cover types
- no tonal coloration
- lightweight and durable
- classic single coil look
- can slightly reduce high-end
- adds shielding
- classic humbucker style
- visual customization
- non-standard designs
- can affect response depending on material
3D printed covers (ASA)
3D printing allows full control over shape, structure and color. It enables designs that are not possible with traditional molded parts.
- wide color range
- custom geometries
- consistent fit and repeatability
Ideal for unique builds and visual matching with the rest of the instrument.
Tone impact
The effect is subtle โ but noticeable in sensitive setups.
Things to consider
Takeaway
- Want clarity โ Plastic / open
- Want vintage tone โ Metal
- Want unique design โ Custom / 3D printed
The cover finishes the pickup โ visually and functionally.
Choose how it looks, and how it subtly responds.
Wax potting
Stability and microphonic control.
Wax potting controls stability.
It defines how much the pickup moves โ and how much it reacts.
What it actually does
Wax potting fills air gaps inside the coil using molten paraffin wax. This stabilizes the internal structure and reduces unwanted movement.
Without potting, the coil and components can vibrate โ creating microphonic behavior.
Potting levels
- most dynamic and alive
- can be microphonic
- reacts to environment
- reduced microphonics
- keeps dynamics intact
- balanced response
- minimal microphonics
- tight and focused
- less โairโ in response
Feel difference
Things to consider
Material
Paraffin wax is used to stabilize the coil without permanently altering its structure. It provides effective control while maintaining the natural tonal character of the pickup.
Takeaway
- Want maximum openness โ Unpotted
- Want balance โ Light potted
- Want full control โ Full potted
Wax potting defines how stable your tone is.
Choose between control โ and openness.
Output wires and mounting hardware
How your pickup connects, fits and functions.
Output wires define how your pickup connects to the guitar.
Mounting hardware defines how it fits and adjusts.
Wire types
- no stripping needed
- flexible and traditional
- classic look
- more resistant to wear
- clean and consistent
- requires stripping
Wire length
Default length is 24 cm, but each wire can be customized depending on your guitar and routing.
- Strat bridge โ ~20โ25 cm
- Strat neck โ ~30โ35 cm
- Tele bridge โ ~20โ25 cm
- Les Paul bridge โ ~25โ30 cm
- Les Paul neck โ ~35โ45 cm
Always consider routing paths โ internal wiring length is not just straight distance.
Hot & Ground
Correct grounding is essential for noise-free operation.
2 vs 4 conductor
- hot + ground only
- standard wiring
- no coil splitting
- coil split / tap options
- phase switching
- series / parallel wiring
Choose 4-conductor if you want advanced wiring options โ even if you donโt use them immediately.
Mounting screws
Always match screw type to pickup threads โ they are not interchangeable.
Height adjustment
- stable over time
- less rattling
- traditional feel
- quick height changes
- stronger pushback
- modern standard
Things to consider
Takeaway
- Want simplicity โ 2-conductor
- Want flexibility โ 4-conductor
- Vintage feel โ Cloth wire + tubing
- Modern setup โ PVC + springs
Fit, wiring and control define the final result.
Pickup height & setup
How pickup height affects output, feel and overall response.
Pickup height changes everything.
It affects output, clarity, dynamics and feel โ more than most components.
What it actually does
Pickup height controls how strongly the magnetic field interacts with the strings. This directly affects output level, attack and sustain.
Height direction
- higher output
- faster attack
- more compression
- lower output
- more clarity
- more natural dynamics
Magnetic pull
If pickups are too close, the magnetic field can pull on the strings. This can reduce sustain and cause tuning instability.
Balance adjustment
Starting points
Middle: ~2.0โ2.5 mm
Bridge: ~1.5โ2.0 mm
Bridge: ~1.5โ2.0 mm
Measurements are taken from the string to the pole piece while fretting the last fret.
Interaction with design
Pickup height works together with magnets and coil. A strong magnet or high-output coil may require more distance to stay clear and dynamic.
Things to consider
Takeaway
- Closer โ more output, more compression
- Further โ more clarity, more dynamics
- Balance both sides โ even response
- Always fine-tune โ by ear
This is where your pickup comes to life.
Set it right โ and everything else makes sense.
Combining pickups
How pickups interact, cancel noise and work together.
Pickups donโt exist in isolation.
When combined, they interact โ shaping tone, phase and noise behavior.
What changes when combining pickups
When two or more pickups are active, their signals interact. This affects output, frequency response, phase and noise cancellation.
Phase
Phase depends on both winding direction and magnet polarity.
Hum cancelling (RWRP)
Noise is cancelled when two pickups have:
- opposite winding direction
- opposite magnetic polarity
This is known as Reverse Wound, Reverse Polarity (RWRP).
Typical example
Humbucker principle
A humbucker uses two coils with opposite winding and polarity to cancel noise while keeping a full signal.
Coil split
One coil is turned off, leaving a single coil active. This gives a brighter, more open tone โ but removes hum cancelling.
Dummy coil
A dummy coil cancels noise without acting as a full pickup. It allows single coil tone with reduced hum โ but always with some tonal impact.
The goal is balance: enough winding to cancel hum, but not enough to dominate the tone.
Things to consider
- same winding + same polarity โ no hum cancelling
- opposite winding but same polarity โ out-of-phase sound
Takeaway
- Want full sound โ keep pickups in phase
- Want noise reduction โ use RWRP
- Want flexibility โ use 4-conductor wiring
- Want hum-free single coil feel โ use humbucker or dummy coil
Great tone isnโt just one pickup.
Itโs how they work together.
THE CHOSEN ONE
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