84 J-120H
The model 84 J-120H is a versatile amplifier designed for rock, blues and fusion, with built-in effects and detailed controls for modulating the sound:
- Integrated chorus with adjustable depth and speed
- Reverb for spatiality
- Adjustable distortion
- Full EQ controls to tailor your tone
Ideal for single coil and humbucker guitars, both in the studio and live.
Controls
Controls the main high frequencies:
- Low → smooth sound
- High → bright and cutting
Control the mid frequencies:
- Low → natural scoop
- High → more body and presence
Control the low frequencies:
- Low → tight and controlled
- High → full and powerful
Secondary high frequency control for fine adjustments
Controls the overall level of the amp:
- Low → less pressure
- High → more body and punch
Depth of the chorus effect:
- Low → light effect
- High → strong modulation
Chorus speed:
- Low → slow and soft
- High → faster and rhythmic
- Fixed → effect always active
- Off → chorus bypassed
- Manual → adjustable with Depth and Rate parameters
- Y → stereo output for spatial effect
- N → mono
Reverb depth:
- Low → light effect
- High → more ambient and spacious sound
Amplifier saturation:
- Low → clean / light crunch
- High → full and powerful distortion
Controls the final volume:
- Negative → attenuation 0 d
- B → neutral
- Positive → boost Does not alter the timbre
Pro Tips
BEHAVIOR OF THE AMPLIFIER
- Versatile sound for clean, crunch and lead
- Adjustable chorus for vintage or modern textures
- Controlled and modulatable distortion
- Reverb adds spatiality without muddying
Advice:
- Hi Treble + Treble → brilliance and cut
- Mid + Bass → body and punch
- Chorus Depth + Rate → delicate or strong effect
- Distortion → adjusts the saturation for clean, crunch or lead
Final advice:
- Clean → Moderate Hi Treble + Light Chorus
- Crunch → Distortion 40–50% + Chorus + Reverb
- Lead → High Distortion + Chorus Depth + Stereo
- Perfect for rock, blues, fusion and spacious ambient
Setup Examples
Bright clean / light chorus
Crunch / rhythmic chorus
Lead / spatial effect
The Edge – “Ambient Delay/Chorus”
Description: Clear, spatial and bright sound, perfect for U2-style delays and ambient modulations.
John Mayer – “Warm Blues Clean”
Description: Soft clean, slightly bright, ideal for blues and fingerstyle rhythms with natural dynamics.
Andy Summers – “Textured Chorus/Chime”
Description: Bright sound, clean arpeggiated sounds with chorus and reverb to create complex Police-style textures.
Quick Tips:
- The Edge → high chorus + stereo → maximum spatial effect
- John Mayer → light chorus + moderate reverb → warm and dynamic sound
- Andy Summers → medium chorus + stereo + reverb → texture and chime