
ReValver Cabinets
Cali Basic 215 (T)
Inspired by Fender® Bass 2x15 (Top Speaker)
2x15" Speaker
Type: 2x15 Bass Cabinet (Top variant)
Voicing: deep + more defined
Answer: sub bass + more attack than (B)
Key Difference:
Controls
Gain (dB)
Microphone level
- Range: -12 → +12 dB
Mic Dist (inch)
- 0–1” → attack
- 2–3” → natural (sweet spot)
- 4”+ → more sub
- recommended -> 2–3”
Mic Axis (On/Off)
- On-axis → more attack
- Off-axis → softer
Low (dB)
- 3 / -2 dB → tight
- 0 dB → neutral
- +2 / +3 dB → huge
- be careful -> it can become unmanageable
High (dB)
- 2 / -1 dB → vintage
- 0 dB → neutral
- +1 / +2 dB → attack and clarity
Delay (ms)
Phase alignment
- Range -> 0–20 ms
- single mic -> 0 ms
Ambience (Y/N)
- ON → bigger
- OFF → direct
Amb Level (dB)
- 30 → -10 dB → light
- 10 → 0 dB → noticeable
Amb Size (ms)
- 20–40 ms → room
- 40–80 ms → large
Suggested Microphones
Capacitors:
- 4047 SV (LC)
- 4047 SC
- 4060
- 414B (150Hz C)
- 414B (75Hz C)
- 414B (Card)
- 414B (Omni)
- U87 (C)
- U87 (Fig 8)
- U87 (LC C)
- U87 (LC Fig 8)
- U87 (LC O)
- U87 (Omni)
Ribbons:
Dynamic:
Others:
- CMT 55 (C)
- CMT 55 (O)
- Rezio
- MD421 (LC1) → punch (TOP)
- Rezio → modern
- U87 (C) → depth + definition
- SM57 → attack
Setup Examples
ROCK / LIVE (TOP)
MicMD421
Distance2.5”
AxisON
Low+1 dB
High+1 dB
AmbienceOFF
Deep but readable
MODERN (more defined)
MicREZIO
Distance2"
AxisON
Low-1 dB
High+2 dB
More attack
WARM / VINTAGE
MicR121
Distance3"
AxisOFF
Low+2 dB
High-1 dB
Soft
HI-FI / STUDIO
MicU87
Distance3–4”
AxisOFF
Low+1 dB
High+1 dB
AmbienceON
Natural

