
ReValver Microphones
MD421 (LC1)
Inspired by Sennheiser® MD421 (Bass Roll-Off Switch 1)
Model: Sennheiser MD 421
acronym:
- LC1 = Low Cut level 1 (minimum cut) therefore: almost full-range only slight control on the lows
SOUND CHARACTER
- low full and deep
- medium round
- high softer than the SM57
- answer very musical
in practice: fuller than the SM57 less aggressive more "study"
TIMBRIC PERSONALITY
it's a mic:
- full-bodied
- heat
- natural
- slightly smooth
perfect for: hard rock rhythmic full lead
rockhard rockrhythmic
Controls
Axis Interaction
- ON-axis → more attack
- OFF-axis → softer
here: ON = definition OFF = more vintage
Gain (dB)
- volume only
Mic Distance (inch)
- Distance 0–1”: very full
- Distance 1–2”: punch + body
- Distance 2–4”: balance
- Distance >4”: natural
Low (dB)
IMPORTANT PARAMETER
- bass already abundant
use:
- 0 → natural
- 1 / -2 → tighter
High (dB)
use:
- 0 → natural
- +1 → more presence
- rarely beyond
Delay (ms)
useful for: depth multi-mic combinations
Ambience (Y/N)
optional
Amb Level (dB)
- low → natural
Amb Size (ms)
- 40–80 → study
Pro Tips
QUICK SUMMARY
- type: dynamic
- character: full / warm
- strength: body
- risk: excessively low
ON DARK CAB (PPC, Orange)
be careful → it may become too full
solution:
- low -1
- axis ON
ON MODERN CABs (VHIII, 6505)
PERFECT adds body
ON VINTAGE CAB
excellent big sound
ON HI-FI CAB (TVX, SW Giant)
very useful adds “guitar feel”
PRO
very full very musical perfect for rock excellent complement to the 57
AGAINST
less defined can be muddy less sharp in the mix
Setup Examples
CLASSIC ROCK (TOP)
Dist1–2”
AxisON
Low-1
High0
- full and defined
HARD ROCK
Dist1–2”
AxisON
Low0
High+1
LEAD
Dist2–3”
AxisOFF
High+1
Amblight
STUDIO (layer with SM57)
- 57 = attack 421 = body

