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Neumann KH 420 - Loudspeaker Orientation and Positioning; Acoustical Axis Reference Point; Cabinet Orientation Guidelines; Vertical Plane Aiming and Obstructions

Neumann KH 420
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Getting Started Quickly
Free standing
In a corner
Acoustical controls
Against a wall
Bass = -5 dB
Bass = -2.5 dB
Bass = -7.5 dB
Solid:
Soft:
Reflections
Mid = -1.5 or -3 dB
Treble = -1 dB
Bass = -2.5 dB
All 0 dB
Live:
Dead:
Flush mounting
Wall should be heavy: bricks, concrete,
or multiple layers of gypsum or MDF
Use Remote Electronics Kits to remotely
locate the electronics panels
Mechanically isolate the cabinets from
the structure using vibration isolators
Not recommended cabinet
orientation
Recommended cabinet
orientation for a wide
usable listening area
Acoustical axis and cabinet orientation
Use acoustical axis
as a reference point
Distance from the wall
f
n
Full Range Loudspeakers
Bass Managed Loudspeakers
Avoid d
wall
= 0.8 – 2.0 m
Avoid d
wall
= 0.8 – 1.0 m
Subwoofers Avoid d
wall
= >0.8 m
d
wall
d
wall
x cm
y cm
Avoid reflections for a smooth midrange
Vertical plane: Point the loudspeakers at the listening position.
Avoid objects between the loudspeaker and listening position.