227e

System Interface

Buchla · 2 slots · Buchla, 7 inches

SYSTEM
INTERFACE
MODEL
227e
MASTER
EQUALIZATION
&
LEVELS
BUCHLA & ASSOCIATES
BERKELEY
CALIFORNIA
MAIN
OUT-
PUTS
SUB-
MIXER
MIKE
PREAMP
A
B
C
D
A
B
C
D
SPATIAL
DYNAMICS
A
B
C
D
SPATIAL
DYNAMICS
A
B
C
D
SPATIAL
DYNAMICS
A
B
C
D
SPATIAL
DYNAMICS
A
B
C
D
spectral tilt
sig in 1
sig in 2
sig in 3
sig in 4
remote
enable
front
levels
rear
front
rear
head-
phones
output
in
the
mix
signal
inputs
bass
treble
front
rear
signal
output
over-
load
norm
low
envelope
out
preamp
gain
swirl
rate
ampl
swirl
rate
ampl
swirl
rate
ampl
swirl
rate
ampl
10
25
40
4
6
0
10
4
6
0
10
4
6
0
10
4
6
0
10
4
6
0
10
-3
+3
-15
+15
-6
0db
-18
+12
-3
+3
-15
+15
-3
+3
-15
+15
-6
0db
-18
+12
-3
+3
-15
+15
4
6
2
8
0
10
4
6
2
8
0
10
4
6
2
8
0
10
4
6
2
8
0
10
4
6
2
8
0
10
4
6
2
8
0
10
4
6
2
8
0
10

Panel · 215.9 × 177.8 mm

Description

Buchla's 227e System Interface, a 200e series module two panel units wide: the last stage before the sound system, four spatialised inputs, a sub-mixer, a microphone preamp, equalization, levels and headphones.

Key features

  • Four primary inputs, each placed in a quadraphonic space (A-B front, C-D rear) by its rate and ampl knobs and voltages, or swirled round the listening space under voltage control
  • A four-input sub-mixer with its own output, optionally in the main mix
  • Front and rear equalization (bass, spectral tilt, treble) and master levels, with level meters on each channel
  • A microphone preamp with an envelope out, its level shown, its gain in 15 dB steps
  • Headphones on the front, rear or all channels; every mode kept in the patch

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