Yamaha QL5 Reference Manual

Graphic EQ, Parametric EQ, effects, and Premium Rack
Reference Manual
146
 Buss Comp 369
Buss Comp 369 emulates a standard bus compressor that has been used in recording studios
and broadcasting stations since the 1980s. It produces a smooth and natural compression
that does not interfere with the expression in the source signal, in contrast with the aggressive
compression of the U76. Buss Comp 369 includes both a compressor and a limiter. You can
use both functions individually or in combination, according to your needs. Further, the rich
overtones generated by the audio transformers on the input/output circuits and the discrete
Class A amplifier add depth and unity to the sound quality.
STEREO mounting
DUAL mounting
1 INPUT ADJUST
Used to adjust the input gain. However, the output gain is linked to change in the
opposite direction, to prevent changes in pass-through volume (the volume when
COMP IN and LIMIT IN are off). For example, if INPUT ADJUST is +5dB, the input gain
is +5dB and the output gain is -5dB.
See below for more information about how to use INPUT ADJUST.
• If the level of the input signal sent to effects is too low to reach the threshold,
increase the input gain.
• Adjust the sound quality by changing the input level sent to the input circuitry (audio
transformer and Class A amplifier).
INPUT ADJUST structure
2 LINK (STEREO mounting)
Stereo link on/off
3 COMP IN
Compressor on/off
4 COMP THRESHOLD
Compressor threshold. However, the changing value is linked to INPUT ADJUST.
5 COMP RECOVERY
Compressor release time. The release times for a1 (auto 1) and a2 (auto 2) change
automatically. a1: Changes automatically between 100 ms and 2 sec. a2: Changes
automatically between 50 ms and 5 sec.
31
8>ABC
42567
1
9>ABC
43567
dBFSdBFS
COMPTHRESHOLD LIMITTHRESHOLD
BussComp369
COMPRESSOR/LIMITERSECTION
INPUT
CIRCUIT
OUTPUT
CIRCUIT
OUTPUTGAININPUTGAIN
INPUTADJUST
COMPRESSOR LIMITER
OUT OUT
IN IN
Since there are substantial changes in threshold, the changing display
values are linked. However, the internal conditions of the COMPRESSOR/
LIMITER SECTION do not actually change.
Linked in reverse

Yamaha QL5 Specifications

General

DJ mixer	-
Product color	Black
Video capability	No
Channels quantity	72 channels
Supported sample rates	44.1, 48 kHz
Digital sound processing	- bit
Phantom power	48 V
AC input voltage	100-240 V
AC input frequency	50 - 60 Hz
Power consumption (typical)	200 W
Total Harmonic Distortion (THD)	0.05 %

Weight and Dimensions

Depth	563 mm
Width	828 mm
Height	272 mm
Weight	21800 g