Technical Specifications; Glossary - VINCENT SA-31 Manuel D'utilisation

SEARCH FOR ERRORS
Symptom Possible Cause
The source equipment is giving signal on only
No audio playback
one channel.
on one channel
One of the signal cables between audio sour-
ce and preamplifier inputs has not yet been
plugged in or is defective.
One or more audio signal cables between
pre- and main amplifier are defect or one of
the plug connections is loose.
One of the speaker cables is not correctly con-
nected to the main amplifier or is defective.
The cable connections are not tight, the con-
Poor sound quality
nectors are dirty or a cable is defective.
The tone settings on the dials "TREBLE" or
"BASS" have not been selected correctly.
A record player has been connected to a line
level input without using a phono preamplifier.
See section "Net frequency noise"
Humming low fre-
in the chapter "Tips".
quency noise is
audible, even as
no audio source is
playing back

TECHNICAL SPECIFICATIONS

Frequency response:
Nominal Output Voltage:
Total Harmonic Distortion:
Input sensitivity:
Signal to Noise Ratio:
Input Impedance:
AC power connection type:
Inputs:
Outputs:
Dimensions:
Weight:
Colour:
Tubes:
30 Vincent
Countermeasure
Check the audio source. You can try to use it
at a different amplifier for a test.
Check the cable connections, tighten them if
necessary.
Check and tighten all cable connections.
Check and refasten the speaker cables at the
speaker terminal of the main amplifier and at
the speaker's connectors.
Check the cables and cable connections.
Check the settings selected there.
Interconnect a phono preamplifier.
See section "Net frequency noise"
in the chapter "Tips".
20 Hz - 20 kHz ±0.5 dB
2 V
< 0.1% (1 kHz, 1 W)
150 mV
> 90 dB
47 kΩ
230 V/50 Hz
4 x RCA stereo (LINE IN)
2 x RCA stereo (PRE OUT),
1 x RCA stereo (REC OUT)
430 x 80 x 300 mm
4.5 kg
silver / black
2x 6N16B

GLOSSARY

Audio Sources/Source devices
These are the components of your HiFi system and
all other appliances, whose sound you want to hear
over the system and are thus connected to the pre-
amplifier, amplifier or receiver. This includes CD
players, DVD players, tuners (radios), cassette play-
ers, DAT recorders, personal computers, record play-
ers, portable audio devices and many more.
Input sensitivity
Term for the smallest average (RMS) input voltage
which causes the maximum output power at the
maximum volume setting on the amplifier.
Examples: 100 mV to 500 mV (Millivolts) on line
level inputs, 2 mV to 5 mV on the phono MM input
or 0.1 mV to 0.5 mV on the phono MC input.
dB Level
This is a way of describing any physical quantity; it
is a common measurement for signal voltages and
the volume. It is given in decibels (dB). Alternating
signal voltages below 1V (RMS) are described as
"line level" voltages, which are suitable as music
signals for amplifier inputs. Inputs on amplifiers
(mostly represented by RCA sockets), which are desi-
gned for signals on the CD player, tape recorder,
DVD player etc. are also referred to as "line level
inputs". Those signal inputs must not be confused
with inputs that accept preamplified signals.
RCA
RCA is the American name for a type of coaxial
connectors and sockets, originally the abbreviati-
on for "Radio Corporation of America", the name
of a United States company. Both the plug and
cable consist of a rod-shaped inner lead and a
cylindrical-shaped outer lead. This enables a
mono audio signal or a video signal to be trans-
mitted. Compared to the XLR plug connector, this
type of connection is also called "unbalanced
signal connection".
Dynamics
The volume difference between the quietest and
the loudest sounds possible in audio signals, wit-
hout distortion or transition to noise.
Vincent 31