Samson MPL 1502 User Manual

Guided Tour - Main Section
1: Meter - This seven-segment bar meter shows the continuous output level of
the main stereo output. For optimum signal-to-noise ratio, try to adjust all levels
so that program material is usually at or around 0 VU, with occasional but not
steady excursions to the red +2 or +6 segments. See the “Setting the Correct
Gain Structure” section on page 14 for more information.
2: Meter LEDs - These show the status of various conditions within the MPL
1502. The left LED (labeled “Phantom”) lights steadily red when phantom power
is being supplied to all 5 mic inputs (see the “Guided Tour - MPL 1502 Rear
Panel” section on page 8 for more information). The right LED (labeled “Power”)
lights steadily red when the MPL 1502 is powered on.
3: Tape In / Channel 14/15 switch - When pressed in (the “on” position), the
signal arriving at the rear panel tape inputs is automatically routed to stereo
channel 14/15, with the signal connected to the channel 14/15 line inputs
disconnected and the channel 14/15 Trim control made inactive (the tape input
signal is automatically given unity gain). When this switch is out (the “off”
position), channel 14/15 operates normally and the tape input signal is not heard.
6
−∞
+15
−∞
−∞
-20 -10 -6 -2
0+2+6
-20 -10 -6 -2
0+2+6
15 CHANNEL STEREO MIXER
MPL 1502
+20
AUX 1 LEVEL
0
RL
BALANCE
RL
BALANCE
+20
AUX 2 LEVEL
0
CHANNEL 14 / 15
OFF
ON
TAPE IN
PHANTOM POWER
LEFT
RIGHT
HEADPHONE
LEVEL
010
MAIN
0
1
2
3
4
5
6
7
8

Samson MPL 1502 Specifications

Audio Specifications

frequency response	17 Hz to 30 kHz ± 1.5 dB at +4 dB
equivalent input noise channel 1-5 mic input	-128 dB (A filter, 150 Ω shorted)
equivalent input noise channel 1-15 line input	-131 dB (A filter, input shorted)
total harmonic distortion + noise	Less than 0.03 %
input level channel 1-5 mic input	-50 dBV to +4 dB (10 kΩ, balanced XLR)
input level channel 1-15 line input	-40 dBV to +14 dB (10 kΩ, balanced stereo phone jack)
input level aux return 1-2	+4 dB (47 kΩ, unbalanced phone jack)
maximum input level channel 1-5 mic input	+17 dB
maximum input level channel 1-15 line input	+27 dB
trim gain range	0 dB to +54 dB
channel fader range	+15 dB to -80 dB
aux send gain range	+10 dB to -75 dB
crosstalk ch-to-ch (1 kHz)	-80 dB
crosstalk stereo ch L/R (1 kHz)	-65 dB
standard output level main out	+4 dBV (balanced, 600 Ω loaded)
standard output level aux out	+4 dBV (unbalanced, 2.2 kΩ loaded)
standard output level headphones	150 mW (30 Ω loaded)
maximum output main out	+22 dBV (balanced, 600 Ω loaded)
maximum output aux out	+22 dBV (unbalanced, 2.2 kΩ loaded)
maximum output tape out	+22 dBV (unbalanced, 600 Ω loaded)
tone control high	10 kHz ± 15 dB
tone control mid	800 Hz ± 12 dB
tone control low	80 Hz ± 15 dB

Weight and Dimensions

dimensions	13.8 in (w) x 10.4 in (d) x 3.2 in (h)
dimensions metric	350 mm (w) x 264 mm (d) x 82 mm (h)
weight	7.7 lbs • 3.5 kg