Samson MPL 1502 User Manual

• For single-fader control over a pair of matched signals (i.e. the left-right out-
puts of a stereo effects processor, keyboard, drum machine, tone generator,
CD player, or tape recorder), use the MPL 1502’s stereo input channels (6/7,
8/9, 10/11, 12/13, and 14/15). The Balance control in these channels will
allow you to adjust the relative levels of the two inputs, and you can also
equalize the stereo signal, with the same EQ settings applied to both inputs.
• There are two more “hidden” (or at least not so obvious) stereo inputs to the
MPL 1502; these are the Auxiliary returns. Use these whenever you want to
bring in a stereo signal that will not need to be equalized. Also bear in mind
that the two stereo Auxiliary returns can also be used as four monophonic
returns, with the Aux Balance controls giving you the ability to adjust the
relative levels of the left/right inputs. If you’re using the MPL 1502 in live
performance to drive a mono PA system, you may not need to take the
stereo returns from outboard effects processors.
• When connecting only one monophonic signal to a stereo channel, always
use the left (even-numbered) input. When only the left input is connected in
a stereo channel, the MPL 1502 treats that channel as if it is a mono channel
and the signal can then be panned (using the Balance control). See the
“Using Pan/Balance” and “Using the Aux Sends And Returns” sections in
this manual (pages 18 and 20) for more information.
11
6 / 7 8 / 9 10 / 11 12 / 13 14 / 15
LEFT/MONOLEFT/MONOLEFT/MONOLEFT/MONOLEFT/MONO
RIGHT RIGHT RIGHT RIGHT RIGHT
LINE INPUT (BALANCED 10KΩ -30dB TO +4dB)
RIGHT
LEFT/MONO
RIGHT
LEFT/MONO
2
1
AUX RETURN
(UNBALANCED 2KΩ +4dB)
Connecting The MPL 1502 - General Suggestions
6 / 7 8 / 9 10 / 11 12 / 13 14 / 15
LEFT/MONOLEFT/MONOLEFT/MONOLEFT/MONOLEFT/MONO
RIGHT RIGHT RIGHT RIGHT RIGHT
LINE INPUT (BALANCED 10KΩ -30dB TO +4dB)
Use even-numbered inputs when
connecting monophonic signal to a
stereo channel.

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