Rolls MA258 Connection Manual

WARNING:
THE MINIMUM SPEAKER IMPEDANCE IS 4
OHMS.
IF YOU CONNECT AND USE THE MA258 WITH A LOWER
SPEAKER IMPEDANCE THAN 4 OHMS YOU WILL DAM-
AGE THE UNIT AND POSSIBLY OTHER EQUIPMENT
THAT IS CONNECTED TO THE MA258.
SPECIFICATIONS:
Line Input Impedance:
Power Output:
Voltage Gain:
Maximum Supply Voltage:
THD:
EIN:
Efficiency:
Input Sensitivity:
Bandwidth:
+Size:
Weight:
Salt Lake City, Utah
11/17
10K Ohms
20 Watts X 2 (4 Ohms)
30 dB Line
24 VDC
.05% typical
3 mV
85%
28 mV
20Hz - 25 kHz +/- 3dB
6.75" x 3.5" x 1.5"
1.6 lb.
75889 02580
6
With Headphone Amp
MADE IN USA
PWR
www.rolls.com
MA258
20 + 20 WATT AUDIOPHILE AMP
PHONO IN 2
• Audiophile preamp - amplifier
• Built in Headphone Amplifier
PS12
+
• Low noise, efficient operation
LEFT
• Small compact size BOTH OUTPUTS MUST BE USED
• Class D high efficiency amp
4
MA251
CLASS AMP
5 + 5 WATT MIX/AMP
MA258
20 + 20 watt
Audio Amplifier
HEADPHONE
- -
+
0 10
VOLUME TREBLE
SPEAKER OUTPUTS
MA258
+
RIGHT
- -
+
R
R
MUTE
RIGHT
L L
CH 2
MONO LINE CH 3
INPUT OUT INPUT
Connection guide
CH 4
3.5mm
CH 4 CH 3
STEREO LEVEL LEVEL
INPUT
SELECTOR
IN 1
PHONO
CH2 CH1
+
BASS
ROLLS
PS24
- -
+
LEFT
R
CH 1
INPUT
L
ON - OFF
PHANTOM
CH 2
POWER
INPUT
CH 1
CH 2
LEVEL LEVEL