Rolls MA2355 Bruksanvisning
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MA2355
Mixer / Ampli er
Quick Start Guide
ROLLS CORPORATION
SALT LAKE CITY, UTAH
5/12
0
RIG
H
0 10
LEFT OUTPUT
pwr clip
MIC TWO
tone
0 10
MIC ONE
tone
0 10
SOURCE
THREE
0 10
SOURCE
TWO
0 10
SOURCE
ONE
IN
1
0 10
BASS
- +
TREBLE
- +
0
10
HT OUTPUT
clip
MA2355
Mixer /
Amplifier
MIXER
Input Impedance: Mic: 600 Ohms XLR balanced
Source:
22K
Ohms
RCA
Insert: 22K Ohms 1/4” TS unbal.
Max Input Level: Mic: -14 dBV Mic level Max
Source: 24 dBV
Insert: 24 dBV
Connectors: 2: XLR, 6: Stereo RCA, 3: 1/4” TRS,
1: 1/4” TS, 1: 1/8” (3.5mm) TRS
Phantom Power: +12 VDC
Max Gain: Mic: 60 dBV
Source: 26 dBV
Tone Controls: +/-12 dB 100 Hz Bass
+/-12 dB 11kHz Treble
Noise Floor: Speaker out: -67 dBV
Pre Out: -90 dBV
S/N Ratio: 96 dBV
Priority Attenuation: 60 dBV
POWER AMP
Recommended Load: 8 Ohms
THD + Noise: .06% typical-82 dBV
120 VAC 50-60 Hz
Weight: 5.5 lbs (2.5 kg)
Size: 19” x 1.75” x 5”
(48cm x 4.5cm x 12.7cm)
DIP SWITCH SETTINGS (From left to right)
• If a microphone requires phantom power, move the Mic channel’s correspond-
ing PHANTOM POWER switch to the up position. This applies 12 volts dc phan-
tom power to the indicated microphone.
• SOURCE 1 MONO; this switch sums the Right and Left inputs of Source 1 to
mixed dual-mono inputs.
• Mic 2 Priority; when in the up position, all program material on Mic 1 and Sourc-
es 2 and 3 will be “ducked” or muted when a signal is present at Mic 2. Source 1
is left un-muted.
This function is used for paging.
• Source 1 Priority: when in the up position, Source 2,and 3 will be “ducked” or
muted by the signals at Source 1.
This function is for jukebox priority. With a jukebox connected to Source input 1,
and the Talkover switch 2 on, the other Source input signals such as background
music, will be muted and only the jukebox will be heard.
• MONO / STEREO: When up, the output of the MA2355 is summed to mono.
Either jack can be used as a mono output.
FAULT PROTECTION
The fault protection in the MA2355 limits the current to the output stage. This mode
is entered whenever the output stage is called upon for too much power, it may also
be fooled by impedances lower than four ohms - which may cause the output stage to
overheat and be irreversibly damaged.
Since the MA2355 is convection cooled, the unit radiates heat from the front
panel and, depending on the load demand, it may become very hot if drawn upon
heavily.
Connects to tip
Connects to ring
To Amp Insert
Fig. 1
Produktspecifikationer
| Varumärke: | Rolls |
| Kategori: | Stavmixer |
| Modell: | MA2355 |
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