Ampeg Micro-VR User Manual

5
MICRO-VR Bass Guitar Amplifier
8. VOLUME: Use to control the overall
output level. It aects the Speaker
Outputs [17] and Headphones Output
[12]. Use it wisely and turn it down
when making connections, putting on
headphones, or trying something new.
9. LIMITER SWITCH: Press this switch
in to activate the Limiter circuit. If the
signals driving the amplier start to
peak, the Limiter will automatically
reduce the signals to prevent clipping,
and the LED [10] will ash. The Limiter
will help keep the amplier’s output
“clean” up to high output levels and
avoid potentially damaging distortion�
10. LIMIT LED: This LED illuminates when
the Limiter circuit is activated, indicating
that the amplier is nearing full output
and the Limiter is preventing peak
signals from clipping the output. If you
notice that the LED is lighting regularly,
reduce the Volume or the EQ levels to
prevent damage to your speakers�
11. AUDIO IN: The audio output from line
level sources such as a mobile device,
MP3, or CD player, can connect to this
1/8" TRS stereo input. The incoming
audio is mixed with the preamp signals,
so you can play along to a practice
track as you listen with headphones.
(The audio coming in here is routed
strictly to the Headphones Output, and
appears nowhere else.)
12. PHONES: Use this 1/8" TRS stereo
output to connect your headphones�
The output here is a mix of the line level
signals reaching the amplier, plus any
incoming audio from the Audio In jack
[11].
If you just want to listen and practice
through headphones, disconnect the
Speaker Outputs [17] from the speaker
cabinet. (This is a solid-state amplier,
therefore, there is no harm in playing
without speakers connected.)
Before putting on headphones,
make sure the Volume control [8]
is turned down, and that any external
audio source (if connected) has its
level turned down. This will reduce the
chance of hearing damage due to loud
volumes�
13. POWER SWITCH: Press the top of this
illuminated switch to turn the overall
system power on, and press the bottom
to turn it o.
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Ampeg Micro-VR Specifications

Power Output

output power rating at 8 Ω	150 Watts RMS
output power rating at 4 Ω	200 Watts RMS

Signal and Gain

signal to noise ratio	72 dB
maximum gain	62 dB

Tone Controls

bass control	+14/–12 dB @ 40 Hz
midrange control	+5/–13 dB @ 500 Hz
treble control	+19/–25 dB @ 8 kHz

Power Requirements

power requirement for 100–120 VAC	150 W
power requirement for 220–240 VAC	150 W
frequency	50–60 Hz

Weight and Dimensions

size (H x W x D) in inches	7.5 in x 12 in x 10 in
size (H x W x D) in millimeters	190 mm x 305 mm x 254 mm
weight in pounds	9.9 lb
weight in kilograms	4.5 kg