Using the Controls (Front Panel)
Power
This front panel button switches the AMP One on or off. A multicolored LED indicates its power status.
Speaker Selector
The AMP One has two pairs of speaker outputs. Press button
A
to activate the
A
outputs. Press button
B
to activate the
B
outputs. Both
A
and
B
outputs may be used simultaneously, provided the combined impedance does not fall below 2 ohms.
Note: Before pressing either of the speaker selector buttons, be sure the AMP One's level controls are set at the minimum position.
Phones
You can connect headphones to the AMP One using a standard
1
⁄
4
" stereo phone jack. To deactivate the speakers
while you listen through headphones, simply turn off the
A
and
B
speaker selector buttons.
Meter X0.1
This switch increases the sensitivity of the meters by a factor of ten, which is useful for monitoring the AMP One's
output at low volume. In other words, the meters will display ten times the actual power output when this feature is
active. A red LED in this switch indicates activation.
Peak Limiter
The peak limiter modulates high frequencies at high volume, protecting your speakers from damage or distortion. A
red LED also indicates activation of this feature.
Power Meters
These meters indicate the output level of your AMP One. When the AMP One is powered up, the meters will be
softly lit, indicating standby mode. Once the unit's power supply is stabilized, its meters will brighten completely.
Input Level Controls
These knobs adjust the incoming signal level and thereby act as volume controls. We recommend that these be set to
max
and your signal source (receiver, CD player, preamplifier, etc.) be used to adjust the volume.
Hooking up the Wires (Back Panel)
Audio signals travel out of one component and into another. All of your connections should also go from
out
to
in.
Input Jacks
Connect the
line out
jacks from your signal source (receiver, CD player, preamplifier, etc.) to the
input
jacks on the
AMP One.
Note: "Line In" and "CD In" jacks cannot be used simultaneously.
Bridging Switch (refer to wiring diagram)
In addition to providing 80 watts RMS per channel in the stereo mode, your AMP One can be used as a high power
mono amplifier, providing over 200 watts RMS. This can be accomplished by sliding the
bridging
switch from the
stereo
position to the
mono
position. For mono applications, use only the right channel input. Similarly, use only the right
channel input level control.
Note: Be sure to observe the correct speaker connections for bridged applications. Because of the high power output in this
mode, we recommend initially setting the right level control at "min", and then adjusting the volume to the desired level.
Speaker Terminals
More than one pair of speakers can be used with the AMP One. We have provided two pairs of speaker outputs,
labeled
Spkr A
(left & right), and
Spkr B
(left & right). The speaker terminals are color coded. Red posts indicate posi-
tive (+) terminals and black posts indicate negative (–) terminals. Be sure to connect the positive output terminals of
your AMP One to the positive input terminals of your speakers and the negative output terminals of your AMP One to
the negative input terminals of your speakers.
Note: Refer to the wiring diagrams on the next page for proper connection of speaker cables.
3
2
1
FU
SE
FUSE 4A
LINE IN
CD IN
BRIDGING
OFF
(STEREO)
ON
(MONO)
BRIDGING
SPKR A
SPKR B
RIGHT
RIGHT
LEFT
LEFT
(+)
(–)
MODEL AMP ONE
-
+
-
+
INPUT
2
1
3
