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1. Power On/Off button - Press in to power unit ON
2. On/Standby - LED flashes or illuminates solid to indicate various setup modes. (Solid
Green - Power ON; Solid RED - Power OFF or Standby depending upon setup)
3. IR Sensor - IR sensor ‘sees’ the IR commands from the IR Remote, or other properly
configured programmable remote to control volume, source selection, mute, and
power
4. Line In (L&R) - Two RCA jacks; Analog audio sensing input. Using a stereo RCA cable,
connect to the L&R line level audio output on a source to be played though the amp.
If the source has variable output, be sure to lower the volume on the source prior to
turning the source and amp on the avoid unintentional damage to the amp and/or
speakers. Set source to an appropriate output level during audio level setup.
5. Digital Coax In- Coax (RCA) digital audio sensing input. Using a mono RCA cable,
connect to the digital coaxial audio output on a source to be played though the amp.
If the source has variable output, be sure to lower the volume on the source prior to
turning the source and amp on the avoid unintentional damage to the amp and/or
speakers. Set source to an appropriate output level during audio level setup.
6. SUB OUT - One RCA jack. Outputs line level low frequency content to a powered
subwoofer. Using a mono RCA cable, connect to the Sub IN or LFE jack on a powered
subwoofer or subwoofer amp.
7. OPTICAL IN - S/PDIF Optical Terminal (Toslink). Digital audio sensing input. Using
a optical audio cable, connect to the optical/Toslink audio output on a source to be
played though the amp. If the source has variable output be sure to lower the volume
on the source prior to turning the source and amp on the avoid unintentional damage
to the amp and/or speakers. Set source to an appropriate output level during audio
level setup.
8. Stereo/Bridge/MONO- Switch to have the amp put into Stereo or Bridged/Mono mode
9. SPEAKER TERMINALS - Four-position plug-in screw terminal. Outputs speaker
level audio to left and right channel speakers or a sound bar. Using 16AWG (min)
speaker wire, connect to the appropriate speaker terminals on a sound bar or left
and right speakers. Before connecting the speaker wire to the amp, twist the ends of
the speaker wire so there are no loose ends that can cause shorts. Observe proper
polarity. Confirm connections.
10. IR Learning Button- Press to enable IR learning. This allows ANY IR remote to be able
to control the volume, power, mute, and source selection functions of the BA251 and
BA2101.
11. IR RECEIVER IN – Connect using the provided IR Receiver/Extension cable to be able
to control and learn IR commands to control the BA251 and BA2101 amps. The amp
will turn OFF when no audio input has been sensed for fifteen minutes.
12. AC POWER TERMINAL (100-240V-50/60Hz 2.5A) - Universal power connector.
Automatically selects AC power mode (110VAC/230VAC) when connected to AC
power. After all connections have been made, connect the supplied AC Power Cord to
an unswitched AC power outlet.
