AudioSource AD Series: AudioSource AD series digital amplifiers are
designed for home and commercial audio distribution systems where high quality
sound, flexibility, and reliability are essential. The AD series offers high
efficiency and exclusive features that will make their installation and use easy
8-Channel Power Amplifier: The AudioSource AD508 is an 8-channel
amplifier that is designed for distributed audio applications. The amplifier can
be configured for Stereo (4-ohm minimum) or Bridged (8-ohm minimum) output.
- Stereo (8-ohm): 65 watts x 8 channel @ 20-20kHz with <0.2 THD+N
- Stereo (4-ohm): 100 watts x 8 channel @ 20-20kHz with <0.2 THD+N
- Bridged Mono (8-ohm): 200 watts x 4 channel @ 1kHz with <0.2
4 Zones: The AD508 can distribute audio to 4 Zones. You can
configure the amplifier to play the same source input (Bus 1/Bus 2) in each
Zone, group source inputs (Bus 1/Bus 2) in specific Zones, or have different
sources (Line In 1-8) playing in each Zone. Each Zone can consist of one pair of
stereo speaker, two speakers in mono, or one Bridged-mono speaker. Each Zone
also has independent level control.
Bus Line Inputs & Outputs: The AD508 has two "common" or Bus
inputs that receive audio signals from standard line-level audio sources and
sends them to any or all channels and zone. The two pair of Bus line outputs are
direct feed-through to allow the Bus inputs to be fed to other amplifiers.
- Bus Level Controls: Each Bus has its own independent level
adjustment. This allows the output level of each Bus to be adjusted to make
up for different source levels, or to group two different source's volume
levels. The Bus Level Control can be operated from the rear-panel or remote
control in 1dB increments.
- Bus Bass & Treble Controls: Bass (100Hz) & Treble (10kHz) can be
adjusted (from -12 to +12B) independently for Bus 1 and Bus 2.
Optical Digital Input: The AudioSource AD508 also features
an optical (toslink) digital input that is assigned to Bus 1. This digital input
only support 2ch PCM (not compatible with Dolby Digital or DTS).
Individual Channel Input: In addition to the Bus line inputs
& Optical digital input, the AD508 offers a dedicated input for each of the
eight output channels, so you can have a discrete source playing through each
Phoenix-Style Speaker Outputs: The AD508 uses high-quality
Phoenix-style connectors for each speaker output (1-8). The Phoenix-style
connectors can accept 14-18 gauge speaker wire. There are two sets of
Phoenix-style connectors in each Zone (1-4), so you can connect two speakers in
stereo, two speakers in mono, or one speaker in Bridged-mono in each Zone.
- Source Selection: Each output channel (1-8) is capable of
delivering source audio from on of 3 inputs - Bus 1, Bus 2, or Line In.
You can choose to play the same source or different sources from each
- Gain Control: Each output channel (1-8) has its own independent level adjustment.
This allows the output level of each speaker to be perfectly matched to its
area. It can also be used to limit the maximum audio level in a certain area.
IR Remote: The included IR remote provides wireless
operation of the power amplifier. Remote functions consists of Power On/Off, Bus
1 Volume Up/Down, Bus 2 Volume Up/Down, and Mute.
Trigger Input/Output: The AD508 is outfitted with a trigger
input and output, each consisting of a 3.5mm minijack terminal. The 3.5mm
trigger input will accept a 3-30V AC/DC output from another electronic component
device to turn the amplifier On from Standby mode. The A508 also provides a
3.5mm trigger output (12V/500mA) to turn on and off another electronic component
Detachable AC Power Cord: The AD508 comes with a detachable 6' AC
power cord which will need to be plugged into an AC wall outlet, surge
protector, or power conditioner.
Mounting Options: The AudioSource AD508 power amplifier
features four heav-duty feet and can simply be placed on top of a flat surface;
like a table-top, shelf, or stand. You can also remove the four feet and
rack-mount the amplifier using the included rack-mount ears and screws.
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