About the AudioSource AD508 (Factory Refurbished)
Product highlights:
- 65 watts per channel into 8 ohms (20-20,000 Hz) at 0.2% THD with all channels driven
- 100 watts x 8 into 4 ohms
- 200 watts x 4 bridged into 8 ohms (at 1 kHz)
- 8-channel amplifier with 4 independent playback zones
- play the same source through all 4 zones, or have a different source play in each one
- high-efficiency switching amplifier design
- Over Temperature Protection (OTP) gently reduces power if temperature gets too high, avoiding shutoff
- Over Current Protection (OCP) differentiates between a direct short and a dynamically low speaker impedance
- optical digital input for connecting a TV, CD player, or network streaming device (accepts 2-channel PCM only; not compatible with Dolby Digital or DTS)
- rear-panel bass and treble controls
- rear-mounted, independent gain controls for each channel
- Bus 1 and Bus 2 RCA inputs can be assigned to any channel so that different sources are available for each zone
- each pair of bus inputs has a corresponding output that can be daisy-chained to another amplifier
- discrete pairs of "local" RCA inputs for each zone
- detachable Phoenix-style speaker connectors
- three power-on modes (normal, signal-sensing, trigger)
- infrared remote control included
- rack-mountable with included hardware
- two-rack spaces high (3.5" tall without feet)
- frequency response: 20-20,000 Hz
- signal-to-noise ratio: 100 dB
- 16-3/4"W x 4"H x 16-5/8"D
- weight: 32.4 lbs.
- warranty: 3 years
- MFR # AD508-R
- Item # 021AD508R
What's in the box:
- Refurbished 8-channel/4-zone power amplifier
- 6' AC power cord
- Remote control (CR2025 3V battery installed)
- 8 Phoenix-style connectors (pre-installed)
- 2 Rack-mount brackets
- 4 Short screws
- 4 Long screws
- Owner's Manual
More details on the AudioSource AD508 (Factory Refurbished)
Features & specs
| General | ||
|---|---|---|
| Amplifier Type | Distributed Audio | |
| Amplifier Class | D | |
| Number of Channels | 8 | |
| Power Output per Channel (8 ohms) | 65 | |
| Power Output per Channel (6 ohms) | --- | |
| Power Output per Channel (4 ohms) | 100 | |
| Frequency Bandwidth | 20-20k | |
| THD | 0.2% | |
| Minimum Impedance | 4 | |
| Bridged Power per Channel | 200 watts | |
| Speaker Outputs | 8 | |
| THX Certification | No | |
| Width (inches) | 16-3/4 | |
| Height (inches) | 4 | |
| Depth (inches) | 16-5/8 | |
| Weight | 32.4 pounds | |
| Parts Warranty | 3 Years | |
| Labor Warranty | 3 Years | |
| Inputs & Outputs | ||
| Number of Inputs | 7 | |
| Input Type | RCA | |
| Removable Power Cord | IEC 3-prong | |
| Level Controls | Yes | |
| Speaker Connectors | Phoenix | |
Product Research
Features
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 and convenient.
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 THD+N
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 connected speaker.
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 output channel.
- 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 device.
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 heavy-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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Clean, clear, crisp sound and an easy install... Crutchfield's Design and install team created a phenomenal outdoor living experience for my entire family and every guest that visits!
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