System installers in search of a quality installation mixer / amplifier will be impressed with the TOA Electronics A-848D, a flexible six-channel mixer / 480W amplifier that's ideal for paging announcements and BGM applications in schools, offices, and supermarkets. The A-848D is equipped with four mic/line inputs, two auxiliary inputs, and two 900-Series module slots. The amplifier offers a single speaker output that's switchable between 4 ohms and 70V operation. The integrated Power Factor Correction (PFC) circuit prevents damage from faulty power. The unit offers several functions, including volume control, priority, chime, and remote confirmation. In addition, it is equipped with a 2-channel input Bus of Audio and Duck, and the signal processing function. The A-848D includes a power cord, several block terminal plugs, a volume control cover, and rackmount hardware.

Open Box Products Have a Limited 5-Year Manufacturer Warranty    Lightweight Digital Power Amplifier    4 Mic/Line Inputs + 2 Aux Inputs    Two 900-Series Module Slots    Control Input for Emergency / Priority    Voice Detection Function with Ducking    Treble and Bass Controls    Switchable Speaker Output: 4 Ohms / 70V    Remote Control via Windows Web Browser    DSP: Filters, EQ, Gate, Limiter, Ducker    Includes Terminal Blocks and Power Cord

• 480W power amplifier output
• Lightweight owing to the built-in digital power amplifier unit
• Emergency broadcast and priority broadcast activated by way of the control input (contact)
• Voice detection function that allows the priority broadcast to be activated by voice
• Priority setting function
• Remote confirmation function that allows you to confirm the unit’s status through the web browser using a PC
• Switchable speaker output (4 ohms or 70 V)
• Module slots provided for mounting up to 2 units of 900 Series modules
• Electronically balanced 4-microphone inputs (MIC 1 to MIC 4) with Input setting switches
• Fine sound adjustment possible by connecting a signal processor like an equalizer between the pre-amplifier output and the power amplifier input
• Bass and treble tone control knobs
• Output level meter
• Master volume control knob to simultaneously adjust all input levels
• Remotely controllable master volume
• Built-in chime unit (1-note chime, 2-note chime, and ascending 4-note chime)
• Equipped with the following signal processing functions: Dynamic feedback filters, Equalizer (3 points), Gate, Software volume, Limiter, and Ducker

Related Questions and Answers

Q: 1. how do i set the jumpers in back i cant understand the diagram on the back?

A: The jumper settings on the ISA Ti will depend on the mode you are using the amplifier. Switch 1&2 correspond to the limiter and filter for channel 1, switch 9&10 correspond to the filter and limiter on channel 2. The center switches (3-8) set the amplifier mode: Stereo parallel or Bridged. Settings are shown on the rear panel diagram. If you are still having issues please contact a Pro Audio Rep here for assistance at 800-606-6969, or email a href= http://audio@bandh.com target= _blank audio@bandh.com/a

Q: 2. What is the factory warranty for the PX8?

A: The Yamaha PX8 Stereo Power Amplifier has a three year limited warranty.

Q: 3. Does it have fans to keep it cool?

A: Yes the Yamaha PX8 amplifier has cooling fans.

Q: 4. if this amp is connected to a stereo receiver, do the speakers connect to the amp or receiver?

A: The speakers will connect to the amp as the amp is what is providing the power to the passive speakers

Q: 5. Where is this unit manufactured, as labeled on the unit? Please no opinions, just facts.

A: The Toa Electronics CA130 30W Mobile Mixer Amplifier with Microphone is manufactured in Indonesia.

Q: 6. How do I connect 2 speakers up to the amp

A: This Amp is a 70V output amp, that enable you to connect multiple speakers in parallel. you will need to follow the polarity on the Amp and the speakers, the speakers also have to be 70V speakers.

Q: 7. My speakers are Max 380 watts RMS, is the PX5 too powerful?

A: No, the PX5 is not too powerful for speakers that can handle 380 watts each. You can use an amplifier with a power rating that is up to double the amount of power that the speakers are rated for at the same impedance. For example, if your speakers are rated for 380 watts at 8 ohms and the PX5 is rated at 500 watts per channel at 8 ohms, they are compatible.

Q: 8. Can we use PX3 pro amp for hometheater setup and home or this is for commercial purpose like events and functions .. thanks

A: This is generally used for either amplifying PA speakers or for commercial use. Usually home entertainment speakers require an amplifier that pushes a different impedance. This amp does 300w at 8ohms per channel and 500w at 4ohms per channel. Most home entertainment speakers run at 6ohms and are generally a lower wattage.

Q: 9. Hello Can i control the volume of each zone or set of speakers separately Can i send different music to different zones Thanks

A: To control the volume of each zone, you need to have a separate volume control unit connected to each zone. You can selectively turn on and off zones from the amplifier but you cannot create different mixes for each zone.

Q: 10. Is it possible to output low impedance on channel one and high impedance on channel two simultaneously?

A: When in stereo mode, the QSC ISA300Ti Commercial Power Amplifier with 70V Transformer operates both outputs independently, so you could use one channel for 8Ohm and the other channel for 70V.