InSpire audio connections

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inSpire audio systems provide the most realistic church bell ringing available. This page contains instructions for installing these systems as well as illustrated downloads and links to each system's specifications. The digital amplifiers supplied with inSpire audio systems are custom tuned for the supplied speakers. All amplifier settings are pre-programmed to simplify the installation of this sophisticated bell ringing system.

Common instructions

  • Do not connect power to system until all connections are completed.
  • Start with the speakers and hookup amplifier and carillon last.
  • Never combine primary power and audio wiring in the same conduit or junction box.
  • Always use stranded wire for audio.
  • Place a junction box at both the amplifier and speaker locations so 14 AWG cable pigtails can be used to make connections.

What size wire should I use?

Size matters when it comes to low impedance speaker wiring. As the distance increases, consider the insertion loss for a given wire size and then increase the wire size (smaller AWG numbers) accordingly. Pro audio system designers generally look for a loss less than 0.2 dB but that may not be realistic for your situation.

This table is provided to help you understand what kinds of losses occur with different size wire. A 3 deciBel loss is one fourth of your amplifier power, that is, for 100 Watts output, only 75 Watts will get to the speaker. Lost power is dissipated over the length of the wire as heat.

Loss for 4-Ohm Load (-dB) Distance (feet) 14 AWG Distance (feet) 12 AWG Distance (feet) 10 AWG
3 (1/4 Power!) 300 450 750
1 100 150 250
0.5 50 75 125

If the amplifier is capable and programmed to output to a 70 Volt line, 14 AWG wire can be used. Keep in mind that speakers designed for 70 Volt lines have built-in transformers with their own insertion losses.

inSpire AX audio systems

DSP amplifier outputs

Long throw horn outputs
Each audio package includes a digital amplifier with DSP tuned to drive long-throw mid-high frequency horns. This is important because the realism available on the full range outputs of AX Virtual Bell Instruments may overload ordinary horn drivers.
Full-range speaker outputs
Audio packages that support full-range outputs are tuned to work either by themselves (inSpire Performance) or together with the long throw horns. The combination of equalization and level balancing provides not only speaker protection, but an authentic balanced carillon sound.
Subwoofer speaker outputs
The high-end audio packages feature a tower subwoofer output that provides hum tones of large bells.
Packages without a subwoofer can be configured to drive two inside monitoring speakers for stereo monitoring.

System specification and hookup pages

inSpire Outreach AX
Hookup (same instructions as Ascent)
inSpire Ascent AX
inSpire Performance AX
inSpire Professional AX
inSpire Ultimate AX

inSpire Millennium audio systems

inSpire Ascent

This package includes a digital amplifier with DSP tuned to drive four long-throw mid-range frequency horns and a single 12-inch, two way full range horn.

  • Three pairs of wires to the tower and optional Chime Master factory installation can provide optional directional level control for the long-throw speakers.