Choose Output Wire and Connectors, Distance

2Setup

2.4Choose Output Wire and Connectors

Ampliﬁer Output Connections: Crown recommends using pre-built or professionally wired, high-quality, two-conductor, heavy gauge speaker wire and connectors. You may use crimp-on spade lugs for your output connectors. Slip the cable lugs under the output screw terminals and tighten (Figure 2.7). To prevent the possibility of short-circuits, wrap or otherwise insulate exposed loudspeaker cable connectors. Cover the output connections with the supplied non-touch cover.

Using the guidelines below, select the appropriate size of wire based on the distance from ampliﬁer to speaker. The wire sizes apply to the 4-ohm tap.

Distance	Wire Size
up to 25 ft.	16 AWG
26-40 ft.	14 AWG
41-60 ft.	12 AWG
61-100 ft.	10 AWG
101-150 ft.	8 AWG
151-250 ft.	6 AWG

NOTE: Custom wiring should only be performed by qualiﬁed personnel. Class 2 wiring is required.

Commercial Audio Series Business Music System

AMPLIFIER OUTPUTS

Figure 2.6 Ampliﬁer Output Connections

Figure 2.7 Connections to the Preamp	To telephone system
Line Out Connector	To telephone system
	interface/PBX input

Figure 2.8 Connections to the MOH Line

Output Phoenix Connector (1V or 1W

Connector)

CAUTION: Never use shielded cable for output power wiring.

Use 2-conductor shielded cable and a 3-pin Phoenix-type connector for Preamp Line Output (Figure 2.7), and for MOH 1V or 1W output (Figure 2.8).

Use 1-conductor shielded cable and RCA plugs for the Stereo Line Out connector and the MOH 1V Line Output RCA Connector (Figure 2.9).

Music-On-Hold Connections

You can play music from the XM radio over your phone line while the caller is on hold. Use one of the connectors below to connect the 180MAx to the Music-On-Hold input on your telephone system interface/PBX.

•MOH 1V Line Output Connector: 3-pin Phoenix connector, 600-ohmtransformer-isolated output, provides Music-On-Hold signal of approximately 1 volt. See Figure 2.9.

•MOH 1W Line Output Connector: 3-pin Phoenix connector provides Music-On-Hold signal of approxi- mately 1 watt. See Figure 2.9.

•MOH 1V Line Output RCA Connectors:Two RCA connectors (mono) for 1-voltMusic-On-Hold output (in parallel with 600-ohm connectors, so they are isolated). See Figure 2.10.

To stereo	To telephone system
line-level	interface/PBX
input

Figure 2.9 Connections to the Stereo Line Out Connector and the MOH Stereo Line Out Connector

page 10

Operation Manual

180MAx specifications

Crown Audio has consistently set benchmarks in the audio amplification industry, providing innovative solutions that cater to both live sound and installed audio applications. One of their notable products is the Crown Audio 180MAx. This versatile amplifier is specifically designed for delivering high-performance audio in various settings, making it a perfect choice for musicians, sound engineers, and audio professionals alike.

The Crown 180MAx boasts an impressive power output, capable of delivering 180 watts per channel into 4 ohms. This ensures that even in larger venues, the audio remains powerful and clear, meeting the demands of live performances and installations. A key characteristic of the 180MAx is its ability to provide consistent performance even under heavy load conditions, a hallmark of Crown's engineering excellence.

One of the standout features of the 180MAx is its advanced circuitry that provides exceptional audio fidelity. Featuring a low-frequency roll-off option, it can be tailored to reduce unwanted bass frequencies, allowing for a cleaner output in environments where echo and acoustics can impact sound quality. The amplifier supports a wide frequency response, ensuring that all nuances of music and vocals are captured crisply.

In terms of connectivity, the Crown 180MAx offers a variety of input options, including balanced XLR and Euroblock terminals. This flexibility allows for easy integration with various audio sources, from professional mixing consoles to simpler audio playback devices. Furthermore, its built-in protection circuitry prevents overheating and short circuits, thus ensuring reliability and longevity of the amplifier in any application.

Crown Audio emphasizes user-friendliness in the design of the 180MAx. The front panel features LED indicators for power, signal, and clipping, providing immediate feedback on the amplifier’s status. The lightweight yet robust construction makes it easy to transport and install, whether in a mobile setup or a permanent venue installation.

The 180MAx also embraces modern technology with its efficient Class D amplifier architecture, which not only reduces power consumption but also minimizes heat generation. This design maximizes performance while maintaining compact dimensions, making it suitable for both rack-mounted and standalone applications.

In conclusion, the Crown Audio 180MAx synthesizes power, reliability, and user-friendly features, making it an exceptional choice for anyone seeking a high-quality audio amplification solution. Its combination of advanced technology, flexibility, and durable design makes it a standout option in the competitive audio market. Whether for live sound reinforcement or fixed installations, the 180MAx continues to deliver superior performance that audio professionals can trust.