Phoenix Gold ISM6 - Manual

Congratulations on your purchase of the Phoenix Gold

Innovative Home ISM Speaker Selector. This product

is designed to distribute stereo music to several

independent listening zones via connection with

your existing audio system.

Please read this Installation Manual to ensure the

proper installation and performance of your ISM

Speaker Selector.

ISM6

6 Zone Stereo Speaker Selector

Function of the ISM

The ISM is a low-profile speaker-level audio distribution

system with individual On/Off selectors controlling signal

distribution to separate zones. Pass-through amplifier

input terminals allow easy connection of additional ISM

selectors. User-selectable Protection circuitry ensures that

the combined speaker load impedance presented to the

amplifier never falls below 3 ohms per channel.

Installation and Connection Procedures

Polarity (+/-) for the input and output speaker terminals

is clearly marked on the ISM rear panel. Speaker

wire is coded to identify each conductor as either

positive (+) or negative (-). This may be by color coding,

or one conductor may have a printed marking or a rib

along one edge that you will not find on the other. Identify

which type of polarity coding that your wire is using and

which conductor is positive (+) or negative (-).

1. Route the speaker cables from each speaker zone

and the amplifier to the terminals on the ISM. These

terminals will accept up to 10 gauge speaker cable. Use of

speaker cable smaller than 16 gauge is not recommended.

Note:

UL rated CL3 speaker wire is recommended when

running wire inside your walls. In many areas it may be

required by code. When installing your speaker wire, avoid

running the speaker wire parallel to any 120V power lines to

avoid picking up hum and interference from the power service.

If the speaker wire needs to cross a 120V power line at a

right angle this is acceptable and will not create a problem.

If you are uncomfortable with running the speaker wire yourself

in existing construction, it is recommended that you retain a

qualified custom home installation specialist or electrician.

2. Strip 3/8” insulation from the end of the cable and

twist the exposed end to avoid fraying.

3. Press the spring-loaded lever on the speaker terminal

and insert the speaker cable, carefully observing the

polarity.

4. Release the spring loaded lever to clamp the cable

in place. Gently pull on the cable to ensure it’s securely

connected.

5. The system is now ready for testing. Turn on the

sound system and set the amplifier’s volume control

to a moderate level.

6. Sound should be heard from each zone when its

button is depressed. Check each zone for proper left

and right connections by activating each zone with the

balance adjusted to full left and then to full right.

7. Attach the custom die-cut labels provided to the

buttons of the ISM, referencing each button to its zone

zone within the installation.

Recommended Speaker Wire Gauges

The resistance of the speaker wire in your installation

can cause your speakers to perform at less than their

optimum quality level. Excess resistance caused by

using an undersized speaker wire can result in loss of

detail and definition in the bass region of your audio

program, as well as loss of dynamic range. Over extremely

long wire runs you may even experience a loss of high

frequency content in the audio signal.

To prevent sonic degradation in your speaker installation,

total speaker wire resistance should be kept below

0.5 ohms. The following table lists recommended speaker

wire gauge versus wire run length.

50’ or less - 16 Gauge 2-Cond. CL3 Rated

50’ - 150’ - 12 Gauge 2-Cond. CL3 Rated

150’ - 200’ - 10 Gauge 2-Cond. CL3 Rated

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