Emotiva X-Ref 10 User Manual download pdf (Page 27)

Page 23

Problem: No output at all

• Verify that you really have no output, and that you should have output.

(Subwoofers reproduce only very low frequencies. If you happen to be playing

something without low frequency content, then nothing will come from the

subwoofer. In addition, since low frequency sound has very little localization

information, if your main speakers also produce low frequencies, it may be difcult

to notice the contribution from the subwoofer with some program material.)

• Verify that the subwoofer output on your source equipment is active and congured

correctly, and that the output is active in the particular mode you are using with

the content you are using. (Some combinations of content, processing mode, and

conguration, don’t use the subwoofer. For example, some decoders don’t use the

subwoofer at all when playing stereo content in some modes.) If the subwoofer

produces output in any mode with any source material, then the subwoofer and

connections are probably working correctly and the problem lies with your source

component conguration or program material

• Verify that you have power.

• If you have power and signal, but still have no output, then please contact

Emotiva Technical Support.

Problem: Excessive hum or noise

• Check your signal source.

• Verify that all cables are plugged fully in, that the connectors t tightly, and that the

cables and connectors are in good condition.

• Try repositioning cables. If you have signal cables running near power cables, try

moving them further apart. (This is especially important with unbalanced cables.)

• If you are using unbalanced connections, try higher-quality cables with better

shielding. If that reduced but fails to eliminate the hum, consider trying balanced

cabling (especially for long runs or where runs next to power cables are

unavoidable).

• Some audio equipment (especially vacuum tube type) has a high output impedance,

which makes it inherently sensitive to picking up hum and noise, especially if

only unbalanced connections are provided. This is also true for some electronic

crossovers (especially passive models). It is essential that signal cables used with

such equipment be kept short, of good quality, and not run near power cables.

• Some difcult installations may require a balanced connection to completely

eliminate hum and noise.

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Emotiva X-Ref 10 User Manual Page 27