Delta Manual

Sunfire True Subwoofer Signature

Make sure that you keep your sales receipt. It is the only way to establish the duration of your Limited Warranty and it may come in useful for insurance purposes.

To keep the large rubber surrounds soft and supple for 20 years or more, treat them with MINK OIL, avail able at most shoe repair stores. Unplug the power cord, and rub a generous amount into the surrounds with a soft cloth about once a year (more often if you live in a dry climate).

A compressor circuit kicks in automatically if the input signal level reaches a level that would overload the driver. This maintains a ceiling on the output without clip ping. If the input signal is driven even further, a ’soft clipping’ circuit is enabled. This allows the subwoofer to put more sound into the room to satiate the power hungry user, but without distortion or damage to the subwoofer. Thus, for explosive scenes in movies, this produces extremely high sound pressure levels (SPL) in your room without the drivers banging against the mechanical stops.

Phase Control

This control changes the relative phase of the sub woof er with respect to your other speakers. Use this control to help blend the sub woof er with the rest of your system. This is accomplished by adjusting the control in small inc re – ments as you listen for the most bass at your listening position. As a final trim, readjust the Crossover Frequency and Volume controls after the Phase has been set.

Balanced (XLR) Input

Use this balanced input to connect to the balanced line-level output of a Home Theater preamplifier or other source. Balanced connections offer superior noise cancellation over unbalanced connections, so if your preamp has an XLR subwoofer output, we recommend using it.

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