Sunfire True Subwoofer Signature and Standard Version Line Level Inputs, Balanced XLR Input

passive network with a Þxed crossover frequency of 70 Hz and a 6 dB per octave slope.

We recommend using this high-pass function with main/satellite speakers that are small and not designed to reproduce low frequencies. If your main speakers are capable of operating full range, then you will not need to use the high-pass function.

To use the high-pass outputs, connect the preamp outs on your preamp/ receiver to the subwoofer’s line level in- puts using good quality RCA type patch cords. Then connect a second patch cord from the subwoofer’s outputs to the inputs of your main ampliÞer. This will allow your main speakers to oper- ate at frequencies above 70 Hz and the subwoofer to operate at frequencies below 70 Hz (see page 16).

6. Line Level Inputs

Connect these unbalanced inputs with RCA type patch cords to the line level outputs of your receiver or preamp.

If your preampliÞer or receiver has a single sub/LFE output, connect it to the subwoofer’s left input jack (see page 14). There is no need to use the subwoofer’s right input jack.

If you want to run your main/satellite speakers full range, use a “Y” adapter at the preampliÞer outputs (see page 15). In this way, you can send the preampliÞer’s output signal to your main ampliÞer and to the subwoofer at the same time.

7. Balanced (XLR) Input

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

8. Speaker Level Inputs

Under normal conditions, the preferred connection is through the line level inputs. If this is difÞcult or not possible in your system, then you can use the speaker level inputs. Also, if you expe- rience excessive noise or hum with the line level inputs, often a simple change to the speaker level inputs will result in a lower background noise level.

Connect the speaker level inputs to the speaker-level outputs of your ampliÞer or receiver using speaker wire. The binding posts can accept bare wire, banana, dual-banana or spade con- nections.

Your ampliÞer or receiver MUST have common grounded outputs, or it will be damaged if connected to the subwoofer’s speaker level inputs.

9. Line Fuse

The subwoofer is supplied with a con- servative slow-blow type fuse to protect the electronics.

Always unplug the power cord before inspecting or changing the fuse. Never use a fuse with a larg- er current rating than shown on the markings next to the fuseholder.

10. IEC Linecord socket

The subwoofer comes with a detach- able linecord which connects here.

US (120 VAC) MODEL: Connect the linecord to the subwoofer before connecting the other end to an 120 Volt, 60 Hz AC outlet. The outlet must have a circuit rating of 8 amps or more (a typical home circuit is rated at 15 amps).

Never plug the US (120 VAC) Model subwoofer directly into

220-240 Volts AC as this will cause catastrophic circuit failure.

User's Manual 7