Sunfire HRS-10, HRS-8 Line-Level Inputs, Crossover Frequency, High-Pass Outputs, Phase, Volume

6. Line-Level Inputs 8. Crossover Frequency

These connect with RCA type cables from the line-level outputs of your receiver or preamp. Here are two examples:

If your processor or receiver has a single subwoofer output, connect it to the subwoofer’s left input jack (see page 11). There is no need to use the subwoofer’s right input jack.

If your processor does not have a subwoofer output, use “Y” adapters at the processor outputs (see page 12). In this way, you can send the processor’s full-range output signals to your main amplifier and to the subwoofer at the same time.

7. High-Pass Outputs

Signals from these output jacks are a direct copy of the signals going into the input jacks of the subwoofer, with the exception that the bass below 70 Hz has been removed by a fixed high-pass crossover circuit. This handy feature lets the subwoofer control all the bass in your system, and you can use an external amplifier and smaller satellite speakers to control the mids and highs. (See the hookup diagram on page 13.)

We recommend using this high-pass function with small main/satellite speak- ers that are not designed to reproduce low frequencies. If you are used to the sound from smaller speakers, this op- tion will really bring your system alive.

If your main speakers are capable of operating full range, you will not need to use the high-pass function.

This controls the crossover frequency between 30 Hz and 100 Hz. If it is set to 30 Hz for example, the subwoofer will reproduce those frequencies below 30 Hz. Rotating the control clockwise will smoothly increase this frequency range up to 100 Hz.

In the bypass position, the crossover control has no effect. You should set this to bypass if your processor has its own subwoofer crossover frequency control.

If your processor does not have its own subwoofer crossover frequency control, rotate this control until the bass sounds natural. If the mid-bass sounds natural but you want more low bass, turn the crossover frequency down a little, then turn the volume up by about the same amount. This increases the low-bass output while leaving the mid-bass output the same.

9. Phase

This controls the relative phase of the subwoofer with respect to your other speakers. Use this to help blend the subwoofer with the rest of your system.

Adjust the control in small increments 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 control has been set.

10. Volume

This control lets you match the output level of the subwoofer to the level

of your satellite/main speakers. The subwoofer output will increase as this control is rotated clockwise. When installing your system, turn this down first before turning on your subwoofer, to prevent any loud surprises.

User's Manual