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receptacles, and the point where they exit Important Safety the apparatus. Instructions 13. Non-use Periods—The power cord of the apparatus should be unplugged from 1. Read Instructions the outlet when unused for a long period 2. Keep these Instructions of time. 3. Heed all Warnings. 14. Object and Liquid Entry — Care should 4. Follow all Instructions be taken so that objects do not fall into and liquids are not spilled into the inside of 5. Do not use this apparatus near water. the app
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WARNING:THIS SUBWOOFER IS CAPABLE OF PRODUCING VERY HIGH SOUND PRESSURE LEVELS. YOU MUST TAKE EVERY PRECAUTION TO PROTECT YOUR HEARING FROM PERMANENT DAMAGE. Contents Safety Instructions ......................................... Introduction ................................................... 4 Features ........................................................ 4 Unpacking and Care ..................................... 4 Overview ....................................................... 5
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Introduction Features Amplifier Thank you for purchasing this Sunfire SubRosa™ Subwoofer. We hope you • 2,700 watt, high-efficiency amplifier enjoy it and the music it makes as much • Automatic room equalization mode as we have enjoyed creating it for you. • Measurement microphone included The big breakthrough features of • Very low distortion the subwoofer are its uncanny track- ing downconverter, its long throw, high • Automatic signal-sensing turn-on and back-electromotive force drivers,
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The Amplifier Overview The large movement range of the driv- Your Sunfire SubRosa subwoofer is ers creates greater air pressure inside designed to give you the best possible the box than a conventional subwoofer. low-frequency sound quality for your Therefore, the drive amplifier must be Home Theater experience. It incorporates much more powerful than an ordinary a tremendously powerful amplifier and a subwoofer amplifier. In fact, it has to be pair of drivers to produce tight, floor-rum-
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Amplifier Features 1 3 4 5 6 7 8 9 10 1. Standby LED and 6. Equalizer Authority This control's primary purpose is to . Power Switch adjust the EQ Authority. During normal Press the power switch in to turn on listening, you can adjust the overall EQ the amplifier. As a general rule, turn it from none (ccw, 0%), to fully equalized on after your preamplifier or receiver (cw, 100%). For example, if your first is turned on. When you have finished band has a 6 dB boost, setting this list
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11 1 13 14 15 16 17 Rotate the crossover frequency control 11. Line-Level Inputs until the bass sounds natural. If the Connect these unbalanced inputs with mid-bass sounds good but you want RCA type patch cords to the line-level more low bass, turn this control down a outputs of your receiver or preamp. little, then turn the Volume control up by about the same amount. This increases If your preamplifier or receiver has a the low-bass output while leaving the single sub/LFE output, con
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Control Panel Features continued 11 1 13 14 15 16 17 patch cords. Then connect a second The amplifier is designed to patch cord from these outputs to the power only the Sunfire SubRosa inputs of your main amplifier. This will subwoofer. No other subwoofer or allow your main speakers to operate speaker should be connected, or at frequencies above 70 Hz and the this may lead to serious damage to subwoofer to operate at frequencies your equipment. below 70 Hz (see page 16). 16. Line Fuse 13.
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Amplifier Installation Observe the following general AC Power Considerations precautions and read the safety in- Ensure that the amplifier is plugged into structions on pages and 3 before an outlet capable of supplying the correct using your Sunfire subwoofer. voltage specified for your model. • The amplifier may be rack mounted Unplug your amplifier’s power cord using the supplied rack ears. It will from the electrical outlet if it will be left fit into a standard 1U, 19 inch rack u
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Connections Please consider the following when set- • Whenever possible, keep the ting up your new system : power cords away from the signal cables or speaker wires to prevent • Before making or changing any any hum or interference being connections, ALWAYS make sure heard in the speakers. that the sub amplifier and your other components are turned OFF. Also • Choose reliable, high quality inter- turn down the volume control of the connect cables, also called patch sub amplifier and your
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Subwoofer installation The following procedure will help you Mounting options find the best location for your subwoofer. Your subwoofer has three mounting (This method may seem a bit odd, but it possibilities. (You will need an assistant is based on solid principles of acoustic to help lift and position the subwoofer.) physics.) A. Free standing. 1. Start by placing the subwoofer right on the seat of your favorite couch or easy chair, with the woofers fac- ing upwards. Position it with
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Room Equalization Procedure Subwoofer performance is greatly af- Have the kids play in the backyard and fected by the room in which it is situated, give the dog a treat to stop him barking. and the positioning within the room. The A small amount of noise, such as quiet room effects will boost and cut the output talking or whispering, is OK. levels reaching your listening position. 3. Place the microphone in the listening This gives a "room EQ" effect which can position (on the couch, for e
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If you find that the first test tone plays this manual procedure if you think the louder and louder, and never leaves the equalization might still need a tweak: first band, then either the microphone is 1. Set these controls: too far away from the subwoofer, or it is • Volume to 0 dB. not plugged in correctly. • Crossover to "Bypass." 8. The procedure may take several • Phase to "Normal." minutes. Do not make any loud noise • Equalizer Authority to "50%" during this process, as it may affec
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System Configurations The following pages show some typical connections that you might make in your installation. They show how the inputs and outputs of the subwoofer's amplifier are con- nected to your preamplifier or receiver. Connections to a preamplifier’s subwoofer output If your preamplifier has a subwoofer output (often labeled LFE for Low Fre- quency Effects), it can be connected to the amplifier’s Left (Mono) input as shown. This is the simplest and recommended connection. A rece
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Connections to a preamplifier using Y cables If your preamplifier does not have a sub/LFE output, you can use “Y” cables to send its main outputs to both the subwoofer am- plifier and your main amplifier. The subwoofer will play the low frequency range and your front speakers will play the full range. Although bass is commonly distributed evenly between left and right channels (L+R bass), movie soundtracks often contain differential (L-R) bass. The opening scene in “Top Gun”, for examp
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Using the line level high-pass outputs If you are using a preamplifier which does not have a sub/LFE output, you can send its left and right front output into the line-level inputs and then connect the sub amplifier’s high-pass outputs to the inputs of your main amplifier. The subwoofer will play the low frequencies and your main amplifier and front speakers will play the frequency range above the subwoofer’s fixed high-pass crossover point. The signals coming out of the high-pass ou
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Adjusting the controls There are two main methods for adjust- Step 4. Use the phase control to make ing the level, crossover frequency and the response even smoother. It has its phase of the Sunfire subwoofer to match biggest effect at the crossover frequency. a system: You can iterate between the crossover and the phase controls. Keep your hands • Sunfire’s preferred method: By off the level control! It was set correctly listening and making the in step . adjustments to suit your tas
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Subwoofer Installation Instructions Mounting points The rear panel has six threaded holes 1 that allow for three different mounting methods. 3 Horizontal position In this position, the subwoofer's longest side is horizontal. Two brackets are sup- plied for this mounting option. 4 5 With the help of an assistant, 6 gently turn the subwoofer on its side, and secure the brackets to holes 2 and 5 with the supplied thumbscrews. Always use the brackets when the subwoofer is in this position
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9. Secure the two Vertical position rubber cups to the In this position, the subwoofer drywall anchors stands upright with its weight using the supplied supported by the floor, with one screws. (Or use the foot bracket mounted at the supplied lag bolts if the holes fall on bottom, and two rubber snap a stud location) mounts at the top to prevent it tipping forward. 10. Connect your speaker wire to the subwoofer terminals. The vertical mounting procedure is as follows: 11. Move the
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Specifications Amplifier Output Input Sensitivity (full output): ,700 watts rms 50 mV rms from left input with volume control at 0 dB, 60 mVrms volume con- High Cut Filter trol fully clockwise * 30 Hz - 100 Hz adjustable, with a 0.75 Vrms from right input with volume "Bypass" position control at 0 dB, 00 mV rms volume Frequency Response control fully clockwise * 18 Hz - 115 Hz (-3 dB) Input Impedance: Power Line Voltage 30 k Ω for Line-Level inputs US model 56 k Ω for Hi-Level inpu
