BU-80 - Subwoofer INFINITY - Free user manual and instructions
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| Product Type | Powered Subwoofer |
| Brand | Infinity |
| Model | BU-80 |
| Driver Size | 8 inches (200 mm) |
| Amplifier Power (RMS) | 150 Watts |
| Amplifier Power (Peak) | 300 Watts |
| Frequency Response | 30 Hz – 150 Hz |
| Crossover Frequency | 40 Hz – 150 Hz (adjustable) |
| Phase Control | 0° or 180° |
| Inputs | Line-level RCA, Speaker-level terminals |
| Enclosure Type | Bass-reflex (ported) |
| Dimensions (W x H x D) | 12 x 14 x 12 inches (305 x 356 x 305 mm) |
| Weight | 25 lbs (11.3 kg) |
| Power Requirements | 120V ~ 60Hz (US), switchable to 220-240V |
| Auto On/Off | Signal sensing (auto standby) |
| Controls | Volume, Crossover, Phase switch, Power |
| Dimensions (Packaged) | 15 x 16 x 15 inches (381 x 406 x 381 mm) |
| Weight (Packaged) | 30 lbs (13.6 kg) |
| Warranty | 1 year limited |
| Recommended Use | Home theater, music system |
Frequently Asked Questions - BU-80 INFINITY
How do I connect the BU-80 subwoofer to my receiver?
Use an RCA subwoofer cable from the receiver's subwoofer pre-out to the subwoofer's Line In LFE input. Alternatively, use speaker-level inputs if your receiver lacks a subwoofer output.
What should I set the crossover frequency to?
Set the subwoofer's crossover to around 80 Hz for most home theater systems. Adjust based on your main speakers' bass capability.
Why is there no sound from the subwoofer?
Check power connections, ensure the subwoofer is turned on, verify the auto on/off function is detecting a signal, and confirm the receiver is sending a subwoofer signal.
Can I place the subwoofer in a corner?
Corner placement can increase bass output but may cause boomy or uneven response. Experiment with placement for best sound.
How do I clean the subwoofer?
Use a dry or slightly damp cloth to wipe the cabinet. Do not use harsh chemicals. Ensure the subwoofer is unplugged before cleaning.
Does the subwoofer have a phase switch?
Yes, the BU-80 has a 0°/180° phase switch to align the subwoofer's output with your main speakers for smoother integration.
What is the power consumption?
Typical power consumption is around 200-300 watts during use, with very low standby consumption (less than 1 watt).
Can I use the subwoofer with a computer?
Yes, connect via a 3.5mm to RCA cable from your computer's headphone or subwoofer output to the subwoofer's line input.
How do I adjust the volume?
Use the Volume control knob on the back panel. Start at minimum and gradually increase until the bass blends well with your speakers.
Is the subwoofer compatible with 220-240V?
Yes, the BU-80 has a voltage selector switch for 120V or 220-240V operation. Ensure the switch is set to your local voltage before plugging in.
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USER MANUAL BU-80 INFINITY
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Product information
Brand : INFINITY
Model : BU-80
Category : Subwoofer