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Infinity Subwoofer BU-1 Review: Best Bass for Your Buck

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The INFINITY Subwoofer BU-1, a beacon of superiority in bass performance, is a formidable addition to any audiophile's setup. Unveiled by Elac, a renowned name in the audio industry, this subwoofer is designed to redefine low-frequency reproduction, stepping into a league of its own.

The BU-1 is not just another subwoofer; it's an embodiment of Elac's commitment to delivering unparalleled audio experiences. With its unique design and high-end components, this subwoofer promises to captivate users with its depth, detail, and dynamic range.

Applying Advanced Technology for Unparalleled Bass

At the heart of the BU-1 lies Elac's proprietary 12-inch aluminum cone driver, a marvel of engineering. This driver, paired with a massive 1,500-watt Class D amplifier, delivers a thunderous yet controlled bass performance.

Infinity 120.9w
Infinity 120.9w
No Other Design Sounds Better Than This - Infinite Baffle - 8,000 Watt Test - Part 1
No Other Design Sounds Better Than This - Infinite Baffle - 8,000 Watt Test - Part 1
a drawing of a washing machine with the front door open and an opening in the middle
a drawing of a washing machine with the front door open and an opening in the middle

Innovation also echoes in the integrated 1200-watt Jantzen JANTZ L258 low-pass filter, which ensures distortion-free output even at extreme volumes. This dedicated filter, coupled with a 24dB/octave slope, guarantees the BU-1's seamless integration with any speakers in a home theater system.

Deep Bass Extensions and Impact

The BU-1 effortlessly finds its stride at the deepest frequencies, dropping down to an astonishing 18Hz. This is not just about numbers; it's about feeling. Every low note in your favorite tracks, every explosion in your movies, every rumble in your games, the BU-1 ensures they're experienced, not just heard.

the diagram shows how to draw a bathroom with measurements
the diagram shows how to draw a bathroom with measurements
an open box with a speaker inside and measurements on the side to show how it is built
an open box with a speaker inside and measurements on the side to show how it is built
a bunch of wine bottles that are in a wooden box with wires attached to them
a bunch of wine bottles that are in a wooden box with wires attached to them

With its 300mm (12-inch)David Olson-designed long-throw voice coil, the BU-1's driver moves more air than typical subwoofers, delivering unmatched impact and physicality. It's like having a compact, yet powerful thunderstorm in your listening room.

Versatility and Control

The BU-1's versatility is evident in its connectivity options. It features three input options: line-level, LFE, and speaker level inputs, along with a step-response correction port. This versatility ensures that the BU-1 can integrate flawlessly into any system.

Elac includes a top-mounted, custom-laser-engraved volume dial, along with Phase, Crossover, and Low Pass filter controls. These allow you to fine-tune the BU-1's output to your exact preference, ensuring it complements your system perfectly.

an electric motor is shown from above on the concrete floor with wires attached to it
an electric motor is shown from above on the concrete floor with wires attached to it
two speakers are connected to each other with wires
two speakers are connected to each other with wires
two speakers sitting on top of a wooden table next to each other with blue lights
two speakers sitting on top of a wooden table next to each other with blue lights
Subwoofer Box Calculator and Subwoofer Box Design
Subwoofer Box Calculator and Subwoofer Box Design
An Improved Transmission Line Alignment
An Improved Transmission Line Alignment
Need help designing a box for 4 12s
Need help designing a box for 4 12s

Designed for Aesthetic Appeal and Robustness

The BU-1's sleek, modern design is a testament to Elac's architectural heritage. Its magnetically-attached, winter white or black piano-gloss finish grille, and bass port modeled after Elac's Alpha ELS speakers, give it a cohesive, high-end look.

Under the hood, the BU-1 is built to last. ItsClass D amplifier, using Jantzen's proprietary chassis, runs cool and efficient, reducing the need for airflow. The driver and filter components are locked into place with sturdy aluminum struts, ensuring minimal vibration and maximum durability.

Eco-Friendly Design Without Compromise

Elac's commitment to sustainability is reflected in the BU-1's recyclable packaging and auto standby mode, which kicks in after 30 minutes of inactivity. This not only reduces energy consumption but also extends the amplifier's lifespan.

AVATAR SST-312 BASS REFLEX
AVATAR SST-312 BASS REFLEX
a wooden object with a hole in the middle and a piece of wood sticking out of it
a wooden object with a hole in the middle and a piece of wood sticking out of it
an unfinished dog house being built in a workshop
an unfinished dog house being built in a workshop
Ukuran Dan Skema Box Speaker Sub-Bass 15 Inch Double
Ukuran Dan Skema Box Speaker Sub-Bass 15 Inch Double

The BU-1's sealed enclosure, designed to maximize bass performance, is filled with 100% recycled PWM (Polyester Wood Fibre) material. This provides the ideal balance between damping and stiffness, further enhancing the overall sound quality.

Experience the future of low-frequency reproduction with the INFINITY Subwoofer BU-1. Visit your nearest Elac dealer today or explore the BU-1 online, and prepare to be astonished by what a subwoofer truly can do.