• Earthquake enhanced Class AB power amplifier
• 8″ long throw woofer with Santoprene surround
• 48oz high gauss magnet
• 2″ high temperature voice coil
• Optimized flared bass port and down firing enclosure design
• Speaker level inputs up to 10 volts
• RCA level (low) audio input
• Auto turn on / signal detection circuitry
• 0–180° phase shift switch
• Versatile setup options with broad compatibility
• Great option for apartments, condos, and town homes
• Unobtrusive and easy to position
• Black ash finish

• Power Output: 150W RMS / 300W Peak
• Crossover Slope: 12db/Octave
• Crossover Frequency: 40Hz–180Hz
• Frequency Response: 23Hz–180Hz
• Typical THD: 0.09%
• Input Impedance: 47 kOhm
• Input Sensitivity: 50mV–2.3V
• Power Supply: 115V/230V (50Hz~60Hz)
• Fuse Rating: 1 amp
• Dimensions: 13.5″ (343mm) x 9.5″ (241mm) x 13.75″ (349mm)
• Weight: 21 lb (9.52 kg)

• (1) SUB-80X subwoofer
• (1) Power cable
• (1) Product manual

The SUB-80X’s ability to produce such impressive bass from a compact enclosure is no accident. It is the result of several synergistic design elements, each meticulously engineered to maximize low frequency output and quality.

At the core of its design is an 8-inch long-throw woofer in a down firing configuration. This orientation is a clever acoustic strategy, as it utilizes the floor as an acoustic amplifier. By directing the sound downwards, the subwoofer couples with the largest, most rigid plane in most rooms – the floor – effectively making it part of the subwoofer’s acoustic system. This interaction enhances bass output and depth, creating a room-filling sound that feels substantially larger than the subwoofer’s modest physical dimensions might suggest.

The advantages are numerous: the bass is perceived as deeper, and more output is generated for the same amount of amplifier power, leading to more evenly distributed bass throughout the listening area, particularly on hard flooring surfaces. This design also contributes to versatile placement, as it tends to minimize the boomy spots that can sometimes arise from direct wall radiation from rear ported subwoofers, and is less likely to create standing waves. For a compact subwoofer aiming for significant output, the down firing approach is particularly astute. It leverages an existing room boundary to achieve acoustic gain that might otherwise necessitate a larger driver or a more voluminous enclosure, perfectly aligning with the goal of providing impactful bass from an unobtrusive and easy-to-position unit. By leveraging room boundaries for acoustic gain, the SUB-80X delivers powerful performance in a discreet unit, demonstrating smart engineering.

The SUB-80X subwoofer features an optimized front-facing flared bass port that complements its down firing woofer. Bass ports, or vents, are commonly utilized in subwoofers to enhance the output of low frequencies. The design of the port, specifically its flaring, is critical; unflared ports may induce turbulence and audible distortion or chuffing. The flared port of the SUB-80X is engineered to smooth airflow, thereby significantly reducing turbulence.

Such meticulous attention to airflow contributes to a cleaner and more defined bass response, particularly during dynamic audio passages. This design enables the port to operate efficiently, enhancing the overall quality of bass reproduction. By incorporating a flared port rather than a simpler opening, this subwoofer demonstrates an investment in acoustic refinement that is often lacking in budget models, as it prioritizes sound quality by minimizing distortion. Furthermore, the front-facing design permits greater flexibility in subwoofer placement, allowing for closer positioning to walls without the adverse effects typically associated with rear-ported configurations. This combination of the front-facing flared port and the down-firing woofer ensures that the woofer benefits from floor coupling while the port effectively radiates bass energy directly into the room, facilitating a balanced delivery of depth and impact.

The SUB-80X features an advanced Class AB power amplifier that delivers 150 watts of continuous power and 300 watts of peak power. Class AB amplification is recognized for its effective balance within audio engineering, providing significantly improved efficiency compared to pure Class A designs while yielding lower distortion and a more natural, musical sound profile than many Class D amplifier implementations. This amplifier ensures sufficient power even under prolonged heavy usage, enabling the SUB-80X to produce impactful bass with no discernible strain or distress. When combined with the acoustically efficient down firing and flared port enclosure design, the substantial power rating ensures that the amplifier does not operate in isolation; the overall design synergy helps it achieve impressive output levels.

The heart of the SUB-80X’s acoustic engine is its custom-designed 8-inch long throw woofer, which incorporates several premium components chosen for their specific performance attributes. The SUB-80X employs Santoprene instead of low-grade rubber for its surround. This durable thermoplastic material is ideal for long stroke applications, allowing the woofer cone to travel more freely and accurately, which enhances its power handling capabilities while ensuring linearity and reducing distortion.

The motor structure consists of a substantial 48oz magnet, which provides a strong magnetic field that exerts tighter control over the woofer cone’s movement. This leads to more accurate, responsive, and articulate bass reproduction, as well as increased efficiency and output.

A robust 2-inch voice coil is engineered to withstand the considerable heat generated during prolonged periods of high-power operation. This ensures reliability and prevents performance degradation or potential failure, guaranteeing that even hard use is handled problem-free