The TS-A2500LB features a compact, space-saving enclosure designed for optimal use of space. The enclosure is shallow enough for mounting in a wide variety of vehicles, including pickup trucks with standard or extended-cab models. Its unique design allows it to be mounted upright, lying flat facing upwards, or configured in a down-firing position. The enclosure is fully carpeted with an embroidered Pioneer logo, creating a non-slip and scratch-resistant surface. This Shallow-Mount Pre-Loaded Enclosure provides a maximum power of 1200 W with continuous 300 W RMS. The subwoofer features a glass fiber and mica interlaced, injection-molded polypropylene IMPP™ cone with a 2 Ω single voice coil. The subwoofer is also fully protected by a steel mesh grille. For installation flexibility, the feet and cushions are removable to enable different layout configurations to suit your vehicle’s application.
 
Easily Upgrade to High Performance
Pioneer’s A-series sound design purposely matches the subwoofer and full-range loudspeakers to provide seamless and smooth sound characteristics with dynamic, high impact bass that lets you hear and feel the music.
 
Easy to connect
Traditional subwoofer terminals are mounted horizontally or vertically, forcing wires to be bent to fit, which can be difficult if heavy-gauge high-performance wires are used. The Pioneer shallow subwoofer’s angled binding-post push terminals make it easy to connect speaker wires, save space, and simplify installation.
 
Flexible Options
With the included accessories, this subwoofer is designed for flexible installation in multiple ways. The feet can be screwed onto the bottom or top using the pre-drilled holes, and the pads on the feet limit possible sliding. When facing downwards with the four legs installed on the bottom of the subwoofer, it leaves space between the subwoofer and the floor, pushing the sound waves towards the floor where they reflect to deliver a richer sound with more pronounced bass. Facing the subwoofer upwards allows it to move more air into the cabin, delivering strong and clear bass. A vertical orientation disperses the sound like conventional speakers, producing fast and punchy bass, with direct waves being reflected off a surface, leading to a particularly precise and punchy sound.
 
Glass-fiber & Mica reinforced IMPP™
Polypropylene (PP) is a tough thermoplastic resin that is an ideal material for a speaker cone due to its low mass and high damping properties. PP cones offer good sensitivity and low distortion. However, basic raw polypropylene cones lack the rigidity and strength required for high output and extreme low bass. To resolve this, Pioneer engineers, using advanced Computer-Aided Manufacturing, developed a process to blend glass fibers and mica into the polypropylene resin during the injection molding process. The resulting reinforced IMPP™ cone is thinner and low mass with high rigidity and superior strength, producing natural, detailed sound with deep and powerful bass.
 
Butyl Rubber Suspension
Made from a specially blended, highly durable, and moisture-resistant compound, the butyl rubber keeps the cone moving in a precise linear direction. Not only does it provide greater consistency across various excursions, but it also reduces unwanted vibration from the cone to the basket during signal changes and stops. This results in less distortion and superior bass frequency response.
 
Double Aramid Fiber Spider
Pioneer's aramid fiber spider design effectively supports the voice coil by damping cone vibrations and improving linearity during sound reproduction. Its soft part ensures smooth movement and clear sound even under high power, while its firmer part controls excessive vibrations and prevents unwanted movements that cause distortion.

The design of a slim subwoofer requires a smaller distance between the front and rear suspensions, reducing their effectiveness in maintaining the necessary linearity during low-frequency excursions. To counter this disadvantage, Pioneer has developed a dual spider design, increasing the precision of movement without increasing mechanical resistance. The goal is simple: to provide all the details of your music by offering excellent control during long excursions while maintaining a small footprint in your car.
 
Deep Bass
To achieve deep and tight bass, a rigid and lightweight cone is essential. However, without a proper motor structure, it’s ineffective if you’re looking for a good bass punch. The subwoofer uses a strontium magnet paired with a large copper voice coil and a glass-imide voice-coil former for better bass control under high excursions. This also helps achieve better heat dissipation.