PreSonus AIR15s Active Review: 15 Inch Live Subwoofer With Cardioid Presets

Who Should Buy It

Key Specifications

Overview

The PreSonus AIR15s Active is a powered sound reinforcement subwoofer built around a 15 inch woofer and a 1,200W Class D amplifier with DSP. The product listing describes it as suitable for mobile applications, installed systems and ground stacking, which covers most of the ways a subwoofer of this size is used. It is priced in the mid-range tier.

It appears in a studio monitor category because it is an active low frequency loudspeaker, but the listing is explicit that this is a live sound product. The frequency response, maximum SPL, voice coil size, input complement and array presets all point to reinforcement in rooms and outdoor spaces rather than to a mixing desk.

This is an editorial research review based on the published specification and on general knowledge of how powered subwoofers are deployed. The listing is better than average for a live sound product, with a response range, an SPL figure and connector details stated, but it omits dimensions, weight and accessories, and those gaps are noted where they matter.

Accuracy and Sound Signature

A live subwoofer is judged by extension, headroom and how cleanly it hands over to the tops, and the AIR15s publishes the numbers that matter for the first two. The listing states a 35 Hz to 160 Hz frequency response and a maximum SPL of 132 dB. A 35 Hz lower limit reaches into the fundamental of a kick drum and a five string bass, and 132 dB is loud enough for a dance floor in a medium venue.

The handover to the tops is governed by the variable low pass filter. Rather than a fixed crossover point, the listing describes a filter that lets the operator dial in the upper frequency limit, which is useful when pairing the subwoofer with tops that roll off at different points. A 15 inch top may want a lower crossover than an 8 inch top, and the variable filter accommodates both.

The 3 inch voice coil is the detail that speaks to control. A larger coil dissipates heat better and resists power compression during long sets, which keeps the low end consistent from the first song to the last. The accuracy score is strong for a live subwoofer because the response and SPL are published, while noting that no distortion or filter slope figures are given.

Drivers, Amplification and Power

The listing specifies a 15 inch woofer with a 3 inch voice coil, which is a mainstream size for a single box subwoofer that one or two people can move. Cone material, magnet type and excursion are not published. A 15 inch driver generally offers a good compromise between the extension of an 18 inch unit and the transportability of a 12 inch unit.

Power is listed as 1,200W Class D and described as dynamic, which usually denotes a short term or peak figure rather than a continuous rating. No continuous or RMS number is provided, so buyers comparing against subwoofers that quote continuous power should keep that distinction in mind. Class D is the expected choice because it is efficient and light.

The DSP is confirmed in the listing title and is the brain behind the low pass filter and the array presets. Limiting and driver protection are not described but are standard functions in processed powered subwoofers, and the maximum SPL figure implies that the system has been characterized at its limits. The driver and power score reflects published, specific figures.

Room Fit, Placement and Controls

Subwoofer placement in a venue has more influence on the result than any other decision, and the AIR15s is one of the few subwoofers in this tier that publishes array presets. The listing names ground stacked and end fire presets for creating a cardioid subwoofer array, which uses two or more cabinets to cancel low frequency energy behind the stack.

Cardioid arrays reduce bass on stage, which helps vocal microphones stay clean and lets the performers hear themselves. End fire arrangements place cabinets in a line front to back, while ground stacked cardioid setups typically reverse one cabinet in a vertical stack. The presets apply the correct delay and polarity for each layout without manual calculation.

For a single subwoofer, the variable low pass filter is the main room tool, and the listing confirms it. Polarity switches, delay in milliseconds and parametric EQ bands are not listed, so any further tuning would depend on the mixer or a system processor. Pole mount sockets for a top speaker are not mentioned in the listing.

• Variable low pass filter to set the upper limit
• Ground stacked cardioid preset
• End fire cardioid preset
• DSP based processing confirmed in the listing
• Designed for mobile, installed and ground stacked use

Build, Design and Finish

The listing describes the AIR15s as suitable for mobile, installed and ground stacked applications, which implies a cabinet built to be moved and stacked. Enclosure material, handle design, grille type and finish are not published. Wheels and a pole cup are not mentioned either, and both affect how a subwoofer is used in a mobile rig.

Dimensions and weight are absent from the listing, and for a 15 inch powered subwoofer with a 1,200W amplifier those two figures decide whether the cabinet fits a vehicle and whether a single operator can load it. Buyers should obtain them from the manufacturer before committing to a transport plan.

The build score credits the stated multi role design and the 3 inch voice coil, which usually accompanies a driver built for sustained power, while marking down for the lack of physical data. Nothing in the listing describes the cabinet construction, so any durability judgment rests on brand reputation rather than published fact.

Connectivity and Inputs

Connectivity is a clear strength on paper. The listing describes two XLR and 1/4 inch combo inputs with direct outputs, so a stereo feed from a mixer can enter the subwoofer and pass through to the left and right tops. That removes the need for a separate crossover or splitter in a simple rig.

A 1/8 inch input for smartphones and tablets is also listed. In a live subwoofer this is a convenience for background music between sets or for a small event where the whole program comes from a phone, with the sub passing signal to the tops through its direct outputs.

Whether the direct outputs are high passed or full range is not stated, which affects how much low end the tops are asked to reproduce. No network or app control is listed. The connectivity score is high because the published input complement covers the common cases.

Setup and Daily Use

A typical setup on paper is straightforward: mixer outputs into the two combo inputs, direct outputs on to the tops, then the low pass filter set to match the low frequency limit of the tops. For a cardioid array, the operator selects the ground stacked or end fire preset on the relevant cabinets and positions them as the preset expects.

The 1,200W dynamic rating and 132 dB SPL maximum suggest the AIR15s can run at high level for a full event, and the 3 inch voice coil supports that over a long night. Without a published weight, daily handling cannot be judged from the listing, and the absence of described wheels means a dolly may be needed.

Day to day, the variable low pass filter is the control most operators will touch, since different tops and different rooms call for different crossover points. The listing does not describe a display or menu system, so adjustments are presumably made from rear panel controls.

Who Should Buy It

The PreSonus AIR15s Active suits mobile DJs and bands who need a single 15 inch subwoofer with published performance figures under a pair of powered tops. The combo inputs with direct outputs make it easy to insert into an existing system, and the 1/8 inch input handles phone playback.

Installers and houses of worship that want to control stage bass will value the cardioid presets, because two AIR15s cabinets can be configured as an array without external processing. Operators who already run PreSonus AIR Series top speakers have a natural match in voicing and controls.

It is not the right product for a studio. A mixing room needs a subwoofer with a low crossover, precise level matching and often a bass management input for a stereo pair, and a studio design built to sit under monitors such as the Yamaha HS5 or Kali Audio LP-6 is the correct choice. It is also a cautious buy for anyone who must know weight and size before purchase.

Alternatives Worth Considering

Within the PreSonus line, the AIR Series includes other subwoofer sizes, and the company also offers larger live subwoofers in its CDL Series for higher output needs. A 12 inch model would be lighter and easier to move for small events, while an 18 inch model would extend lower and play louder in big rooms.

From other brands, 15 inch powered subwoofers at this tier commonly publish similar response ranges, but fewer of them include cardioid array presets, and some omit a variable low pass filter in favor of a fixed crossover. The AIR15s compares well on connectivity because the combo inputs with direct outputs and the 1/8 inch input are all confirmed.

For studio use, powered studio subwoofers from Adam Audio, KRK, Neumann and Yamaha are built to sit under nearfield monitors such as the Adam Audio T5V or the Yamaha HS5. Those are the relevant alternatives for anyone who landed here while shopping for mixing equipment.

Verdict

The PreSonus AIR15s Active is a mid-range powered live sound subwoofer with more published data than most of its competitors. A 15 inch woofer with a 3 inch voice coil, 1,200W of dynamic Class D power, a 35 Hz to 160 Hz response, a 132 dB SPL maximum, a variable low pass filter, two combo inputs with direct outputs, a 1/8 inch input and cardioid array presets are all stated in the listing.

The unknowns are physical. Dimensions, weight, cabinet construction, pole mount and wheels are not published, and the power figure is dynamic rather than continuous. The score of 78 reflects a well specified live subwoofer with a transport question mark.

Buy it for mobile and installed sound reinforcement, especially where stage bass control matters. Do not buy it as a studio subwoofer.

Strengths and Limitations

Alternatives to Consider

JBL JRX225

DJs, bands and venues that want a high output passive dual 15 inch cabinet to run from an existing amplifier rack.

Read the JBL JRX225 review →

JBL PRX908

Mobile performers, DJs and small venues that want a compact 8 inch powered PA speaker with professional DSP, feedback suppression and app control.

Read the JBL PRX908 review →

PreSonus Eris Pro Sub 10 10-inch Active

Nearfield studios that want a 10 inch sub with every integration control and connection documented and a footswitch in the box.

Read the PreSonus Eris Pro Sub 10 10-inch Active review →

Questions Buyers Ask