ADAM Audio Sub15 Active Studio Subwoofer, 15-Inch, 1000-Watt

ADAM Audio Sub15: 15-Inch Sub-Bass with 1000 Watts of Power

The ADAM Audio Sub15 is a high-power active studio subwoofer built around a 15-inch rigid aluminum-membrane woofer with dual magnets and a 100mm voice coil, driven by a 1000 W RMS Class D amplifier for extension down to 20 Hz. It reaches up to 120 dB SPL at 1 meter, the output and headroom a mid-sized or larger control room needs to feel full-range low end at reference level. Balanced XLR and unbalanced RCA I/O with satellite loop-through make it straightforward to integrate under main or midfield monitors. When a room is large enough to swallow a smaller sub, the Sub15 is the one that fills it.

15-Inch Aluminum-Membrane Woofer

The Sub15's low end comes from a 15-inch woofer with a rigid aluminum membrane, dual magnets and a large 100mm voice coil, in a bass-reflex enclosure. A rigid aluminum cone resists the flex and breakup that soften transient attack on a large driver, so bass stays tight and defined even at high excursion. The dual-magnet motor and oversized voice coil keep the cone under firm electrical control and dissipate heat, which preserves linearity and low distortion when the sub is working hard. That combination delivers deep bass with the articulation to hear real low-frequency detail rather than a wash of energy.

1000-Watt Class D Amplification

A 1000 W RMS (1200 W music power) PWM Class D amplifier with roughly 90 percent efficiency drives the Sub15 to up to 120 dB SPL at 1 meter. That much power lets a 15-inch driver reproduce sub-bass transients at high level without compression, maintaining the dynamic impact that thinner systems lose. Class D efficiency keeps the amplifier cool and compact despite its output, so the sub stays reliable through long, loud sessions. The result is authoritative, uncompressed low end that a large room can actually feel.

Extension to 20 Hz and Bass-Reflex Design

The Sub15 extends down to 20 Hz, effectively the bottom of human hearing, in a bass-reflex (ported) enclosure. The port reinforces the driver's deepest output near the tuning frequency, adding usable extension and efficiency over a sealed cabinet of the same size. Reaching 20 Hz means the sub reproduces the fundamentals of the lowest bass notes and cinematic low-frequency effects rather than only their harmonics. For full-range mixing and mastering, hearing that bottom octave accurately is the difference between guessing and knowing what a track's low end really does.

Flexible I/O and Bass Management

The Sub15 provides balanced XLR and unbalanced RCA inputs and outputs with satellite loop-through for clean integration into a larger monitoring chain. In a bass-managed system the sub takes the full-range signal, reproduces the deep lows itself and passes the rest to the mains, so each speaker handles the band it does best. Balanced XLR connections stay quiet over the longer cable runs a large control room requires. That connectivity lets the Sub15 anchor a stereo, multichannel or immersive rig with equal ease.

Who the Sub15 Is For

The Sub15 is built for adding deep sub-bass to main and midfield systems, bass management in large control rooms, immersive and surround rigs, and high-SPL mixing and mastering. Its 15-inch driver and 1000 W amplifier suit rooms where a 10- or 12-inch sub would run out of headroom or depth. Mastering engineers and mixers who need to hear and feel the bottom octave at reference level are its core users. For a serious large room, the Sub15 supplies the low-frequency authority that smaller subs cannot.