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Set your available volume and acoustic goals. Explore the entire eligible driver library, then refine compatible designs in Box Design.

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Bass Match filters the library, applies your constraints, then simulates compatible drivers. Inputs (your requirements and the filtered driver library) feed Bass Match, which simulates compatible drivers; the selected design is refined in Box Design. Your requirements Net volume ≤ 60 L F3 ≤ 35 Hz MOL @ F3 ≥ 105 dB Buildable straight port Driver library 8,000+ drivers Library filters All manufacturers 12-inch drivers Any brand Bass Match 1,532 simulated 21 fit every limit Compatible drivers Pre-qualified from your filtered library JL Audio 12TW1-4 F3 26.7 Hz · 50.5 L American Bass XD-1222v2 Smallest box · 38.8 L Skar Audio IVX-12v2 D2 MOL 116 dB Refine in Box Design JL Audio 12TW1-4 · 50.5 L F3 26.7 Hz Hz dB

Real run on the current catalog · 2026-10-24

Real result, not a mock-up

12-inch sub, up to 60 L net, F3 ≤ 35 Hz, MOL @ F3 ≥ 105 dB

21 of 1,532 12-inch drivers fit with a buildable straight port. Deepest bass, smallest box and highest output:

  1. JL Audio 12TW1-4 Predicted response of JL Audio 12TW1-4: recommended bass reflex against a sealed box
    F3
    26.7 Hz
    Box
    50.5 L
    Tuning
    24.1 Hz
    Port
    Ø 7.5 × 39.8 cm
    MOL @ F3
    114.6 dB
    Open this box in the Studio
  2. American Bass XD-1222v2 Predicted response of American Bass XD-1222v2: recommended bass reflex against a sealed box
    F3
    32.7 Hz
    Box
    38.8 L
    Tuning
    34.4 Hz
    Port
    Ø 10.0 × 44.1 cm
    MOL @ F3
    111.9 dB
    Open this box in the Studio
  3. Skar Audio IVX-12v2 D2 Predicted response of Skar Audio IVX-12v2 D2: recommended bass reflex against a sealed box
    F3
    34.8 Hz
    Box
    54.8 L
    Tuning
    35.6 Hz
    Port
    Ø 10.0 × 26.7 cm
    MOL @ F3
    115.5 dB
    Open this box in the Studio

Textbook vented alignment from published Thiele/Small data; refine volume, port and power handling in the Studio.

Load Forge Studio: Skar Audio SDR-12 D2 in a 53.5 L bass-reflex box, its predicted response and three similar drivers found by Bass Match
Then refine it in Box Design · actual Studio capture of the deepest-bass pick above

Constraint-first enclosure engineering

From physical limits to predicted sound.

Define your requirements once. Let Bass Match explore the driver library, then compare compatible candidates and refine your enclosure.

  1. 01

    Set your constraints.

    Define your available internal volume, target bass cutoff (F3), and acoustic output goals. Rather than picking a random driver and forcing a box around it, start from your physical and acoustic limits.

  2. 02

    Simulate the library.

    Bass Match evaluates electroacoustic alignments across the catalog against your targets, filtering out combinations that cannot meet your goals.

  3. 03

    Explore what fits.

    Review compatible candidates side by side. Inspect simulated frequency response, cone excursion, and port air velocity, then transition seamlessly into Box Design to refine the final enclosure.

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