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Black carpeted MDF ported enclosure for single 12 inch subwoofer

Sycho Sound

Sycho Sound 12SP Ported 12" Single Car Bass Box Enclosure

SKU CH-GPX4-4Y6SW

Ported 12-inch enclosure tuned to 32 Hz adds up to 3 dB output with a front port that cuts harmonic distortion

  • Speaker unit size12 in (30.5 cm)
  • Ported design tuned to 32 Hz boosts output by 2-3 dB
  • Front port cuts 5th-order harmonic distortion for cleaner bass
  • 49 cu ft internal volume fits a 12" woofer with 11" cutout
  • 13 x 18 x 16 inch cabinet built from CARB-compliant MDF with aviation-grade carpet
  • Spring-loaded terminals accept raw wire for quick drop-in installation

Single 12-Inch Ported Enclosure

The Sycho Sound 12SP is a pre-built, ported cabinet designed to hold one 12-inch woofer for car, truck or SUV audio systems. It arrives fully assembled so the installer only needs to run raw speaker wire to the spring-loaded terminals and mount the driver. The enclosure targets enthusiasts who want a ready-made bass solution without building a box from scratch.

Port Tuning And Distortion Control

The front-firing port is tuned to 32 Hz and is engineered to reduce fifth-order harmonic distortion while adding up to 2-3 dB of output around the tuning frequency. This alignment sets a practical low-frequency limit near the tuning point, meaning usable extension drops off below 32 Hz. The ported design also demands adequate cabin space to avoid loading issues that can alter the intended response.

MDF Construction And Mounting Details

The cabinet uses 0.75-inch thick CARB-compliant MDF wrapped in black aviation-grade carpet for durability and a finished appearance. Internal volume measures 1.49 cubic feet, with an 11-inch cutout diameter and 14.5-inch mounting depth to accommodate most standard 12-inch woofers. External dimensions are 13 inches high, 18 inches wide and 16 inches deep, so verify vehicle cargo space before purchase. Builders needing dual-sub enclosures or sealed alignments should look elsewhere.

How it compares

Measured against everything we stock in Car Stereo Speakers, at today’s prices. Recalculated every night.

Price $52.99
Cheaper than about 70% of the 379 comparable items (median $104.99).

Specifications

Product
Brand nameGoldwood
Audio & video
Speaker unit size12 in (30.5 cm)

Questions about this item

Should I pick a single or dual 12-inch ported box for my vehicle?

This is a single 12-inch ported enclosure with 1.49 cubic feet internal volume and a 32 Hz tuning frequency, suited for one woofer.

What does the 32 Hz tuning mean for daily listening?

The box is tuned to 32 Hz, so bass output peaks around that frequency and the front port can add 2-3 dB compared to a sealed design.

What wire connections does the spring-loaded terminal accept?

Spring-loaded terminals on each side take raw speaker wire for positive and negative leads; no special connectors are required.

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