Down4sound’s Single & Dual Prefab “PROFAB” Subwoofer Boxes V1 vs V2

DOWN4SOUND single, dual, triple, and quad prefab subwoofer boxes, aka PROFAB subwoofer enclosures, are built to bang, sound great, and not break the bank. Prefab subwoofer enclosures are a great way to get big bass without custom-building a subwoofer box. This article is to help you better understand what Prefab box you will need between V1 and V2 KERF PORT at Down4sound.

PREFAB aka PROFAB Version 1 Enclosures:

The Profab v1 is tuned low, with a wide port tuning that makes it ideal for subwoofers that share similar specs to the Sundown Audio SA REV.3. PROFAB V1 will fit most subwoofers and manufacturers’ airspace requirements. It’s a safe bet to use subwoofers on our website that aren’t over 35 lbs, will fit into the Profab subwoofer boxes, and give you the big bass you crave when you wanna rock out.

• The Profab V1 is tuned between 32Hz – and 37 Hz depending on the size and quality of the subwoofer drivers.
• The PROFAB v1’s are available in single and dual  6.5, 8, 10, 12, and 15-inch subwoofer enclosures that can handle up to 2400W RMS at the terminal, and the single sub boxes are just around 1200W RMS at the terminal.

• Thick Poly-armor to protect and seal whatever life throws at them.
• Official Sub Boxes of Sundown Audio Loaded Enclosures, LCS, E, and SA Classic Series

Checkout DIY AUDIO GUY’S REVIEW of

PREFAB aka PROFAB Version 2 KERF PORT Enclosures:

These are built with HD3Bx Technology; in short, these are reinforced and MADE FROM BIRCHWOOD with a KERF PORT for heavier subwoofers & optimized ported output! These sub-boxes are built for whatever life throws at them. We overbuilt these boxes because customers said they wanted more.

1. Double Baffle to hold heavier subwoofers drivers
2. Braced for more strength
3. Kerf Port, for more musical bass by optimizing port output.
4. Tuned from 32 Hz – 37 Hz
5. 3x Thick Poly Armor for Supreme subwoofer box protection
6. HD-T2 Terminal was designed in-house using Grade 8 nut, bolt, and washer and the strongest injection molded abs plastic we could get our hands on; we are rating these from 40ooW – 8000W RMS*.

Currently, the v2 is only available in single and dual 12-inch subwoofers; more are on the way! This post will update accordingly when more sizes are available for the v2 series.

So if you’re looking for an easy way to get big bass, check out our selection of prefab subwoofer enclosures! I hope this helped; for more info, click or tap the images to be taken to the product page to purchase your Down4sound prefab, aka PROFAB subwoofer boxes.