Ruth's sister
Ruth's sister International Power Cord 35x67mm Black 1 Pair
A pair of 35 mm diameter, 67 mm long black plastic port tubes for 4-inch speaker cabinets
- Improves speaker sound quality with precisely sized port tubes
- Lightweight plastic construction simplifies cabinet installation and upgrades
- 35 mm diameter fits standard four-inch driver enclosures
- 67 mm length tunes bass response for compact cabinets
- Durable black finish resists wear in high-excursion subwoofer use
Speaker Port Tubes 35 mm Diameter
These black bass reflex ports suit 4 inch speaker cabinets and come as a pair. They replace worn or missing guide tubes in existing enclosures. The plastic construction keeps weight low for simple mounting. Builders finishing a compact subwoofer or hi fi box will find them a direct fit.
Reflex Port Limits 67 mm Length
The 67 mm tube length sets a fixed tuning frequency that cannot be adjusted after installation. Cabinets smaller or larger than the intended volume will shift the bass response away from the designer target. No flared ends are included so air velocity noise may appear at high output levels. The pair provides only two ports so multi-driver towers need additional pieces.
Plastic Build Snap In Mount
Smooth black plastic resists humidity inside a sealed box and does not rattle when pressed into a 35 mm cutout. The 1.38 inch outer diameter matches standard hole saw sizes for quick drilling. Each tube weighs only a few grams so panel vibration stays minimal. The simple push fit means no glue or screws are required for service access.
Highlights
- Improves speaker sound quality with precisely sized port tubes
- Lightweight plastic construction simplifies cabinet installation and upgrades
- 35 mm diameter fits standard four-inch driver enclosures
- 67 mm length tunes bass response for compact cabinets
- Durable black finish resists wear in high-excursion subwoofer use
Specifications
No published specifications for this item yet.
Questions about this item
Should I pick the 35 mm or 67 mm port tube for my 4-inch speaker?
The tube has a 35 mm diameter and 67 mm length; both dimensions are fixed in the single pair supplied.
How does the 3.5 cm diameter affect bass response in a real cabinet?
The 3.5 cm bore tunes the enclosure for a 4-inch driver, extending low-frequency output and reducing port noise.
What does the plastic construction mean for airflow and durability?
Smooth plastic walls minimise turbulence, and the material resists vibration fatigue in typical hi-fi use.
New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
Black Box Corporation
Black Box Corporation CAT6 EZ-RJ45 Modular Plugs 100-Pack
$95.99
0.00115231BTC
In stock
