12cm Full-Range Speaker Double Bass Reflex Enclosure Pair DIY

Note: Speaker units are not included.
This is a pair of DIY speaker enclosures designed for 12cm full-range units using a double bass reflex system. Utilizing a volume of approximately 10.7L, these enclosures are designed to emphasize rich bass and natural extension despite their compact to medium size.
[Features] Designed to reinforce bass despite their compact size / Aims for a balance that enhances mid-high frequency clarity / Natural bass extension can be expected with the double bass reflex system / Sound-absorbing material and small wooden balls are placed in the first chamber to suppress internal reflections.
[Design Details] ■First Cabinet (Front Stage): Volume approx. 4.76L / Port Φ51 x approx. 75mm / Resonance frequency target approx. 70Hz ■Second Cabinet (Rear Stage): Volume approx. 6L / Port Φ51 x approx. 260mm / Resonance frequency target approx. 40Hz / *Due to the double bass reflex structure, the frequency will shift lower than simple calculation values. / *Sound quality will vary depending on the speaker unit used and the installation environment.
[Specifications] External Dimensions: W170 x H307 x D302mm / Weight: Approx. 3.5kg (per unit) / Material: Plywood / Opening Diameter: Φ103 (PCD126) / Speaker terminals included / Internal wiring (with Faston terminals) / Finish: Maple-like (water-based stain)
[Example Compatible Units]
・Fostex FF125WK
・Other 12cm class full-range units
[Condition] As these are handmade items, there may be variations in paint, minor scratches, and individual differences. The units have been temporarily installed and tested for adjustment and operation confirmation (there may be minor marks from installation).
[Recommended for]
・Those who want to enjoy deep bass with compact full-range speakers.
・Those who do not want enclosures as large as back-loaded horns.
・Those who enjoy DIY speakers and the differences in sound.
Thank you for viewing.