Speakerplans XM 15
Wedge-shaped 15″ top by Rog Mogale with P.Audio drivers and crossover – 82 L, tuning 62 Hz, f3 64.2 Hz according to the title block.
Primary source checked; some values are missing from the source or still open.
Share via …
Specifications
Link to section “Specifications”Every value with its provenance. If a value is missing from the source, it reads “not available”.
- Drivers
- 1 × P.Audio SN 15MB, 1 × P.Audio BM-D450 Designer
- Enclosure type
- Bass reflex
- Low-frequency extension
- 64.2 Hz (-3 dB) Designer
- Sensitivity
- not available
- Max. SPL
- not available
- Power handling
- not available
- Impedance
- not available
- Dimensions (H × W × D)
- not available
- Volume
- 82 L (Basis not stated) Designer
- Tuning frequency
- 62 Hz Designer
- Weight
- not available
- Recommended high-pass
- not available
Dimensioned are the baffle (470 × 714 mm, driver cut-out Ø 354 mm) and the edges of the wedge profile (430, 470, 180, 382 and 180 mm).
Description
Link to section “Description”In brief
A wedge top with a 15-inch woofer, a 1-inch compression driver and a specified crossover. Volume, tuning and f3 are given in the title block.
The XM 15 is a wedge-shaped 15-inch top by Rog Mogale. Speakerplans.com lists it among the mid-top plans; the side view shows a pentagonal wedge enclosure.
What the title block states
Link to section “What the title block states”- Woofer P.Audio SN 15MB, compression driver P.Audio BMD 450 (1″), horn PH 2420, crossover PAP VXM 2k3
- two ports 150 × 47 mm, 18 mm deep
- volume 82 L, tuning frequency 62 Hz, f3 at 64.2 Hz
- material: 18 mm birch plywood with 13 plies
The drawing dimensions the baffle (470 × 714 mm) and the side walls of the wedge but gives no overall dimensions. We do not derive them ourselves.
Drivers
Link to section “Drivers”-
Original driver
1 × P.Audio SN 15MB
Woofer
-
Original driver
1 × P.Audio BM-D450
Tweeter
-
Original driver
P.Audio PH 2420
Horn
-
Original driver
PAP VXM 2k3
Crossover
Enclosure
Link to section “Enclosure”- Enclosure type
- Bass reflex · How does it work?
- Shape
- Wedge (monitor)
- Ports
-
- 2 × slot port 150 × 47 mm length 18 mm“2 x Ports: 150 x 47 x 18 deep”
- Material
-
- Birch plywood, 18 mm – specified: Birch plywood, 13 plies (“13 Laminate 18 mm Birch Ply”)
Build plan
Link to section “Build plan”We link to the original plan and do not host other people’s drawings.
-
Open original document
XM 15 – Plan-Seite mit Zeichnungen auf Speakerplans.com (englisch)
Official source · accessed on 13 September 2026
Rights of use not stated – we only link
Plan access: Free
Pros and cons
Link to section “Pros and cons”Pros
- Complete driver complement including crossover
- Volume, tuning and ports given
Cons
- No overall dimensions, no sensitivity
- Crossover frequency only inferable from the crossover name, not stated
Sources
Link to section “Sources”-
Tier A · primary source
Speakerplans.com – XM 15 (Mid Top Plans)
Rog Mogale · Speakerplans.com · 2004 · accessed on 13 September 2026
Three drawings with title block (© 2004 Rog Mogale). No statement on usage rights.
-
Tier B · secondary source
Speakerplans.com – Speaker plans (overview)
Rog Mogale · Speakerplans.com · accessed on 13 September 2026
Overview with Horn Plans, Sub Plans and Mid Top Plans. The plans are embedded as images (drawings) on the individual pages.
Usage rights of the plan: Rights of use not stated – we only link. Added on 14 September 2026, last updated on 14 September 2026.