Overview

The Foxhole MT is a sealed two-way meant for a desk, not a concert. The goal was an honest near-field response that measures flat without DSP or room correction — just a passive crossover designed against real measurements.

A sealed alignment was chosen for its predictable low-frequency rolloff and forgiving placement near walls. The trade is reduced deep bass, which is fine on a desk where a subwoofer can take over below 60 Hz.

Design goals

  • Flat on-axis response ±3 dB from 70 Hz to 16 kHz at 1 m
  • Sealed enclosure for a clean, gradual bass rolloff
  • Passive crossover only — driven directly by a small amplifier
  • Buildable in two weekends with hand tools and a router
Frequency response 58–20,000 Hz (±3 dB)
Sensitivity 84 dB / 2.83V / 1m
Nominal impedance 8 Ω
Enclosure volume 7.5 L sealed
Click a flag to buy. Total: €208.00
Component Qty Unit Unit Price Total Notes Buy
SB Acoustics SB15NRXC30-8 midwoofer 2 €39.00 €78.00 5.25" paper cone, smooth breakup
SB Acoustics SB26STCN tweeter 2 €28.00 €56.00 1" textile dome
MDF 18 mm sheet 1 €22.00 €22.00 One 1.2 × 0.6 m sheet covers a pair
Crossover components (caps, coils, resistors) 1 €34.00 €34.00 Per pair, air-core coils on the tweeter
Binding posts + internal wire 2 €9.00 €18.00

Cut and dry-fit the panels

2 h
  • Label every panel — internal vs external faces matter once you chamfer the driver cutout.

Glue up the enclosure

1 h + cure

Route the driver recesses

1.5 h
  • Take the chamfer in two passes — MDF tears out if you rush it.

Build and tune the crossover

3 h

Final assembly and measurement

1 h
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