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README.md

Specs

High end compact shelf speakers

  • Dimensions 35x20x34cm
  • Wavecor WF146WA05 as the woofer
  • Dynavox AMT-1 as the tweeter
  • Crossover around 4kHz
  • Power handling 55W
  • Nominal impedance 4 ohm

Order kits from http://www.lautsprecher-berlin-shop.de/epages/62721881.sf/de_DE/?ObjectPath=/Shops/62721881/Products/amt-box

NAD 3045 delivers just enough juice for these speakers.

Enclosure

Generate toolpaths, following assumes 18mm plywood:

python3 enclosure.py --swap-axes --workpiece=front | tee amt-box-1-front.ngc amt-box-2-front.ngc
python3 enclosure.py --swap-axes --workpiece=side | tee amt-box-1-right.ngc amt-box-2-left.ngc
python3 enclosure.py --swap-axes --workpiece=back | tee amt-box-1-back.ngc amt-box-2-back.ngc
python3 enclosure.py --swap-axes --workpiece=cap | tee amt-box-1-top.ngc amt-box-1-bottom.ngc amt-box-2-top.ngc amt-box-2-bottom.ngc
python3 enclosure.py --swap-axes --workpiece=side --port-enable > amt-box-1-left.ngc
python3 enclosure.py --swap-axes --workpiece=side --port-enable --port-mirror > amt-box-2-right.ngc
python3 enclosure.py --workpiece=support | tee amt-box-1-support.ngc amt-box-2-support.ngc

Prepare approx 40cm by 90cm piece of plywood to accommodate following:

  1. Mill support (8cm), this should leave enough room for clamps
  2. Mill front (30cm)
  3. Mill side (20cm)
  4. Mill top (20cm)

Cut another 40 by 80cm piece:

  1. Mill bottom (20cm), again this should leave enough room for clamps
  2. Mill back (30cm)
  3. Mill side (20cm)

Glue parts with wood glue (PVA). Finish with

Filter

Use single sided PCB, mill traces with the supplied circuit. Use possibly liquid tin to increase the cross section of traces.