Joseph Crowe
Custom Speaker Design for Mr. Nilsson
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Includes:
- All funds in CAD currency
- Physical design to match physical size and be inspired by TAD TD-2404
- Horn flare geometry to use ES-curvature where possible
- Horn mounted from inside the bass cabinet
- Joseph Crowe to purchase JBL 2265G-1 bass driver from 'The Speaker Exchange' for actual testing in demo bass cabinet
- Joseph Crowe to Modify 2265G-1 for 16ohm operation
- Use B&C DCX-464-16 for mid-high coverage
- Crossover design including electrical schematic, BOM, part number list
- Test results including frequency response, phase response, step response, burst decay, off-axis polar map
- Bass cabinet uses traditional reflex alignment and constructed using manual wood working methods
- Bass cabinet and horn assumes use of 24mm thick baltic birch plywood
- Stand Design
- Design review meetings (Google Meet, or Messenger) sharing Solidworks screen
- Design is for personal use only (commercial license available separately)
Specification:
- 16 ohm nominal system impedance
- 750w RMS
- Frequency Range (-10 dB): 35 Hz Frequency Response (±3 dB): 40 Hz - 20kHz
- Maximum System SPL2 : 126 dB
- Predicted weight per cabinet: 36 kg (80 lb) (not including stand)
- Physical Size: 660mm x 798mm x 614mm (HxWxD) (not including stand)
Passive Crossover
Design into the crossover replaceable shunt resistors to allow for some flexibility...
Option A) Bi-Amp Mode between the LF & HF, no padding on HF (109.7dB sensitivity on HF)
Option B) Bi-Amp Mode same as above except -10dB fixed resistor L-pad circuit (to avoid AC Mains hum from HF amplifier(s)) (99.7dB Sensitivity on HF)
Option C) Single Amp Mode with -15dB fixed resistor L-Pad on HF to match attenuation with LF level (95dB@1watt system sensitivity)
Documentation Includes:
- PDF Drawings for bass cabinet (Assembly and detail drawings for each panel)
- 3D CAD files for entire speaker in any global file format (.iges, .step, .parasolid, .STL etc.)
- AutoCAD dwg 2D files for bass cabinet
- Crossover Schematic PDF format
- Crossover board assembly drawing with wiring path
Lead Time 12 weeks from date of order
Excludes CAM programming (can be quoted separately)
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Materials
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Dimensions
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