Jaycar 6.5inch Carbon Fibre Cone Woofer

Catalog number CS2240

"This quality 165mm driver has a carbon fibre woven cone, a huge power handling of 80 watts RMS and an extended smooth frequency response right up to 5,500Hz. Excellent for a quality two way system or as a mid bass woofer in a high power high quality car audio application. Driver includes Kapton voice coil and barium ferrite magnet."

- Nom impedance: 4ohms
- Power handling: 80watts rms
- Freq range: 43Hz - 5500Hz
- Sensitivity: 89dB 1watt 1metre
- Voice Coil Resistance (Re): 3.79ohm
- Resonant frequency (fs): 43Hz
- Mechanical Q factor (Qms): 9.758
- Electrical Q factor (Qes):0.471
- Total Q factor (Qts): 0.449 ]
- Equivalent Volume (Vas): 15.1Lt
- Cone Area (square meter): 0.0133
- Mounting Depth: 75mm

Vifa D26TF-05-06

These are the Specs from Vifa them selves:

• Fabric Diaphram
• "Butterfly" VC Assembly
• Magnetic Fluid
• Prepared for customised front
• Uncoloured sound

You can download the data sheet here , Vifa emailed me this datasheet.

Some test boxes I made to decide if I wanted to go sealed or vented:

The response plotted in WinISD:

I am tuning it to 44Hz in a 21L box and a 4.5kHz crossover point at 12dB.

The crossovers:

Getting there...

I used Tee-nuts to fix the drivers to the front panel, they are much better than a plain screw:

This shows the port I made with acrylic tube:

The inside with stuffing and horizontal brace:

Spikes:

Done!: