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Wayne Jones Audio

Regular price $1,099.00 AUD
Regular price $1,199.00 AUD Sale price $1,099.00 AUD
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Introducing the all new WJBPII TWIN CHANNEL BASS PRE-AMP, featuring the option of phantom power on the second channel.

"Listening to endorsees Scott Colley & André Berry I designed this new edition for the endorsee family. Scott needed one channel for his double bass pick up and a second channel for the phantom powered mic he uses on the bass. Andre needed extended treble frequencies. I also made a few of my own changes to the WJBPII.

The WJBPII is designed with a no compromise attitude in Cost, Quality, Components & Features just as are WJ High End High Powered Bass Cabinets." ~ Wayne Jones



  • 2 Independent channels that also can be used together
    Channel 1 – 1/4” stereo/mono input
    Channel 2 – Has the option of phantom power or just use it as a second channel
    2 XLR balanced inputs
  • 2 Input gain level controls with -10dB pad & Input clip Indicators for both channels
  • Optical compressor with level
  • 6 band EQ plus 30hZ boost
  • EQ Band frequencies:
    Band 1 20-300Hz, Centre set at 80Hz
    Band 2 60-1KHz, Centre set at 160 Hz
    Band 3 150-2.5KHz, Centre set at 500Hz
    Band 4 450-8KHz, Centre set at 1.6KHz
    Band 5 1KHz-20KHz Centre set at 5KHz
    Band 6 Centre set at 10KHz
  • Stereo pan control (for use when using 1 or 2 outputs to 1 or 2 WJ 1000 Watt Powered 2×10 cabs)
  • Channel selector Independent volume control of both channels
  • Master Stage volume Pre amp Output Indicator


  • Outside power supply to ensure studio quality noiseless operation, switchable 115/230V
  • Output – Stereo XLR balanced outputs out with Level Control, pre or post EQ button & 1/4” unbalanced. Works in conjunction with the pan control
  • Stereo/Mono FX loop
  • Foot switch mutes all output for silent tuning
  • DI pre or post with level control
  • Ground Lift for DI
  • Aux in – 1/4” or mini jack
  • Headphone out with level control
Master Outs 2 balanced XLR (recommended) outs for connection to WJ powered cabinets or to separate power amps. Balance control on from panel will affect these outputs.

Also a choice of 2 Unbalanced 1/4″ outputs for same function. (not recommended as output is lower).

All master outs can be used together as a pair or individually with balance control set to the respective output.

FX Send & Return – Stereo or mono.

Foot switch – Mutes all output

DI Output – Balanced XLR out with Level control & pre or post EQ button

Aux Input – Stereo input, mini jack & 1/4” Phono. You can use this to plug items such as iPad, iPhone backing tracks etc. to play along with.

Headphone With Volume Control – Plug in your headphones to practise with. You can use the WJBPII by itself without plugging into a power amp.

Dimensions – 10 x 30 x 25 cm / 3.9 x 11.8 x 9.8 in

Weight – 3.2 kg / 7 lb

Rack Mount Ears – Included