Greetings, bassists in search of cool, convenient tones. What we have here is the incredibly useful Phil Jones Bass Bighead HA-1 "Mobile Amp and Audio Interface". It's in very good condition - a couple of minor blemishes on the casing, and the rubber feet on the bottom seem to have migrated a little. I didn't want them to come off if I tried to move them back, so I just left them be - they still do their duty. This little wonder works like it should, and sounds excellent - it's the perfect solution for quiet practice, and it's also great for recording, as the hookup-to-computer capacity is simple and great-sounding.
Includes everything in the pictures - the Bighead, the carry bag, a USB-A to mini-usb A cable (for charging,) and the original box.
From the manufacturer:
The PJB BigHead is not big at all. In fact it is barely larger than an iPhone. The “Big” is about the sound. It functions first as an awesome bass headphone amplifier with 2 band EQ ( +/- 18db @ 60 Hz and +/- 18dB @ 5KHz) set for optimization of all kinds of bass instruments.
Unlike consumer electronic MP3 players and smartphones that have very small power output of around 20 milliwatt to drive headphones, the BigHead has more than 10 times the power. This contributes to a far more exhilarating listening experience with increased resolution and dynamics. Even if you are just listening to music, the BigHead will be a great improvement to your regular headphones, adding more listening pleasure.
A more important function of the BigHead is being a recording tool both in digital and analog. As an Analog Digital Converter, it has the finest BURR BROWN digital components. The USB out is 48KHz 16Bit digital conversion. In other words, recording your bass into Pro Tools will give you exactly what you wish for and absolutely nothing else.
Maybe you need an analog preamp. The Big Head can do that too. It will provide up to 12dB of gain and better than 96 dB signal to noise ratio. Just use the headphone out jack to feed an amp or mixer. It is also a perfect match with PJB powered monitors, the PB 100 or PB 300.
It has an internal lithium-ion rechargeable battery that is fed by its USB jack, so any computer or appropriate cell phone charger can charge it in less than 3 hours, but it can play for up to 8 hours.
Specs:
Model HA-1
Power Output 200mW (100mW+100mW)
Controls Master Volume, Input Gain, Treble/Bass for Instrument Input, digital signal Interface
Power Internal lithium-ion Rechargeable Battery or USB Power
Dimension 2.5 x 5.3 x 1”/ 65 x 135 x 25 mm (WxDxH)
Weight 0.5lbs / 240 g
Dimension 2.5 x 5.3 x 1”/ 65 x 135 x 25 mm (WxDxH)
$145 shipped CONUS. I take PayPal. No trades, please.


Includes everything in the pictures - the Bighead, the carry bag, a USB-A to mini-usb A cable (for charging,) and the original box.
From the manufacturer:
The PJB BigHead is not big at all. In fact it is barely larger than an iPhone. The “Big” is about the sound. It functions first as an awesome bass headphone amplifier with 2 band EQ ( +/- 18db @ 60 Hz and +/- 18dB @ 5KHz) set for optimization of all kinds of bass instruments.
Unlike consumer electronic MP3 players and smartphones that have very small power output of around 20 milliwatt to drive headphones, the BigHead has more than 10 times the power. This contributes to a far more exhilarating listening experience with increased resolution and dynamics. Even if you are just listening to music, the BigHead will be a great improvement to your regular headphones, adding more listening pleasure.
A more important function of the BigHead is being a recording tool both in digital and analog. As an Analog Digital Converter, it has the finest BURR BROWN digital components. The USB out is 48KHz 16Bit digital conversion. In other words, recording your bass into Pro Tools will give you exactly what you wish for and absolutely nothing else.
Maybe you need an analog preamp. The Big Head can do that too. It will provide up to 12dB of gain and better than 96 dB signal to noise ratio. Just use the headphone out jack to feed an amp or mixer. It is also a perfect match with PJB powered monitors, the PB 100 or PB 300.
It has an internal lithium-ion rechargeable battery that is fed by its USB jack, so any computer or appropriate cell phone charger can charge it in less than 3 hours, but it can play for up to 8 hours.
Specs:
Model HA-1
Power Output 200mW (100mW+100mW)
Controls Master Volume, Input Gain, Treble/Bass for Instrument Input, digital signal Interface
Power Internal lithium-ion Rechargeable Battery or USB Power
Dimension 2.5 x 5.3 x 1”/ 65 x 135 x 25 mm (WxDxH)
Weight 0.5lbs / 240 g
Dimension 2.5 x 5.3 x 1”/ 65 x 135 x 25 mm (WxDxH)
$145 shipped CONUS. I take PayPal. No trades, please.

