because performance matters

BP1-Bass Preamp



BP1 without Wireless Input


Available on backorder

BP1 with Wireless Input


Available on backorder

Additional information

Weight 3 kg
Delivery time

2-3 weeks at the moment, due to high demand

 The preamp from our BAS1 Bass System – on the floor! 

 BP1 crams the preamp and output stage from our BAS1 Bass Preamp System into a compact stompbox format with zero sonic compromises.

 The BP1 adds definition in the Low mid-section to your bass sound. It will make your sound sit in the mix with the right definition and tons of dynamics.

With the built-in transformer balanced, studio-quality DI, you will no longer have to use low-quality DI’s at venues that make your bass sound dull, two-dimensional, and uninspiring.

  •  Hi-Z Cable Input
  • Transformer-balanced gold-plated Neutrik XLR Wireless Input
  • Transformer-balanced gold-plated Neutrik XLR DI
  • Adjustable Gain and Level
  • Switchable audio loop
  •  Transformer-balanced Tuner Output
  • 9VDC output for powering your tuner
  • Unique RFI protection and Silent Switching
  • 10 Year Warranty
  • Road-ready, zinc-plated steel enclosures


BP1 Bass Preamp
BAS1 Bass System


Mark King

The Bass Preamps from Caveman Audio is a serious bit of kit!

I am very impressed.”

Caveman Audio Gear:
BAS1 Bass Channel

Ida Nielsen

“My brand is BASS, I’m associated with BASS.

And I have to be 100% sure that I deliver the
best BASS sound possible to my audience.

That’s why I use Caveman Audio Products”

Caveman Audio Gear:
BP1 Bass Preamp

Janek Gwizdala

“Lows, mids and highs: Clarity!

Just plug it in, instant hit.

The nuanced response I’m getting makes it a necessity on my board!”


Caveman Audio Gear:
BP1 Bass Preamps
BP1 Compact Bass Preamps

Jahmal Nichols

(Gregory Porter, Jon Faddis, Frank Foster and many more)

Jahmal Nicols uses caveman preamps on the stage and in the studio.

Caveman Audio Gear:
BP1 Bass Preamp


 “The BP1 and BP1 Compact are superb bass guitar preamps: they deliver slightly different audio performances but both are of the highest quality and suitable for live and/or studio. (…) Powered up, both were essentially silent.

Playing bass through the BP1 for the first time was a revelation, the pedal delivering a crisp, clear definition to every note, most notably in the bass and low midrange, without ever sounding harsh. The Compact delivered the same clear definition and gain‑driven saturation.

The Caveman Audio BP1 and BP1 Compact are both superb bass preamps that deliver sonic performances which completely justify their price.”

(Bob Thomas, Sound On Sound)

Read the Full BP1 & BP1 Compact Review…


Ida Nielsen live with her BP1

BassTheWorld tests BP1

Meet the BP1 and BAS1

BP1 Compact according to Janek Gwisdala

BP1 Compact ON/OFF Comparison by Janek Gwizdala

Rogier van Wegberg with his BP1 Compact



With the built-in transformer balanced, studio-quality DI, you will no longer have to use low-quality DI’s at venues that make your bass sound dull, 2 dimensional, and uninspiring.

This is a no-brainer pedal with only Gain and Level controls. Simply plug your bass into BP1, trim the Gain and Level to fit your taste, and experience the mind-blowing tone this unit has to offer.

We added a switchable audio loop in case you use additional stompboxes or other external equipment to make sure the sound of BP1 is never compromised.

The Radio/Wireless input and all outputs use custom-made audio transformers. In general, only the finest components are used in this stellar preamp design.

To make life even easier for you, we designed the BP1 with a power supply that will work anywhere on the planet.


Dimensions (metric) : 220 x 145 x 40/65 mm (WxDxH)
Dimensions (imperial) : 8.66” x 5.71″ x 1.57″/2.56″ (WxDxH)
Weight: 2 kg / 4 lbs. 7 oz.
Power requirements: 100-240VAC 50/60Hz


 The BP1 features the famous Input Buffer that we have used in our Custom Shop Systems for years. The main function of the Input Buffer is to make your bass guitar sound as if it was connected directly to your amp.

When you use the loop of the BP1, your bass guitar will not be loaded incorrectly from your stompboxes, it will still “see” the Input Buffer.

“This is a basic version of our BAS1 Bass Preamp System – with a switchable loop to isolate your additional stompboxes. Simply the perfect Bass Preamp/DI for small gigs and traveling.”

Steen Skrydstrup

Steen Skrydstrup



Subscribe to our monthly newsletter and get free expert tips from Tone Expert Steen Skrydstrup. Join us “behind the scenes” and get access to the same know-how and expertise that we provide to some of the most respected artists in the world.