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Ferrofish B4000+ Authentic Organ Emulator

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SKU: B4000

Product Description

If you can't afford a church but are looking for that authentic organ sound, then the Ferrofish B4000 is the ideal solution! Fully polyphonic and powered by the ARM Cortex M3 and Sharc DSP processors you are sure to get a full flowing, seamless sound that has a huge dynamic range. Not only does it sound just like the real thing, it also feels authentic too! With 9 drawbars you have complete control over your sound, allowing you the ultimate freedom to express yourself.  

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Here's what Synthax say about the Ferrofish B4000+ Authentic Organ Emulator

The Ferrofish B4000+ is a standalone module that produces authentic organ sounds including it's namesake, the Hammomd B4. As well as sounding like the real thing, it also feels like that real thing with it's 9 drawbars which give you to tactile control over your organ sounds as you play.

The B4000+ is fully polyphonic over 3 manuals and is powered by an ARM Cortex M3 and Sharc DSP processors to give you seamless performance without any notes being dropped.

The back panel includes 2 MIDI inputs for connecting keyboards to the lower and upper manuals and a pedal input. The Ferrofish B4000+ also includes a USB port for sending MIDI to Mac or PC and is also used to load patches and firmware uploads. There is also a footswitch input and a single audio in for processing sounds through the onboard effects and a headphone output.

The B4000+ dials will control all the parameters listed on the top of the unit, including sound, percussion, tone, rotor and horn / bass. The onboard effects include the essential rotary, chorus, reverb and compression that you would expect to create that authentic sound.


  • Organ Emulation
  • Three full polyphony manuals supported
  • Percussion including harmonic, attack and decay
  • Tonewheel emulation including leakage and condition
  • Mechanical emulation including keyclick and key contact delay simulation
  • Synthesizer
  • Physical circuit modelling
  • Rotating speakers emulation
  • Tube amplifier emulation (with overdrive)
  • FX section: chorus/vibrato, reverb, compressor
  • External audio input routing through FX
  • Global tuning
  • Envelope attack and decay
  • MIDI keysplit and velocity
  • Basics
  • Nine drawbars
  • Six high resolution metal dials
  • TFT color display
  • ARM Cortex M3 and Sharc DSP powered
  • USB interface
  • Two MIDI inputs
  • Stereo analogue output and headphones
  • Stereo analogue input to FX
  • Expression pedal

Customer Reviews


16 reviews





kenneth17th Mar 2024

Value 5Looks 5Durability 5Sound 5

Mr Michael Workman2nd Jan 2024

not used it much yet to give assesment

Value 5Looks 4Sound 4

Mr Stephen Mckinstray13th Jul 2023

Value 5Looks 5Durability 5Sound 5

Trusted Customer20th Mar 2023

Was dubious at first but now impressed. Drawbars work as anticipated. Good sound and Leslie effect not too bad. Playing via midi through one of my keyboards.

Value 4Looks 3Durability 4Sound 4

Royall Muzik Productionz17th Apr 2022

I’m in love with the sound. I made one Riddim so far and it’s a winner. Can’t wait to hear some vocals on it ❤️🎼🎼🎼🎚🎚🎚✅

Value 5Looks 4Durability 5Sound 5

Trusted Customer19th Jul 2021

The settings are very fiddly and take some getting used to. However, with the right adjustment you can get decent Hammond sounds. The Leslie simulation is good although not the best. I had one incident where the software locked-up causing strange sounds but was cured by rebooting. The unit is solidly built and I think for the price is very good value for money.

Value 5Looks 5Durability 5Sound 4

Stephen Philpott3rd May 2021

Value 5Looks 4Durability 4Sound 5

Trusted Customer23rd Jun 2020

Value 5Looks 4Durability 4Sound 4

Mr Chris Martin Chris Martin22nd Jul 2019

Brilliant.. wanted it to play house of the rising sun etc.

Mr. Paul Davies22nd Jul 2019

Works well over midi from my Roland FP7. Really very good Hammond sounds and loads of parameters to tweak to enable you to get the sound the way you like it. Which in my case is a lovely just beginning to break up growl with a bit of key click. Rotary emulator is pretty good, but not quite as good as the real thing. All in all though, a pretty damn good product!

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Andertons Music Company's Registered Office: 58-59 Woodbridge Road, Guildford, GU1 4RF. Andertons Music Company acts as a credit broker and not a lender and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority. Andertons Music Company is authorised and regulated by the Financial Conduct Authority, firm registration number 716155. Credit provided subject to age and status.