The Torpedo Studio…

is the next generation of the world-acclaimed VB-101, this is the pinnacle of speaker and miking simulation – the ultimate load box! Its new features notably include a new load box with increased admissible power, a switchable impedance (4, 8, or 16 Ohms), and the possibility to choose between resistive and reactive load box. Its new, enhanced design makes it a more advanced, much lighter successor to



The concept

You love the sound of your amplifier pushed right to the magic sweet spot where the best tones are. Until now, the only available option was blasting your sound through a 4×12″ to properly excite a microphone. Enter Torpedo, the simplest and most realistic way to get your sound to your audience. Use the amp you love!

Everything that makes a real amp rule over all the other alternatives is retained. You can even record silently late at night ! Gone is the backache from the loadout, complaints from neighbours, venue staff or even bandmates and the frustration of not being able to sound at one’s best trying to reduce the volume.


DynIR – The tech behind Torpedo

Highly realistic speaker simulation is achieved by use of convolution. Two notes started from that technology and brought it much further, to accurately reproduce the characteristics of the whole miking chain with the DynIR technology.

Many parameters influence the sound of your guitar or bass rig when it comes to recording. Taking good care of the cabinet selection and miking will dramatically improve the sound of your takes. The Torpedo simulation reproduces the tiniest variations of a cabinet behaviour (such as its frequency response). Move the microphone in the virtual studio room thanks to the Torpedo IR synthesis: all the settings you need to achieve great recordings are here.

Load box with adjustable impedance

Use your amplifier without speaker cabinet thanks to the load box of the Torpedo Studio. Its adjustable impedance of 4, 8 or 16 Ohms and its high admissible power (150W) makes it suitable for any amp. The reactive impedance faithfully imitates a speaker, allowing the amp to work exactly as if it was connected to a speaker cabinet.

Dual mono/stereo miking

combined simulation of 2 cabinets + 2 microphones for optimal mixing. Position two different microphones before your speaker, or before two different speakers. Mix the two simulations to send them to the stereo outputs

Post-FX section

when recoding guitars and basses it is common to apply a few effects to shape the sound before it is sent to the PA or recorder. The Studio comes with a powerful semi-parametric EQ, and exciter, a compressor and a wonderful reverb.


Control your Torpedo & access the Two notes Boutique

With its clear and intuitive interface, Torpedo Remote will give you access to all parameters on your Torpedo, including loading and saving presets, loading new IRs, and updating the unit’s firmware. You can pick any speaker cabinets from the Two notes Store, preview them on your own tracks in real time, and choose to buy the ones you prefer.

Arcade or Simulation mode

We borrowed the concept of Arcade VS Simulation from the world of video games.
The Arcade mode is usually the easy way to, for example, drive a race car. You can hit obstacles, other cars, you can still win the race. We recommend that for your first experience with The Torpedo Studio you start with the Arcade preset mode to get more familiar with the concept of virtual miking.
The simulation mode is not for beginners and requires more experience and knowledge about how the car actually works, depending on many tiny but still important parameters (weather, type of tires, track design…). In that preset mode you will gain access to the full list of parameter, to fine tune your sound and make it perfect to your ears.


Connect your guitar or bass and effects to your amplifier as you are used to, then connect your amp to the Torpedo Studio instead of a speaker cabinet. The Torpedo Studio can then be connected to a mixing board and PA, or to a sound interface for recording, in the studio or at home. You can also use headphones for direct monitoring. An optional speaker cabinet can be connected to the Thru output.

You can also use the Torpedo Studio with a preamplifier, or as an external effect processor in a studio or home studio environment. The large choice of available analog or digital inputs and outputs allows the Torpedo Studio to work in any situation.




  • Amplifier input: Jack 6.35 mm (1/4) unbalanced (TS, Tip/Sleeve), to connect the speaker output of your tube or solid state amplifier
  • Speaker Thru: Jack 6.35mm (1/4”) unbalanced (TS), to connect an optional cabinet instead of using the internal load box)
  • Line inputs: 2 x Combo XLR – Jack 6.35 mm (1/4”) balanced (TRS)/unbalanced (TS)
  • Line outputs: 2 x XLR balanced
  • Headphones output: Jack 6.35 mm (1/4”) balanced (TRS) stereo
  • Digital inputs: AES & S/PDIF 2 channels input
  • Digital outputs: AES & S/PDIF 2 channels output
  • Wordclock sync BNC
  • MIDI In, Out/Thru
  • USB port


The Torpedo Studio is fully controllable via MIDI. Program Changes are used to change presets. Control Changes are used to control the parameters of the Torpedo Studio.

The Torpedo Studio comes with a selection of 50 Two notes cabinets and much more

  • 2Notes CSG : Two notes Custom 1×12″ ElectroVoice® EVM12L
  • Alichino : Cornford® Harlequin 1×12″ OB Celestion® Vintage 30 UK
  • Angl VintC : Engl® 4×12″ Celestion® V30
  • Bayou : Jenkins® Sound Lab 2×12″ OB Eminence® Patriot Swamp Thang
  • BDeLuxe : Fender® Blues Deluxe 1×12″
  • Blonde 63 : Fender® Bassman ’63 Blonde Tolex Piggy Back 2×12″
  • Brit 65C : Marshall® 1965A 4×10″ Celestion® G10L-35 closed back
  • Brit 650 : Marshall® 1965A 4×10″ Celestion® G10L-35 open back
  • Brit Std : Marshall® JCM900 2×12″ Celestion® G12T
  • Brit VintC : Marshall® Slash Signature 4×12″ Celestion® V30 closed back
  • Brit VintO : Marshall® Slash Signature 4×12″ Celestion® V30 open back
  • Calif C90 : Mesa/Boogie® 1×12″ Celestion® C90 (Black Shadow)
  • Calif StdC : Mesa/Boogie® Rectifier® Standard 4×12″” Celestion® V30 closed back
  • Calif StdO : Mesa/Boogie® Rectifier® Standard 4×12″ Celestion® V30 open back
  • Eddie : Peavey® 5150 2×12″ Sheffield 1200
  • Forest : Elmwood® 2×12″ Celestion® V30
  • Free Rock : VHT® Deliverance 4×12″ Eminence® P50E
  • Free Rock2 : VHT® Deliverance 2×12″ Eminence® P50E
  • Green Tri : Hughes&Kettner® Triamp 4×12″ Celestion® Greenback
  • Jazz 120 : Vintage Roland® JC120 2×12″
  • JubilGreen : Marshall® 2550 2×12″ Celestion® Greenback
  • JubilV30 : Marshall® 2550 2×12″ Celestion® V30
  • Kerozen : Diezel® 4×12″ Celestion® G12K-100
  • R2D2 : Musicman® 112 RD 1×12″ Electro-Voice® EVM12L
  • Silver77 : Vintage Fender® Twin Reverb® 2×12″ orange JBL®
  • SilverJen : Vintage Fender® Twin Reverb® 2×12″ Jensen® C12K
  • StrongBack :
  • The One : Brunetti® Neo1512 1×15″ + 1×12″
  • Twill 15 : VHT® Fat Bottom 4×12″ Eminence® P50E
  • Vibro Utah : Vintage 1961 Fender® Vibrolux® 1×12″ original Utah speaker
  • Vibro V30 : Vintage 1961 Fender® Vibrolux® 1×12″ Celestion® V30
  • Voice 30 : Original Vox® AC30 JMI 2×12″” Celestion® « Silver Bell »
  • Voice 65 : 1965 Vox® 2×12″
  • VoiceModrn : Vox® V212H, 2×12″ Celestion® Alnico Blue
  • Watt FanC : Hiwatt® 2×12″ Fane closed back
  • Watt FanO : Hiwatt® 2×12″ Fane open back
  • XTCab : Bogner® 4×12″ Celestion® V30
  • 2Notes CSB : Two notes Custom 1×15″
  • Alu XL : Hartke® XL 4×10″
  • AZ Ben : SWR® Big Ben 1×18″
  • AZ Work : SWR® WorkingMan 4×10″
  • Calif Low : Mesa/Boogie® 2×10″
  • Fridge : Ampeg® 8×10″
  • Heaven Bot : David Eden® 1×15″
  • Heaven Top : David Eden® 4×10″
  • Marco : Markbass® 2×10″
  • New York : Markbass® 4×6″
  • Rea One : AER® Cab One 2×10″
  • Voice V125 : Vox® V125 2×12″
  • WgrandBlvd : Ampeg® B15N 1×15″ CB Jensen® C15N, Vintage Ceramic

  • EL84
  • EL34
  • 6L6
  • KT88


  • class A / single ended
  • class AB / push pull


  • pentode
  • triode


  • Volume
  • Presence
  • Depth
Settings :

  • Choice of speaker cab and microphone
  • Microphone position (distance, axis, front/back)
  • Variphi: phase control
  • Overload: natural speaker distortion control
  • Dry/Wet

Post-FX :

  • 6-band Semi parametric EQ
  • Exciter (low, high)
  • Compressor (threshold, ratio, attack and release time, make-up gain)
  • Reverb (8 room + 1 custom)
Note: All product names mentioned on this website are trademarks of their respective owners, which are in no way associated or affiliated with Two notes Audio Engineering.

Load box

Reactive or Resistive load (relay),
Nominal impedance: 4 or 8 or 16 Ohms (switch)
Maximum admissible power: 150 W (200 Watt peak)
Cooled by temperature-controlled fan

Inputs / Outputs

Speaker Input : Jack 6.35 mm (1/4″) unbalanced (TS, Tip/Sleeve)
Speaker Thru : Jack 6.35mm (1/4″) unbalanced (TS)
Line Inputs : 2 X Combo XLR – Jack 6.35 mm (1/4″) balanced (TRS)/unbalanced (TS) – Maximum level: 8,7 dBu – Impedance : 20 kOhms
Line Outputs : 2 x XLR balanced – Maximum level: 11 dBu – Impedance : 600 Ohms
Phones : Jack 6.35mm stereo (TRS)

AES/EBU numeric Input/Output
S/PDIF numeric numeric Input/Output
MIDI Input/Output
USB Connexion

Audio Performances

ADC (input) :

  • Sampling frequency : 192 kHz
  • Resolution : 24 bits
  • Noise level : -111 dB (A-weighted)
  • THD : 0.0026%
  • Stereo crosstalk : -109 dB
DAC (output) :

  • Sampling frequency : 192 kHz
  • Resolution: 24 bits
  • Noise levelt : -109 dB (A-weighted)
  • THD : 0.0008%
  • Stereo crosstalk : -106 dB
13Hz- 45 kHz

AES/EBU and S/PDIF to 96 kHz

Internal synchronization , AES/SPDIF ou Wordclock

Latency: (mode Normal) 5.063 ms, (mode Low) 3.064 ms (Line Input à Line Output)

Weight and dimension

Width x Depth x Height: 483 x 250 x 90 (mm)

Weight : 4,5 kg