Delivering old-school acid bass lines, the Xhun Audio ZeroBox, is an accurate analog modeling simulation of the legendary Roland TB-303, the iconic sequencer-driven bass-line synthesizer that defined an era. This software virtual instrument plug-in utilizes physical modeling with Advanced Component Simulation (ACS) to preserve the original architecture featuring all of the micro-instabilities and imperfections of the original instrument.

Additionally, several improvements and circuit-bends have been added, bringing the synthesis engine a step ahead. The redesigned sequencer front-end includes a full set of modulation, analog saturation, and multiple types of distortion. The 130+ factory presets cover a wide range of genres, well suited for any electronic music scenario. The software works on Mac and Windows systems, and operates in VST2, VST3, and AU formats.

Recreation of Roland TB-303    Physical Modeling Simulation    ACS Modeling of Synthesizer Components    Preserves Quirks of Original    Embedded Analog Sequencer    Resonant Low-Pass Diode Ladder Filter    Insert and Master FX    Age Selector Circuit    130+ Factory Presets    Mac/Windows, AU, VST2, VST3

• Physical modeling simulation of real analog hardware, achieved by the adoption of the Advanced Component Simulation (ACS) approach—oscillators, filters, envelopes, and more are built preserving their original architecture, featuring all the micro-instabilities and imperfections of the analog technology
• Full 64-bit processing accuracy for every single aspect of the simulation
• An all-in-one complete setup: monophonic analog bass-line synthesizer + embedded analog sequencer + analog and digital insert/master effects

• An aliasing-free analog modeled oscillator proving the same capacitor charging/discharging responses as found in the original analog circuits, featuring sawtooth and square waveforms with blending (morphing) control
• A separate control for the oscillator waveshaping (from naive to analog supersaw / pulse width modulation)
• A legendary 4-pole resonant, analog low-pass diode ladder filter (modeled by the adoption of the topology-preserving transform / zero-delay feedback approach) proving all the original quirks, nonlinearities, frequency responses (also at extreme modulation scenarios), analog clipping
• Two analog envelope generators (MEG/VEG) proving the same capacitor charging/discharging responses as found on the original analog circuits
• Analog component age selector. Choose the virtual age of the components used in ZeroBox, and as a consequence, its resulting overall instability
• An extended operative range (compared to the original) for several knobs and internal components
• Built-in circuit-bends as found in different hardware clones and experimental ones never seen before (while 100% preserving all the original functions)
• An exclusive low-frequency-oscillator (LFO) with frequency (from 0.05 Hz up to 20 Hz) and destination amount controls, affecting the oscillator waveform blending, waveshaping and filter cutoff frequency
• Adjustable high-pass filter cutoff frequency
• Adjustable filter envelope (MEG) minimum decay time
• Adjustable slide time control
• A VCA envelope (VEG) smoother control
• Polarity inverter control, useful to achieve different sound flavors when using an asymmetric (biased) distortion unit

Three ways of control for studio and/or live scenarios:

• Sequencer Off: Individual notes are MIDI triggered directly by the DAW
• Sequencer (Pitched): The internal sequencer (8 scenes/patterns per preset) is MIDI triggered and tuned
• Sequencer (KeyTrig): Each of the 8 sequencer scenes / patterns per preset are assigned to different MIDI keys

A multimode (PTC/KTG) embedded digitally controlled clock generator and sequencer, featuring the same internal pulse timing and behavior of the original one, with:

• Mode selector (normal/triplet)
• Beat pulse-divider selector
• Tempo external controls
• Swing amount control
• Step gate control
• Step pitch control
• Step octave selector
• Step slide control
• Step accent control
• Steps number (from 1 up to 16) selector

Including an insert effect slot with the possibility to choose:

• CHOR-S unit (rack): Expressive stereo chorus effect
• FLANG-R unit (rack): Expressive stereo flanger effect
• X-TREME unit (rack): Accurately modeled, ground-shaking tube distortion effect
• SOLIDA unit (rack): Accurately modeled transistor distortion effect
• PHEEBEE unit (rack): Expressive digital foldback distortion effect
• CRUSH-R unit (rack): Creative digital bitcrusher effect

Including a master effect slot with the possibility to choose:

• D-LAY unit (rack): Tempo-synced stereo delay effect
• REEVERB unit (rack): Resonator-based electronic reverb effect

• Multiscene loader engine with 8 scenes per preset
• Including 130+ ready-to-use factory presets collection covering multigenre styles
• Multicolor synth panel (silver grey or acid yellow)
• MIDI automation
• Support for sample rates from 44.1 to 192 kHz
• Available in multisize GUI resolutions

Related Questions and Answers

Q: 1. Can the built-in preamp be completely bypassed so that the output of the cartridge goes directly to the output terminals on the back of the turntable?

A: Yes, the built-in preamp on the AT-LP5X can be bypassed when the preamp selector switch is set to Phono. When Line output is selected the internal preamp is active. The Phono setting is used when you are connecting to an amp with a dedicated phono input which will have its own preamp built-in or if you want to use a separate external preamp. The Line output setting is used when connecting the turntable to an amp that does not have a dedicated phono preamp so the internal preamp on the AT-LP5X will be engaged.

Q: 2. I want to convert the SDI 1080i signal from my switcher to a 1080p signal to my live streaming server for YouTube. Will this unit do that?

A: I do technical support for Symbiosis, Decimator's master distributor in the US. The Decimator 2 is definitely capable of doing what you are describing if your streaming server has HDMI input. If you bring the 1080i signal in on the SDI input you can configure the Decimator 2 to output 1080p over HDMI.

Q: 3. I have a video switcher with Program out via SDI, I am told there is embedded audio running out with the SDI video signal. Will this unit work for my application? I want my SDI PRGM output from my switcher to feed into a standard LCD TV monitor via HDMI with video and sound. I want to set up client monitors in the Greenroom down the hall .. All my SDI feed does for my consumer HDMI TV is video only...Thanks

A: Hi James, This is Jules from Symbiosis, Decimator's Master Distributor for your territory. The Decimator 2 will all you to pass both video and embedded audio from the SDI input to the HDMI output for monitoring on your LCD TV. Just in case you need it, there is also a pair of analog line level outputs for driving an amplifier or set of active speakers as well. I hope this helps. Jules

Q: 4. I need to convert PAL signal to NTSC signal so I can send it into my video switcher then out to my projector. I am using this in the US, but my client is sending me a Broadcast in PAL. for the audience to view. can this unit do this?

A: Yes, the Decimator 2 3G/HD/SD-SDI to HDMI Converter with Built-In NTSC/PAL Downscaler will be able to convert SDI in PAL to NTSC in a composite down scaled format.

Q: 5. Will this work with a gopro hero 5 black?

A: Yes, the Comica Audio VM10 PRO Mini Cardioid Digital/Analog Shotgun Microphone is compatible with the GoPro HERO5 Black when used with the GoPro Pro 3.5mm Mic Adapter (B&H # GO35MA).

Q: 6. We are converting HDMI to SDI using a BMD micro converter so we can send a teleprompter PC output to our router. However, our teleprompters only have composite BNC. Can we use this to convert the SDI signal coming from our converter to composite BNC and send it to our router?

A: Yes, the Decimator 2 will be able to convert an SDI signal to composite BNC.

Q: 7. Will this mic work in digital mode, using only a usb-c cable, to connect to a DJI Osmo Action 3 or 4 cameras? Thanks

A: Yes, the Comica Audio VM10 PRO Shotgun Microphone will work with a USB-C cable to connect to a DJI Osmo Action 3 and 4 cameras.

Q: 8. Can U3C be used even with a dynamic microphone that doesn't need phantom power with phantom power switched off?

A: The Xvive Audio U3C Set Wireless Plug-On System for Condenser Microphones is only meant for condenser microphones, and the manufacturer specifically advises against connecting dynamic microphones to this system. It does not appear that phantom power can be switched off on this version and therefore has the potential to damage dynamic microphones.

Q: 9. What speakers can I connect to this and with what connector?

A: Powered monitors via a 3-pin female XLR connector.

Q: 10. Is the internal battery replacable?

A: The internal batteries in the Xvive U3C system are replaceable but the will need to be replaced by the manufacturer or an authorized service center.