The Korg Volca Nubass Vacuum Tube Synthesizer features a sound source based around a vacuum tube oscillator and a classic ladder filter, well suited for producers and performers looking for warm harmonics and huge distortion produced by analog vacuum tubes for the ultimate bass machine.

The Nutube contains two independent triodes; one is used in the oscillator to generate a sawtooth wave or square wave. The other triode is used in the drive circuit of the sub oscillator, adding depth and warmth one octave below the oscillator. The low-pass filter is remarkably dynamic in the way it affects a sound more than just ranging from bright-to-dark. Its wide range of timbral possibilities makes it ideal for a broad variety of electronic music, including the distinctive modulation that can be heard in acid house and techno. The driver circuit uses an analog circuit reminiscent of a classic stompbox, which introduces compression and mild distortion to create a thickness to your bass sound, while the tone knob adds crispiness to the high-frequency range.

The synthesizer can be controlled with its multitouch keyboard or the built-in 16-step sequencer with slide, accent, and transpose functions. The sequencer has 16 memory patches for storing your settings and an Active Step function that can remove or insert steps to help create new bass lines. The unit can receive MIDI from an external controller or DAW via its 5-pin DIN connector. Multiple units from the Volca line can be clock synced with the 1/8" Sync In and Out connectors. The Korg Volca Nubass includes a sync cable and can be powered by the included six AA batteries or with the optional KA-350 AC adapter.

Vacuum Tube Oscillator Circuit    Nutube with Two Triodes    Transistor Ladder Low-Pass Filter    Analog Driver Circuit    Built-In 16-Step Sequencer    16 Memory Patches    Randomize Transpose, Accent, and Slide    Sync Multiple Volca Instruments    Battery or AC Power    Includes Free Music Software Bundle

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Related Questions and Answers

Q: 1. Would the tube work in a Rode NTK? And is this tube manufactured in Germany?

A: This twin- triode tube is made in the Slovak Republic, and is also known as the 6922, which can be used as replacement valve for the Rode NTK microphone.

Q: 2. How long is the power cable on this?

A: The AC power cable included with the M-8S is 10 feet in length.

Q: 3. would this be a good replacement for the tube inside my akg perception 820 mic?

A: Yes that would be the correct tube for your AKG perception 820. The Telefunken E88CC is the same as a 12AX7 which is the tube recommended by AKG for that mic.

Q: 4. Is this a low noise mic pre amp tube ?

A: Yes. The Telefunken ECC83-TK black diamond series preamp tube offers cleaner headroom than the typical 12AX7.

Q: 5. What macro tube would be useful with a 23mm lens? I bought the MCEX-16 but I have to be inches away to get it focus..

A: Both extension tubes will require you to maneuver your lens much closer in order to get a very detailed macro shot, although with the 11mm being shorter, you will have a lot more wiggle room to work with when it comes to focusing at the cost of magnification. The alternative would be a macro lens, which has a good minimum focusing distance without compromising on ease-of-use and magnification factor.

Q: 6. Who makes?

A: This is a genuine Telefunken product.

Q: 7. Is this Telefunken smooth plate 12AX7 tube ? What country and year of production.? Thanks

A: The Telefunken ECC83-TK/12AX7 Black Diamond Series Vacuum Tube is manufactured in Slovak Republic.

Q: 8. Is this Telefunken E88CC the same as a 12AX7A tube?

A: No, the pin configuration is different.

Q: 9. Specifically, I have the 50mm f2 Fuji lens. I need to shoot a bunch of 3X5 index cards. Do I need the MCEX-11 or MCEX-16?

A: FUJIFILM MCEX-11 11mm Extension Tube for Fujifilm X-Mount will be a better combination with your 50mm f/2 lens to make reproductions of a 3x5 index card. Please be aware that you can only focus from the minimum focus distance using an extension tube. If you use FUJIFILM MCEX-16 16mm Extension your lens will only be able to focus on a small segment of your 3x5 index card.

Q: 10. How long is the cable(s)? What is the polarity of the tip/ring? What is the size of the barrel connector?

A: The cable is approximately 3' long. The barrel connector is 2.1 x 5.5mm with a positive tip and negative sleeve.