Red x0xb0x Roland TB303 Clone

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Lady Ada x0xb0x TB-303 Acid Clone Analog Synth

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Perfect Circuit Audio (RSS)

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x0xb0x Synthesizer TB-303 Clone

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Lady Ada x0xb0x TB-303 Clone

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Perfect Circuit Audio (RSS)

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x0xb0x DIY Kit

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"The x0xb0x Bass Line Synthesizer is a faithful reincarnation of Roland’s classic TB-303 Bass Line Synthesizer. x0xb0x is a Monophonic Synthesizer with 4 octave VCO and Adjustable cut-off frequency, resonance, envelope modulation, decay, and accent. The x0xb0x features the latest SOKKOS 1.9 firmware.

DIY x0xb0x

The x0xb0x Bass Line Synthesizer Kit is a low-cost alternative to the fully assembled x0xb0x. The x0xb0x Bass Line Synthesizer Kit contains everything you need to build your very own x0xb0x"

x0xb0x synthesizer Silver Aluminum Case

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XoXBoX TB-303 Clone

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No mods on this one.

"The XOXBOX is a reverse engineered Roland TB-303, but is easier to program, has MIDI, more memory than the original, and lots of other features. A more powerful 303 for a quarter of the price of the original?! Not bad.

This XOX is carefully hand built and tuned to 303 specs. Only a dozen were built with the blue face and white LEDs. Power supply for US voltage is included."

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X0XB0X BASSLINE SYNTH/SEQ LTD BLUE PRO

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"This x0xb0x is a limited edition Metallic Blue with Unique face plate & WHITE LED'S / 1 Orange for TEMPO , + Custom Soft touch knob's & Free Bass & resonance boost + Extra low filter + gate on forever mod Switchable from the rear panel, The 4 toggle switches will be neatly mounted on the upper rear left handside of the x0x rear panel..."

X0XB0X BASSLINE SYNTH/SEQ

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"This x0xb0x is a Classic X0XB0X with unique faceplate + Custom Soft touch knob's & Free Bass & resonance boost + Extra low filter + gate on forever mod Switchable from the rear panel."

X0XB0X BASSLINE SYNTH/SEQ

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"This x0xb0x is a limited edition with Unique face plate, Soft touch knobs & Free Bass & resonance boost, Switchable from the rear panel"

ANDY PLEDGER X0XB0X SYNTHESIZER

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"What you are looking at is a professionally built hand made x0xb0x made buy synth builder Andy Pledger, you can check out his website here at http://syntheticmusicsystems.com/ This x0xb0x was made just after i made the inquiry so its not pre made like most x0xb0x's. It also has a custom aluminum case so its not plastic. its only been used once and is in fantastic condition (as if it just came out of the box)"

XOXBOX Bass Line Synthesizer

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xOxbOx Keyboard & Synthesizer

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XOXBOX Roland TB-303 Clone Synthesizer w/Distortion Mod

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Mode Machines x0xb0x Socksbox

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"'The difference of a well made x0xb0x and a Roland TB-303 is probably the same difference as from a TB-303 and another TB-303.'

In other words, the Mode Machines x0xb0x is as close as you're going to get to an original 303. This is not a cheap import or a badly built x0xb0x, this is a genuine Mode Machines product that is built perfectly.

As stated, this model is brand new and has only been taken out of the box for the auction photograph. Also, this is a BLUE LED version."

x0xb0x *blue LEDs* new

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"This one is brand new from Technology Transplant. It will come in the original box with the power supply and 1/8 inch cv/gate cable. This one has blue LEDs and Roland MC-303 style knobs."

x0xb0x Synthesizer TB-303 Clone w/custom Paint

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x0x source x0xb0x

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via Noisebug on Ebay

"The x0xb0x is the most faithful replica of the legendary Roland TB-303 synthesizer. It uses the same components, in the same schematic, to match its sound — perfectly.

The x0xb0x blueprints are the work of a couple of MIT students (now graduates) who set out to recreate the TB-303 as closely as possible.

'An original TB-303 was disassembled and reverse-engineered to verify the schematic. The original transistors were analysed using big expensive curve-tracers to determine their characteristics. We measured every waveform and counted every cycle.'

— x0xb0x creators

The x0xb0x copies not only all of the electrical interconnections inside a TB-303, but incorporates the old, rare analog components, such as 2SC2291 matched-pair transistors and AN6562 op-amps. Consequently, it has earned the reputation of having the most faithful sound of all 303 clones. The difference in sound between a well-made x0xb0x and a TB-303 is about the same as the difference between one TB-303 and another."

LadyAda x0xb0x

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"A brand new Lady Ada x0xb0x built in the USA.

Blue LEDS & run stop buttons."

xoxbox synthesizer TB-303 clone

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"built and purchased from professional x0xb0x builder x0x source in New York. This is a link to their site.
Features:
* Pure analog voice circuitry
* Vintage analog components
* MIDI Play
* MIDI-to-CV/Gate conversion (to control analogue synths)
* EEPROM for 128 banks of track memory/64 banks of pattern memory (no battery)
* Computer download and upload of saved tracks/patterns
* Upgradeable firmware (preloaded latest v1.05. Custom community OSes available.)

Input/Output:
* DINSYNC-in/out
* MIDI-in
* MIDI-out
* MIDI-thru
* CV-out (⅛")
* Gate-out (⅛")
* MIX-in (¼")
* Headphone output (¼")
* Line-level output (¼")
* USB for computer interface & control

Vintage Components:
* 2SC536F transistors
* 2SC1583 and 2SC2291 matched-pair common-base transistors
* 2SK30AO and 2SK30AY JFETs
* AN6562 and BA6110 Op-Amps
* LA4140 Power Amplifier
* 2SA733P hand-selected for high gain
* 1% Thin-film resistors"