O1 V digital mixer by Yamaha
The 01V provides a total of 24 inputs: 12 mono input channels (1 through 12), 2 stereo input channels (13/14 and 15/16), and 8 digital inputs (17 through 24) by means of an Option I/O card. The stereo output signal is available from the analog STEREO OUT, coaxial DIGITAL STEREO OUT, and can be assigned to the analog OMNI OUTs and Option I/O digital outputs. The four bus outputs and four aux sends can be assigned to the analog OMNI OUTs and Option I/O digital outputs. The Effect 1 and Effect 2 buses feed the onboard stereo multi-effects processors, whose signals are returned via effects returns 1 and 2, which feature four-band parametric EQ. Input channels 1 through 12 feature balanced XLR and phone jack connections, with switchable phantom powering. Input channels 13 through 16 feature phone jack connections. Input channels 17 through 24 are accessed via an Option I/O card. Full-feature input channels 1 through 16 feature an attenuator, four-band parametric EQ, dynamics processor, delay, and can be assigned to aux sends 1 through 4 and effects sends 1 and 2. Simplified input channels 17 through 24 feature an attenuator, two-band parametric EQ, and can be assigned to aux sends 1 and 2 and effects sends 1 and 2. Input channels 1 through 8 and 17 through 24 can be swapped, so that Option I/O digital input signals appear on full-feature channels 1 through 8. Input delays can be used for microphone-placement compensation, while output delays can be used for delay-compensation in multi-speaker systems. The number of input channels can be increased by digitally cascading two 01Vs together. Option I/O digital outputs can be configured as bus outs, aux sends, input channel direct outs, or stereo outs. So although the 01V is a four-bus mixer, assigning the four buses and four aux sends, or the channel direct outs to the Option I/O eight outputs allows eight-track simultaneous recording.