It supports the following standards.
Regardless of which standard you use, you need to download the latest driver software from the web support page and install it.

Windows
ASIO: Up to five sets of inputs and five sets of outputs of stereo audio signals with sampling frequencies of 44.1 kHz and bit depths of 24 bits can be input/output simultaneously.

Mac OS
Core Audio: Up to five sets of inputs and five sets of outputs of stereo audio signals with sampling frequencies of 44.1 kHz and bit depths of 24 bits can be input/output simultaneously.

MIDI is a universal standard, so there are many DJ software programs that support MIDI control, such as the Native Instruments "TRAKTOR" and "TRAKTOR SCRATCH" series, and Atomix "Virtual DJ", etc. For details, contact the DJ software manufacturer.

Change the setting in the computer.

Windows
Using the sound settings in Control Panel, set all sound settings for program events to OFF.

Mac OS X
In the Sound panel of System Preferences, set the sound effect playback device to a device other than DDJ-SZ2.

It is not possible to perform scratch play using Control CD or Control VINYL with the TRAKTOR SCRATCH series on this unit. To perform scratch play using Control CD or Control VINYL, use Serato DJ.

Headroom indicates the maximum level and margin for handling input signals without distortion. In general, it is expressed in decibels (dB) and as this value becomes larger, it is stronger against excess input and sound is less likely to be distorted.

The unit has an auto standby function and while in auto standby status, power supply is not stopped. Also, even when in standby status with the POWER button turned off, power supply is not completely stopped. If this unit is not to be used for a long time, disconnect the power cord of the unit from the outlet.

For details of the auto standby function, see the operating instructions.

In [Utility] mode, set the auto standby function to "Disable". For details, check "Changing settings - Disabling the auto standby function" in the operating instructions.

TRIM
Adjusts the level of audio signals input in each channel.

Channel fader
Adjusts the level of audio signals output from each channel.

MASTER LEVEL
Adjusts the level of audio signals output from the [MASTER1] terminal and [MASTER2] terminal.

Yes, it does. When this unit and a computer on which Serato DJ is running are connected with a USB cable, such operations as starting the playback of tracks in Serato DJ can be controlled using this unit's fader. Connect this unit to a computer on which Serato DJ is running beforehand. This unit does not support a connection with CDJ using the PRO DJ LINK function or by connecting a control cord.

You can use the recording function of the DJ software to record.
If you use Serato DJ, see the Serato DJ Software Manual.
Obtain the Serato DJ Software Manual from Serato's website.
http://serato.com/

If you use DJ software other than Serato DJ, refer to "Changing settings" - "About the setting utility software" of the operating instructions to set the sound output from this unit. For the settings of your DJ software, see your DJ software's operating instructions.

Yes, it can.

Yes. When this unit and the computer are connected and a track is played in iTunes, the sound is input to this unit's channel 1. It cannot be input to other channels. Also, files containing DRM data cannot be played.

If sound is not input when the above operation is performed, do the following.

Windows
Display the [Search programs and files] box from the [Start Menu], enter [mmsys.cpl], and then push Enter key. The sound settings window opens. Select "Pioneer DDJ-SZ2" in [playback] tab.
*This cannot be used simultaneously with the ASIO driver.

Mac OS
Display the [Output] tab from [System Preferences] > [Sound], select "Sound output device," and then select "Pioneer DDJ-SZ2" from the sound devices. This unit's input channel can be changed by selecting "Pioneer DDJ-SZ2" in [Audio MIDI Setup] of [Applications] > [Utilities] and then using the [Configure speakers...] dialog box.

Yes, it is.
In order to operate MIDI-compatible DJ software with this unit, the various functions of the DJ software must be assigned to this unit's control interface. For details on assigning the functions, see your DJ software's operating instructions.

You can select from ±8%, ±16%, and ±50% in the INT mode of Serato DJ.

By lowering the buffer size setting, the latency (the period from when DDJ-SZ2 is operated until the sound is output) can be shortened. If there are interruptions in the sound, increase the buffer size, but note that this makes the latency longer. Set the buffer size to the minimum value at which no interruptions in the sound occur.

For Windows
If you are using Serato DJ, select [SETUP] > [AUDIO], and after clicking [LAUNCH DRIVER PANEL] in USB BUFFERSIZE, use the [ASIO] tab of DDJ-SZ2 Settings Utility to adjust the buffer size. If you are using DJ software other than Serato DJ, use the [ASIO] tab of DDJ-SZ2 Settings Utility to adjust the buffer size.

For Mac OS
If you are using Serato DJ, select [SETUP] > [AUDIO], and use USB BUFFERSIZE to adjust the buffer size. If you are using DJ software other than Serato DJ, use the DJ software to adjust the buffer size.

Serato Scratch Live is not supported. Use Serato DJ because it also supports DVS.

The Serato Scratch Live and Serato DJ databases are compatible, so if you have used Serato Scratch Live before, you can use the CRATE and CUE/LOOP points.

When using this unit in combination with MIDI-compatible DJ software other than Serato DJ, operation is possible by performing the settings in 1 and 2 below.

1. This unit is set to output optimum MIDI signals for operating Serato DJ, so the settings must be changed to operate other MIDI-compatible DJ software.
In this unit's utility settings, change the settings to use DJ software other than Serato DJ in this unit's utility settings.
For details, see the "Utility settings" section of this unit's operating instructions.

2. In order to operate MIDI-compatible DJ software with this unit, the various functions of the DJ software must be assigned to this unit's control interface.
For details on assigning the functions, see your DJ software's operating instructions.

The DDJ-SZ does not guarantee recovery operation from computer standby or sleep mode.

Please refer to the MIDI code table.
A MIDI code table can be obtained from the Pioneer DJ support page.

The sound continues to come out while the [NOISE] button of the oscillator function is held down.