Apple Logic Pro 9 - Manual (Page 36)

Note: USB audio interfaces should always be directly connected to your computer, not
via a hub or to the computer’s display, keyboard, or another peripheral.
USB (Universal Serial Bus)
PCI Express
PCIe (Peripheral Component Interconnect Express) interfaces, unlike FireWire and USB
interfaces, require that you install a dedicated card in your computer. PCIe provides
extremely high bandwidth and fast data transfer rates, allowing you to record and play
back large numbers of files at the highest possible sample rates and bit depths.
ExpressCard/34
The ExpressCard/34 slot supports both PCIe and USB 2.0 connectivity. ExpressCards
available include audio interfaces, hard disk controller (eSATA) cards, networking, wireless
adapters, and more.
Audio Cabling
The following types of audio cables and connectors are usually used on professional and
consumer audio equipment:
• XLR
• 1/4-inch (6.35 mm) audio
• 1/8-inch (3.5 mm) miniplug
• RCA (Cinch)
• S/PDIF
• AES/EBU
• TOSLINK Optical and ADAT Lightpipe
XLR
XLR cables and connectors are used on professional-quality microphones, monitors, and
other musical equipment. They provide a high-quality, balanced signal at +4 dB level.
XLR connector (balanced)
36 Chapter 2 Setting Up Your System