The original Apollo 8 QUAD firewire interface featured four onboard mic preamps, four SHARC processors for DSP, and optional Thunderbolt connectivity.
Universal Audio Apollo 8 QUAD Thunderbolt Audio Interface | Reverb
Universal Audio Apollo 8p
Universal Audio Apollo 8 QUAD - Thunderbolt 2 - User review
Universal Audio Apollo Quad audio interface with DSP process
Universal Audio, Apollo Quad Silver, TB
Buy any Apollo rackmount interface and turbo-charge it with a FREE
Universal Audio Apollo 8 QUAD Firewire Audio Interface
The Saramonic SR-AX101 is a 2-channel XLR audio adapter ideal for any DSLR camera or compact camcorder with a built-in microphone jack. This audio adapter enables you to acquire professional audio from XLR outputs into any camcorder that has a 3.5mm (1/8) audio input. The SR-AX101 allows you to connect to a wide variety of professional audio devices, including balanced XLR microphones, wireless microphones, external audio mixers, preamplifiers and more.
Universal Audio Apollo Quad Firewire with Real-Time UAD Processing
Universal Audio Apollo
Universal Audio Apollo Quad audio interface with DSP process