dbx, Inc.","The ZonePRO 640m offers fixed I\/O, pre-configured architecture, configurable insert processing and optional duplication of audio channels to another ZonePRO device via a link bus. The 640m features a total of six inputs and four outputs. Inputs include four balanced mic\/line switchable terminal block inputs and two mono-summed pairs of unbalanced RCA inputs. Hardware-controlled microphone gain allows adjustment of microphone gain per channel. The 640m device has a pre-configured architecture with input processing, a central matrix and output processing. Two input insert positions and one output insert position allow channel-specific insert processing to be configured. AutoWarmth®, a psychoacoustic function that maintains full frequency bandwidth even when the signal level has dropped, is permanently available on each output zone.
Aphex Systems, Ltd.","The Aphex Model 188 houses eight high-quality mic preamps in a single 1U rackmountable chassis. Like the company's popular 1788A, all settings of the Model 188 may be remote controlled via Ethernet or MIDI, using Aphex' 1788A-RC hardware remote or the 1788SW control software (PC and Mac), or via Pro Tools®.The Model 188 has one analog output as well as two ADAT Optical outputs, each carrying eight channels of audio. The two outputs may be used for redundant operation, or to combine for higher sampling rates (SMUX).Unlike the 1788A, the Model 188 does not have the extensive onboard metering, nor does it include Aphex' exclusive MicLim™ technology which limits the signal at the mic input. However, the 188's 1U rackmount chassis makes it ideal for mobile systems with space limitations, and it consumes less power than the 1788A.