Electro-Voice","The Electro-Voice® PA4150 is from the PA series of professional commercial audio amplifiers. The direct-path airflow design significantly reduces heat buildup, and allows four full amplifier channels in a slim, two-rack space chassis. The superior audio performance of the PA4150 fulfills the requirements of many demanding, long-term applications such as sound reinforcement, paging, or life safety installations.
Stewart Audio,Stewart Audio的半机架PA系列功率放大器专为高质量的商业、工业和专业音频设备设计。180W x 1@8欧姆桥接,Stewart Audio的半机架PA系列功率放大器专为高质量商业、工业和专业音频设备设计。PA系列是专门为满足音速精度、高效率、低功耗和在非常紧凑的半机架封装中延长工作周期的严格要求而设计的。
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.