End of Life Products – M28Q

给予巡演和工程用的4 通道放大器

Powersoft 4ch
ArmoniaPlus
GreenPower
MyPowersoft

总览图

700 W at 4Ω from each of four channels with bridgeable pairs: a single M28Q is good for powering a complete little bi-amped stereo system, a 3-way mono stack of decent size, a variety of floor monitors.

All at a quality level as can be expected from Powersoft. Optimized for 4Ω loads, the M28Q is a fantastic value, practically as well as commercially.

In use worldwide by leading touring and event sound companies, Powersoft amplifiers are preferred among the top ranking system designers, sound engineers, and contractors for providing reliable premier-grade power and headroom in the smallest possible package size.

Maximum efficiency warrants minimum current draw, heat dissipation, and power consumption, resulting in “green” products, saving the user a substantial amount of money over time.

电源

  • 先进开关模式电源技术,带来高性能和小巧体积
  • 固定频率开关模式输出
  • 专利输出滤波器,带波纹消除网络rk

保护 全面的保护电路设计:

  • 交流保护:当交流电源电压超出操作范围时,关闭电源
  • 削波限幅器:防止严重削波的波形到达扬声器,同时维持全峰值电源输出功率
  • 直流保护:防止输出端出现次声信号
  • 甚高频保护:防止听不见的强烈非音乐高频信号到达扬声器
  • 短路保护:自动保护重置功能防止功放发生短路,或输出电路发生其它应激故障
  • 长期限幅器:防止会减少最大输出的稳定的长期RMS(非音频)信号到达扬声器
  • 热保护:输出级操作温度最高为75 °C (167 °F)
  • 温控连续变速风扇,从前到后的空气流动w

常规

  • 体积小巧 – 所有的型号只需1U的机架安装空间,节省了机架成本和空间
  • 重量轻 – 机架安装和装运更轻松:所有的型号都只有7.4 千克(16磅)
  • Neutrik XLR平衡输入,带环通XLR和Speakon输出接口
  • 嵌入步进式衰减器
  • 模块化结构y
General
Output power per channel
Output power per channel700 W @ 4 Ω360 W @ 8 Ω
Bridge mode1400 W @ 8 Ω
Max output voltage / current
Single channel mode85 Vpeak / 60 Apeak
Bridge mode170 Vpeak
AC main power
Power supplyUniversal, regulated switch mode with PFC (Power Factor Correction)
Nominal power requirement100-240 V ±10%, 50-60 Hz
Operating voltage90 V – 264 V
Power consumption / current draw
Idle115 V: 64 W – 0.6 A230 V: 62 W – 0.51 A
1/8 of max output power @ 4 Ω115 V: 580 W – 7.48 A230 V: 580 W – 3.74 A
1/4 of max output power @ 4 Ω115 V: 1066 W – 13.04 A230 V: 1066 W – 6.52 A
THERMAL
Operating temperature range0° – 45° C – 32° – 113° F
Thermal dissipation*
Idle115 V: 212 BTU/h – 53.4 kcal/h230 V: 212 BTU/h – 53.4 kcal/h
1/8 of max output power @ 4 Ω115 V: 785 BTU/h – 197.8 kcal/h230 V: 785 BTU/h – 197.8 kcal/h
1/4 of max output power @ 4 Ω115 V: 1249 BTU/h – 314.7 kcal/h230 V: 1249 BTU/h – 314.7 kcal/h