{"id":7116,"date":"2026-05-04T03:30:39","date_gmt":"2026-05-04T01:30:39","guid":{"rendered":"https:\/\/commercialaudio.proel.com\/prodotti\/uncategorized\/pa-aup4125s-125w-four-channels-power-amplifier\/"},"modified":"2026-05-04T04:00:33","modified_gmt":"2026-05-04T02:00:33","slug":"pa-aup4125s-125w-four-channels-power-amplifier","status":"publish","type":"product","link":"https:\/\/commercialaudio.proel.com\/en\/prodotto\/pa-aup4125s-125w-four-channels-power-amplifier\/","title":{"rendered":"125W FOUR CHANNELS POWER AMPLIFIER"},"content":{"rendered":"
\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Model\u00a0<\/td>\nAUP4125S<\/td>\n<\/tr>\n
Output power RMS<\/td>\n4 x 125W<\/td>\n<\/tr>\n
Inputs<\/td>\n4 X balanced line
4 X Priority unbalanced line<\/td>\n<\/tr>\n
Input Sensitivity<\/td>\nLine: 1V\/47k\u03a9
variable gain 600\u03a9<\/td>\n<\/tr>\n
Controls<\/td>\n4 Master volume controls
4 treble tone controls
4 bass tone controls<\/td>\n<\/tr>\n
Loudspeakers outputs<\/td>\n100\/70V\/4\u03a9<\/td>\n<\/tr>\n
Frequency response<\/td>\n20Hz -20khz (-3dB)<\/td>\n<\/tr>\n
Distortion (THD)<\/td>\n< 0.5% (@ Pnom 1KHz)<\/td>\n<\/tr>\n
S\/N Ratio<\/td>\n\u226590dB<\/td>\n<\/tr>\n
Power Supply<\/td>\n230\/117Vac 50\/60Hz<\/td>\n<\/tr>\n
Operating temperature<\/td>\n0 -40\u00b0C<\/td>\n<\/tr>\n
Input\/Output Connectors<\/td>\nscrew terminals\/terminal block<\/td>\n<\/tr>\n
Power Consumption<\/td>\n1000VA<\/td>\n<\/tr>\n
Dimensions (LxHxP)\u00a0 (mm)<\/td>\n434×88.5×425 \u2013 2 rack units 19\u201d<\/td>\n<\/tr>\n
Weight (Kg)<\/td>\n9.75Kg (21.5lb)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

This series of audio power amplifiers was designed to fulfil an evolving market in the most flexible and professional manner. The new range responds to precise operating criteria, and was designed and tested to guarantee total reliability of use, also with continuous operation. Thanks to the use of power supply switching with SMPS (switch mode power supply) technology and obtaining 70\/100V electronically without transformers, it was possible to insert as many as 4 entirely independent audio power amplifiers in a single cabinet, succeeding in containing the weight and size.<\/p>\n

MAIN FUNCTIONS:<\/strong><\/p>\n

    \n
  • 4 constant electrical impedance outputs (4 ohm)<\/li>\n
  • 4 constant voltage outputs (70\/100V) obtained electronically without the use of output transformers.<\/li>\n
  • Balanced inputs for each channel<\/li>\n
  • Priority balanced input with independent level control of each channel.<\/li>\n
  • Independent Master control for each channel.<\/li>\n
  • Independent Low and High pitch control on the 4 channels.<\/li>\n
  • PA-HF filter individually inserted at the rear of each channel<\/li>\n
  • LED Protection Indicator<\/li>\n
  • LED signal indicator<\/li>\n
  • Operation mode LED indicator (4 ohm\/70\/100V)<\/li>\n
  • SMPS (switch mode power supply) switching technology<\/li>\n
  • 2 U-shaped fins to fasten to a 19″ rack<\/li>\n<\/ul>\n","protected":false},"featured_media":18183,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[71,74,72],"product_tag":[69],"class_list":{"0":"post-7116","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-amplifiers-en","7":"product_cat-commercial-audio-en","8":"product_cat-power-amplifiers-en","9":"product_tag-legacy-en","11":"first","12":"instock","13":"product-type-simple"},"acf":[],"yoast_head":"\n125W FOUR CHANNELS POWER AMPLIFIER - Proel Commercial Audio<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/commercialaudio.proel.com\/en\/prodotto\/pa-aup4125s-125w-four-channels-power-amplifier\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"125W FOUR CHANNELS POWER AMPLIFIER - Proel Commercial Audio\" \/>\n<meta property=\"og:description\" content=\"This series of audio power amplifiers was designed to fulfil an evolving market in the most flexible and professional manner. The new range responds to precise operating criteria, and was designed and tested to guarantee total reliability of use, also with continuous operation. Thanks to the use of power supply switching with SMPS (switch mode power supply) technology and obtaining 70\/100V electronically without transformers, it was possible to insert as many as 4 entirely independent audio power amplifiers in a single cabinet, succeeding in containing the weight and size.MAIN FUNCTIONS:4 constant electrical impedance outputs (4 ohm)4 constant voltage outputs (70\/100V) obtained electronically without the use of output transformers.Balanced inputs for each channelPriority balanced input with independent level control of each channel.Independent Master control for each channel.Independent Low and High pitch control on the 4 channels.PA-HF filter individually inserted at the rear of each channelLED Protection IndicatorLED signal indicatorOperation mode LED indicator (4 ohm\/70\/100V)SMPS (switch mode power supply) switching technology2 U-shaped fins to fasten to a 19" rack\" \/>\n<meta property=\"og:url\" content=\"https:\/\/commercialaudio.proel.com\/en\/prodotto\/pa-aup4125s-125w-four-channels-power-amplifier\/\" \/>\n<meta property=\"og:site_name\" content=\"Proel Commercial Audio\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-04T02:00:33+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/commercialaudio.proel.com\/wp-content\/uploads\/2026\/02\/tmp_safe_6837f309e0e22cbc17db283a757cd340.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"1200\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/commercialaudio.proel.com\\\/en\\\/prodotto\\\/pa-aup4125s-125w-four-channels-power-amplifier\\\/\",\"url\":\"https:\\\/\\\/commercialaudio.proel.com\\\/en\\\/prodotto\\\/pa-aup4125s-125w-four-channels-power-amplifier\\\/\",\"name\":\"125W FOUR CHANNELS POWER AMPLIFIER - 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