{"product_id":"ampeg-svt-4pro-bass-amplifier-head","title":"Ampeg SVT-4PRO Bass Amplifier Head","description":"\u003cp\u003e\u003cstrong\u003eThe Ampeg SVT-4PRO delivers massive professional bass power, deep routing flexibility, and legendary SVT tone shaping in a touring-grade hybrid rackmount amplifier built for serious stage and studio performance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e1200-watt bridged hybrid bass amplifier head with tube preamp and solid-state power section\u003c\/li\u003e\n\u003cli\u003e3 x 12AX7 tube preamp delivers classic Ampeg warmth, punch, and harmonic character\u003c\/li\u003e\n\u003cli\u003eExtensive tone shaping with 9-band graphic EQ and 5-position midrange selector\u003c\/li\u003e\n\u003cli\u003eProfessional stereo, mono, and bi-amp operation with internal crossover\u003c\/li\u003e\n\u003cli\u003eDual transformer-balanced DI outputs, dual effects loops, compressor, and limiter controls\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe SVT-4PRO stands as one of the most powerful and flexible amplifier heads ever produced by Ampeg. Designed for professional bass players who demand maximum tonal control, massive output capability, and advanced stage routing options, the SVT-4PRO combines classic SVT-inspired character with modern touring functionality.\u003c\/p\u003e\n\n\u003cp\u003eIts hybrid design pairs a three-tube 12AX7 preamp section with a powerful solid-state output stage, delivering the warmth, authority, and responsiveness that define Ampeg bass tone while maintaining exceptional clarity and reliability at high performance volumes.\u003c\/p\u003e\n\n\u003cp\u003eThe SVT-4PRO is built for bassists who require serious tone shaping power. A flexible 3-band EQ works alongside a 5-position midrange selector and footswitchable 9-band graphic EQ, allowing highly detailed control across a wide range of musical styles and performance environments. Ultra-Lo and Ultra-Hi switches further expand the amp’s tonal flexibility, while the onboard compressor and defeatable Optocoupler Limiter help maintain control and consistency under demanding stage conditions.\u003c\/p\u003e\n\n\u003cp\u003eIts professional connectivity and routing capabilities make the SVT-4PRO exceptionally adaptable for modern live and studio rigs. Stereo operation, mono bridged output, internal 24 dB\/octave crossover functionality, dual transformer-balanced DI outputs, dual effects loops, and multiple speaker output options allow the amp to integrate into virtually any professional bass setup.\u003c\/p\u003e\n\n\u003cp\u003eWhether powering large touring cabinets or complex bi-amped stage rigs, the SVT-4PRO remains one of the most respected high-power Ampeg amplifier heads ever produced.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e1200 Watts RMS bridged at 4 Ohms\u003c\/li\u003e\n\u003cli\u003eHybrid tube preamp and solid-state power amp design\u003c\/li\u003e\n\u003cli\u003e3 x 12AX7 preamp tubes\u003c\/li\u003e\n\u003cli\u003e3-band EQ with 5-position midrange selector\u003c\/li\u003e\n\u003cli\u003eSwitchable 9-band graphic EQ\u003c\/li\u003e\n\u003cli\u003eUltra-Lo and Ultra-Hi boost switches\u003c\/li\u003e\n\u003cli\u003eVariable compressor and defeatable Optocoupler Limiter\u003c\/li\u003e\n\u003cli\u003eStereo, mono, and bi-amp operation modes\u003c\/li\u003e\n\u003cli\u003eInternal 24 dB\/octave crossover\u003c\/li\u003e\n\u003cli\u003eDual transformer-balanced DI outputs\u003c\/li\u003e\n\u003cli\u003eDual effects loops\u003c\/li\u003e\n\u003cli\u003e2U rackmount chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003ePower Output: 1200 Watts RMS Bridged @ 4 Ohms\u003c\/li\u003e\n\u003cli\u003ePower Output: 900 Watts RMS Bridged @ 8 Ohms\u003c\/li\u003e\n\u003cli\u003ePower Output: 600 Watts x 2 Stereo @ 2 Ohms\u003c\/li\u003e\n\u003cli\u003ePreamp Tubes: 3 x 12AX7\u003c\/li\u003e\n\u003cli\u003eGraphic EQ: 9-Band\u003c\/li\u003e\n\u003cli\u003eRackmount Format: 2U\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eModel: SVT-4PRO\u003c\/li\u003e\n\u003cli\u003eSeries: Pro Series\u003c\/li\u003e\n\u003cli\u003eAmplifier Type: Hybrid Bass Amplifier Head\u003c\/li\u003e\n\u003cli\u003ePower Output: 1200 Watts RMS Bridged @ 4 Ohms\u003c\/li\u003e\n\u003cli\u003ePower Output: 900 Watts RMS Bridged @ 8 Ohms\u003c\/li\u003e\n\u003cli\u003ePower Output: 600 Watts x 2 Stereo @ 2 Ohms\u003c\/li\u003e\n\u003cli\u003eTube Preamp Design\u003c\/li\u003e\n\u003cli\u003eSolid-State Power Amplifier\u003c\/li\u003e\n\u003cli\u003ePreamp Tubes: 3 x 12AX7\u003c\/li\u003e\n\u003cli\u003e3-band EQ\u003c\/li\u003e\n\u003cli\u003e5-position midrange selector\u003c\/li\u003e\n\u003cli\u003e9-band graphic EQ\u003c\/li\u003e\n\u003cli\u003eFootswitchable graphic EQ\u003c\/li\u003e\n\u003cli\u003eUltra-Lo boost\u003c\/li\u003e\n\u003cli\u003eUltra-Hi boost\u003c\/li\u003e\n\u003cli\u003eVariable 0–7:1 compressor\u003c\/li\u003e\n\u003cli\u003eDefeatable Optocoupler Limiter\u003c\/li\u003e\n\u003cli\u003eStereo, mono, and bi-amp operation\u003c\/li\u003e\n\u003cli\u003eInternal 24 dB\/octave crossover\u003c\/li\u003e\n\u003cli\u003eDual transformer-balanced DI outputs\u003c\/li\u003e\n\u003cli\u003ePre\/Post DI switching\u003c\/li\u003e\n\u003cli\u003eDual effects loops\u003c\/li\u003e\n\u003cli\u003e1\/4\" and Neutrik speakON speaker outputs\u003c\/li\u003e\n\u003cli\u003e2U rackmount chassis\u003c\/li\u003e\n\u003cli\u003eDesigned for professional touring and studio bass applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From Rain City Guitars\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eAuthorized Ampeg dealer in Canada\u003c\/li\u003e\n\u003cli\u003eCurated selection of professional bass gear\u003c\/li\u003e\n\u003cli\u003eEvery product is professionally inspected before shipping\u003c\/li\u003e\n\u003cli\u003eBuilt by musicians, for musicians\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ampeg","offers":[{"title":"Default Title","offer_id":46725795610761,"sku":"SVT4PRO","price":2549.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/7299\/3417\/files\/SVT4PRO-F-JPG_cf211ef7-edc0-43e3-a673-b5ebe9166c57.jpg?v=1778717168","url":"https:\/\/raincityguitars.com\/products\/ampeg-svt-4pro-bass-amplifier-head","provider":"Rain City Guitars","version":"1.0","type":"link"}