{"id":9970309366000,"title":"RetroSound® Technophonic 5-channel Amplifier","handle":"technophonic-5-channel-class-d-power-amplifier","description":"\u003cp\u003ePower your whole system with the RetroSound® Technophonic amplifier. The Technophonic is a 5-channel amplifier that pushes 65-watts RMS to all four speakers and delivers up to 330-watt RMS to your subwoofer. Switch the Technophonic to 2 or 4 channel modes for radios with only 2 or 4 inputs, and the Technophonic intelligently routes the selected inputs to all five balanced outputs. The Technophonic is 2-ohm or 4-ohm stable and bridgeable, giving you more flexibility to build your system. The low-level RCA inputs allow you to connect the Technophonic effortlessly to your RetroSound radio, or any aftermarket stereo with RCA outputs. Whether you're looking to build a balanced system or going for high power and performance, the Technonphonic amplifier has everything you need.\u003c\/p\u003e\n\u003cp\u003eCrank up the volume without distortion. The Technophonic features low current draw and Class D Digital circuitry, providing exceptional dynamic range and low distortion so you can listen to your favorite songs as loud as you want! High-pass and low-pass filters let you fine-tune your audio for the best listening experience, with remote gain control to adjust bass levels on the fly from the front seat.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5-channel amplifier\u003c\/li\u003e\n\u003cli\u003eFull-range Class D digital circuitry\u003c\/li\u003e\n\u003cli\u003e65-watts RMS x 4 channels full-range @ 4 ohms (95-watts RMS x 4 @ 2ohms)\u003c\/li\u003e\n\u003cli\u003e225-watts RMS x 1 channel subwoofer @ 4 ohms (330-watts RMS @ 2 ohms)\u003c\/li\u003e\n\u003cli\u003eSelectable input mode switch for 2, 4, and 5 channel operation\u003c\/li\u003e\n\u003cli\u003eBridgeable\u003c\/li\u003e\n\u003cli\u003e2-ohm and 4-ohm stable\u003c\/li\u003e\n\u003cli\u003eBuilt-in variable low pass and high pass full-range filters\u003c\/li\u003e\n\u003cli\u003eBass boost (0-12db) and remote gain control\u003c\/li\u003e\n\u003cli\u003eAdvanced protection circuitry\u003c\/li\u003e\n\u003cli\u003eEasily connects to your RetroSound radio via RCA inputs\u003c\/li\u003e\n\u003cli\u003eWorks with any aftermarket radio with low-level RCA outputs\u003c\/li\u003e\n\u003cli\u003eDimensions: 12.9 in x 5.3 in x 1.87 in (33 cm x 13.4 cm x 4.75 cm)\u003c\/li\u003e\n\u003cli\u003eFuse Rating: 60-amp\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOptional Wiring Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSimplify the installation of your RetroSound® Technophonic amplifier with this convenient wiring kit that includes everything you’ll need to get your 5-channel amplifier installed. The RetroSound 5 Channel Amplifier Wiring Kit comes with: one 60 amp mini-ANL fuse and quality fuse holder, 13 ft (4 m) of 8-gauge red power wire, 5 ft (1.5 m) of 8-gauge black ground wire, 13 ft (4 m) of 18-gauge blue turn-on wire, three sets of RCA cables, two 8-gauge ring terminals, two 18-gauge butt connectors, and a hex key.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarnings:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCalifornia Proposition 65 Warning: WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.\u003c\/p\u003e\n\u003c!--SPLIT--\u003e\n\u003c!--SPLIT--\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-Range Power Output @ 4 ohms\u003c\/td\u003e\n\u003ctd\u003e65 watts RMS x 4 channels @ 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubwoofer Power Output @ 4 ohms\u003c\/td\u003e\n\u003ctd\u003e225 watts RMS x 1 channel @ 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-Range Power Output @ 2 ohms\u003c\/td\u003e\n\u003ctd\u003e95 watts RMS x 4 channels @ 2 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubwoofer Power Output @ 2 ohms\u003c\/td\u003e\n\u003ctd\u003e330 watts RMS x 1 channel @ 2 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-Range Frequency Response\u003c\/td\u003e\n\u003ctd\u003e24Hz - 65KHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubwoofer Frequency Response\u003c\/td\u003e\n\u003ctd\u003e24Hz - 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Harmonic Distortion\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass Boost\u003c\/td\u003e\n\u003ctd\u003e0-12dB @ 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal to Noise Ratio (EIA rated)\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;95dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Sensitivity\u003c\/td\u003e\n\u003ctd\u003e200mV - 6.0 volts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Slope\u003c\/td\u003e\n\u003ctd\u003e24dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh Pass Filter (HPF) Frequency Range\u003c\/td\u003e\n\u003ctd\u003e40Hz - 400Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Pass Filter (LPF) Frequency Range\u003c\/td\u003e\n\u003ctd\u003e50Hz - 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuses* (fuse door on bottom of amplifier)\u003c\/td\u003e\n\u003ctd\u003e30 amp ATC Style (x2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (inches)\u003c\/td\u003e\n\u003ctd\u003e12.9” W x 5.3” D x 1.87” H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (cm)\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e33 cm x 13.4 cm x 4.75 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e*An additional 60 amp fuse (not included) must be used on the Battery (+) wire at the battery. The fuse must be placed as close as possible to the positive (+) battery terminal (within 6-8 inches away).\u003c\/p\u003e","published_at":"2026-04-04T14:15:33-07:00","created_at":"2026-04-04T14:15:34-07:00","vendor":"RetroSound","type":"Amplifiers \u0026 Subwoofers","tags":["amplifier","amplifiers","amps\u0026subs","stereo","universal products"],"price":27999,"price_min":27999,"price_max":33299,"available":true,"price_varies":true,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":49500322300144,"title":"5 Channel Wiring Kit","option1":"5 Channel Wiring Kit","option2":null,"option3":null,"sku":"TECHNOPHONIC-AK-5","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"RetroSound® Technophonic 5-channel Amplifier - 5 Channel Wiring Kit","public_title":"5 Channel Wiring Kit","options":["5 Channel Wiring Kit"],"price":33299,"weight":4082,"compare_at_price":null,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":49500322332912,"title":"No Wiring Kit","option1":"No Wiring Kit","option2":null,"option3":null,"sku":"TECHNOPHONIC","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"RetroSound® Technophonic 5-channel Amplifier - No Wiring Kit","public_title":"No Wiring Kit","options":["No Wiring Kit"],"price":27999,"weight":3039,"compare_at_price":null,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_2.jpg?v=1775337336","\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_3.jpg?v=1775337336","\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_4.jpg?v=1775337336","\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_5.jpg?v=1775337336","\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_1.jpg?v=1775337336","\/\/www.hitechclassics.com\/cdn\/shop\/files\/AK-5_1c6ffaa6-cf88-4869-94c7-f99849be71cc.jpg?v=1775337337"],"featured_image":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_2.jpg?v=1775337336","options":["Wiring Kit"],"media":[{"alt":null,"id":44159940362480,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2500,"width":2500,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_2.jpg?v=1775337336"},"aspect_ratio":1.0,"height":2500,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_2.jpg?v=1775337336","width":2500},{"alt":null,"id":44159940395248,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2500,"width":2500,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_3.jpg?v=1775337336"},"aspect_ratio":1.0,"height":2500,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_3.jpg?v=1775337336","width":2500},{"alt":null,"id":44159940428016,"position":3,"preview_image":{"aspect_ratio":1.0,"height":2500,"width":2500,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_4.jpg?v=1775337336"},"aspect_ratio":1.0,"height":2500,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_4.jpg?v=1775337336","width":2500},{"alt":null,"id":44159940460784,"position":4,"preview_image":{"aspect_ratio":1.0,"height":2500,"width":2500,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_5.jpg?v=1775337336"},"aspect_ratio":1.0,"height":2500,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_5.jpg?v=1775337336","width":2500},{"alt":null,"id":44159940493552,"position":5,"preview_image":{"aspect_ratio":1.0,"height":2500,"width":2500,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_1.jpg?v=1775337336"},"aspect_ratio":1.0,"height":2500,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/Technophonic_1.jpg?v=1775337336","width":2500},{"alt":null,"id":44159940526320,"position":6,"preview_image":{"aspect_ratio":1.217,"height":3415,"width":4157,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/AK-5_1c6ffaa6-cf88-4869-94c7-f99849be71cc.jpg?v=1775337337"},"aspect_ratio":1.217,"height":3415,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/AK-5_1c6ffaa6-cf88-4869-94c7-f99849be71cc.jpg?v=1775337337","width":4157}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003ePower your whole system with the RetroSound® Technophonic amplifier. The Technophonic is a 5-channel amplifier that pushes 65-watts RMS to all four speakers and delivers up to 330-watt RMS to your subwoofer. Switch the Technophonic to 2 or 4 channel modes for radios with only 2 or 4 inputs, and the Technophonic intelligently routes the selected inputs to all five balanced outputs. The Technophonic is 2-ohm or 4-ohm stable and bridgeable, giving you more flexibility to build your system. The low-level RCA inputs allow you to connect the Technophonic effortlessly to your RetroSound radio, or any aftermarket stereo with RCA outputs. Whether you're looking to build a balanced system or going for high power and performance, the Technonphonic amplifier has everything you need.\u003c\/p\u003e\n\u003cp\u003eCrank up the volume without distortion. The Technophonic features low current draw and Class D Digital circuitry, providing exceptional dynamic range and low distortion so you can listen to your favorite songs as loud as you want! High-pass and low-pass filters let you fine-tune your audio for the best listening experience, with remote gain control to adjust bass levels on the fly from the front seat.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5-channel amplifier\u003c\/li\u003e\n\u003cli\u003eFull-range Class D digital circuitry\u003c\/li\u003e\n\u003cli\u003e65-watts RMS x 4 channels full-range @ 4 ohms (95-watts RMS x 4 @ 2ohms)\u003c\/li\u003e\n\u003cli\u003e225-watts RMS x 1 channel subwoofer @ 4 ohms (330-watts RMS @ 2 ohms)\u003c\/li\u003e\n\u003cli\u003eSelectable input mode switch for 2, 4, and 5 channel operation\u003c\/li\u003e\n\u003cli\u003eBridgeable\u003c\/li\u003e\n\u003cli\u003e2-ohm and 4-ohm stable\u003c\/li\u003e\n\u003cli\u003eBuilt-in variable low pass and high pass full-range filters\u003c\/li\u003e\n\u003cli\u003eBass boost (0-12db) and remote gain control\u003c\/li\u003e\n\u003cli\u003eAdvanced protection circuitry\u003c\/li\u003e\n\u003cli\u003eEasily connects to your RetroSound radio via RCA inputs\u003c\/li\u003e\n\u003cli\u003eWorks with any aftermarket radio with low-level RCA outputs\u003c\/li\u003e\n\u003cli\u003eDimensions: 12.9 in x 5.3 in x 1.87 in (33 cm x 13.4 cm x 4.75 cm)\u003c\/li\u003e\n\u003cli\u003eFuse Rating: 60-amp\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOptional Wiring Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSimplify the installation of your RetroSound® Technophonic amplifier with this convenient wiring kit that includes everything you’ll need to get your 5-channel amplifier installed. The RetroSound 5 Channel Amplifier Wiring Kit comes with: one 60 amp mini-ANL fuse and quality fuse holder, 13 ft (4 m) of 8-gauge red power wire, 5 ft (1.5 m) of 8-gauge black ground wire, 13 ft (4 m) of 18-gauge blue turn-on wire, three sets of RCA cables, two 8-gauge ring terminals, two 18-gauge butt connectors, and a hex key.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarnings:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCalifornia Proposition 65 Warning: WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.\u003c\/p\u003e\n\u003c!--SPLIT--\u003e\n\u003c!--SPLIT--\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-Range Power Output @ 4 ohms\u003c\/td\u003e\n\u003ctd\u003e65 watts RMS x 4 channels @ 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubwoofer Power Output @ 4 ohms\u003c\/td\u003e\n\u003ctd\u003e225 watts RMS x 1 channel @ 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-Range Power Output @ 2 ohms\u003c\/td\u003e\n\u003ctd\u003e95 watts RMS x 4 channels @ 2 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubwoofer Power Output @ 2 ohms\u003c\/td\u003e\n\u003ctd\u003e330 watts RMS x 1 channel @ 2 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-Range Frequency Response\u003c\/td\u003e\n\u003ctd\u003e24Hz - 65KHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubwoofer Frequency Response\u003c\/td\u003e\n\u003ctd\u003e24Hz - 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Harmonic Distortion\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass Boost\u003c\/td\u003e\n\u003ctd\u003e0-12dB @ 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal to Noise Ratio (EIA rated)\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;95dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Sensitivity\u003c\/td\u003e\n\u003ctd\u003e200mV - 6.0 volts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Slope\u003c\/td\u003e\n\u003ctd\u003e24dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh Pass Filter (HPF) Frequency Range\u003c\/td\u003e\n\u003ctd\u003e40Hz - 400Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Pass Filter (LPF) Frequency Range\u003c\/td\u003e\n\u003ctd\u003e50Hz - 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuses* (fuse door on bottom of amplifier)\u003c\/td\u003e\n\u003ctd\u003e30 amp ATC Style (x2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (inches)\u003c\/td\u003e\n\u003ctd\u003e12.9” W x 5.3” D x 1.87” H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (cm)\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e33 cm x 13.4 cm x 4.75 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e*An additional 60 amp fuse (not included) must be used on the Battery (+) wire at the battery. The fuse must be placed as close as possible to the positive (+) battery terminal (within 6-8 inches away).\u003c\/p\u003e"}