{"product_id":"soundqubed-bg4-700-700-watt-bagger-series-amp-ultra-compact","title":"SoundQubed BG4-700 700 Watt Bagger Series Amp (Ultra Compact)","description":"\u003ch2\u003e\n\u003cstrong\u003eSoundQubed BG4-700\u003c\/strong\u003e — 4-Channel Bagger Amplifier | BG-Series | 100W x 4 @ 4Ω\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSoundQubed BG4-700\u003c\/strong\u003e is the entry model of the 2024 BG-Series — SoundQubed’s purpose-built line of ultra-compact amplifiers designed specifically for motorcycles, baggers, side-by-sides, boats, golf carts, and any application where space is the primary constraint. Measuring just \u003cstrong\u003e8.3\" x 3.8\" x 1.7\"\u003c\/strong\u003e, the BG4-700 delivers \u003cstrong\u003e100W x 4 at 4Ω\u003c\/strong\u003e, \u003cstrong\u003e175W x 4 at 2Ω\u003c\/strong\u003e, and \u003cstrong\u003e300W x 2 bridged at 4Ω\u003c\/strong\u003e in one of the smallest 4-channel amplifier chassis available. After 12 months of development and testing, SoundQubed engineered the BG-Series to change the direction of the bagger audio industry — and the BG4-700 is proof that serious sound doesn’t require serious space.\u003c\/p\u003e\n\n\u003cp\u003eThe BG4-700 features a \u003cstrong\u003eselectable LPF\/HPF\/FULL crossover\u003c\/strong\u003e with a filter range of \u003cstrong\u003e35 Hz–250 Hz\u003c\/strong\u003e and a \u003cstrong\u003e10x crossover frequency multiplier\u003c\/strong\u003e for precise frequency control without a separate DSP. It accepts both \u003cstrong\u003elow-level RCA input (400mV–6V)\u003c\/strong\u003e and \u003cstrong\u003eautomatic high-level input (RCA Auto)\u003c\/strong\u003e — making it plug-and-play compatible with factory head units and OEM audio systems. With a signal-to-noise ratio of \u003cstrong\u003e95 dB\u003c\/strong\u003e, 81% efficiency at 4 ohm, a damping factor of 92, and \u003cstrong\u003e52.6 dB channel separation\u003c\/strong\u003e, the BG4-700 delivers clean, accurate sound reproduction in a chassis built for the real world. The \u003cstrong\u003ePCB features anti-corrosion protection coating\u003c\/strong\u003e for durability in outdoor and marine environments.\u003c\/p\u003e\n\n\u003cp\u003ePowered by a \u003cstrong\u003e4GA input\u003c\/strong\u003e with a \u003cstrong\u003e3 x 40A fuse configuration\u003c\/strong\u003e, the BG4-700 is protected by a full suite of thermal, overload, DC output, short circuit, and voltage input protection circuits. The sleek black case with machined logos and lasered end caps maintains SoundQubed’s premium aesthetic — even in the tightest install locations.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the SoundQubed BG4-700?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100W x 4 @ 4Ω \/ 175W x 4 @ 2Ω \/ 300W x 2 Bridged @ 4Ω\u003c\/strong\u003e — Serious 4-channel output in an ultra-compact chassis built for baggers and space-constrained installs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Compact 8.3\" x 3.8\" x 1.7\" Chassis\u003c\/strong\u003e — Specifically designed for motorcycle fairings, saddlebags, and tight custom install locations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomatic High-Level Input (RCA Auto)\u003c\/strong\u003e — Plug-and-play compatible with factory head units and OEM audio systems — no aftermarket head unit required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelectable LPF\/HPF\/FULL + 10x X-Over Multiplier\u003c\/strong\u003e — Precise crossover control from 35 Hz to 250 Hz (x10 = up to 2,500 Hz) without a separate DSP.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e95 dB Signal-to-Noise Ratio\u003c\/strong\u003e — Clean, accurate signal reproduction even in electrically noisy motorcycle environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnti-Corrosion PCB Coating\u003c\/strong\u003e — Built for outdoor, marine, and motorcycle environments where moisture and vibration are a constant reality.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3 x 40A Fuse Configuration\u003c\/strong\u003e — Properly fused for the current demands of a 700W 4-channel amplifier in a compact package.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudio Precision Quality Control Verification\u003c\/strong\u003e — Every BG4-700 is verified with Audio Precision instruments before leaving the factory.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Recommendations\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eMotorcycle \/ Bagger Install:\u003c\/strong\u003e The BG4-700 is purpose-built for Harley-Davidson baggers and touring bikes. Its 8.3\" x 3.8\" x 1.7\" footprint fits in most fairing pockets, saddlebag lids, and under-seat locations. Use the automatic high-level input to connect directly to your factory radio without an aftermarket head unit. Run channels 1\/2 for front fairing speakers (HPF filtered at 80–100 Hz) and channels 3\/4 for rear speakers or bridge for a compact subwoofer.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMarine \/ Side-by-Side \/ Golf Cart:\u003c\/strong\u003e The anti-corrosion PCB coating makes the BG4-700 an excellent choice for marine and outdoor installs. The compact chassis fits in virtually any storage compartment or under-dash location. Use the automatic high-level input for OEM head unit compatibility and the LPF\/HPF crossover to tune your system without additional signal processors.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eElectrical Requirements:\u003c\/strong\u003e The BG4-700 uses a \u003cstrong\u003e4GA power input\u003c\/strong\u003e with a \u003cstrong\u003e3 x 40A fuse\u003c\/strong\u003e. It is compatible with 12V electrical systems standard on motorcycles, boats, and powersports vehicles.\u003c\/p\u003e\n\n\u003ch2\u003eFull Specifications\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:left;\"\u003eBG4-700\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eRMS Power @ 4 Ohm — 4-Channel\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e100W x 4\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eRMS Power @ 2 Ohm — 4-Channel\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e175W x 4\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eRMS Power @ 4 Ohm — Bridged (2-Channel)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e300W x 2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e10 Hz – 20 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eSignal to Noise Ratio\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e95 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eEfficiency @ 4 Ohm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e81%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eDamping Factor\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e92\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eInput Impedance\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e10K Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eChannel Separation\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e52.6 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eTHD\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e0.50%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eLow Level Input Range\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e400mV – 6V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eHigh Level Input\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eYes (RCA Auto)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eSelectable X-Over\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eLPF \/ HPF \/ FULL\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eX-Over Filter Range\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e35 Hz – 250 Hz (X1\/X10)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eX-Over Frequency Multiplier\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eYes (X10)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eAmplifier Class\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eDigital\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eAmplifier Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eStereo Full-Range\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eMinimum Impedance (Stereo)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eMinimum Impedance (Bridged)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e4 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eLED Indicator\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003ePower \/ Protect \/ Clip\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003ePower Input Terminal Size\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e4GA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eFuse Size\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e3 x 40A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eThermal Protection\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eOver-Load Protection\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eDC Output Protection\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eShort Circuit Output Protection\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eVoltage Input Protection\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eAutomatic Hi-Level Input from RCA\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eAnti-Corrosion PCB Coating\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eHigh Efficiency Digital Circuit Design\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eQuality Control (Audio Precision)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eCompact Size for Baggers\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eOverall Length\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e8.3\" \/ 211 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eOverall Width\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e3.8\" \/ 96.4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eOverall Height\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e1.7\" \/ 43.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eHeatsink Length\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e7\" \/ 180 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will the BG4-700 work with my factory Harley-Davidson radio?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes — the BG4-700 features \u003cstrong\u003eautomatic high-level input (RCA Auto)\u003c\/strong\u003e that connects directly to your factory radio’s speaker outputs without an aftermarket head unit. It automatically detects the signal and converts it for amplifier use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Where does the BG4-700 fit on a Harley-Davidson bagger?\u003c\/strong\u003e\u003cbr\u003e\nA: At 8.3\" x 3.8\" x 1.7\", the BG4-700 fits in most fairing pockets, saddlebag lids, tour-pak lids, and under-seat locations on Harley-Davidson touring and bagger models. Always measure your available space before purchasing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What’s the minimum impedance for bridged mode?\u003c\/strong\u003e\u003cbr\u003e\nA: The BG4-700 is stable at \u003cstrong\u003e4Ω in bridged mode\u003c\/strong\u003e and \u003cstrong\u003e2Ω in stereo mode\u003c\/strong\u003e. Do not bridge into a load below 4Ω.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is the BG4-700 weatherproof?\u003c\/strong\u003e\u003cbr\u003e\nA: The BG4-700 features an \u003cstrong\u003eanti-corrosion PCB coating\u003c\/strong\u003e for durability in outdoor, marine, and motorcycle environments. It is not fully waterproof — protect it from direct water exposure and install in a location with reasonable weather protection.\u003c\/p\u003e","brand":"SoundQubed","offers":[{"title":"Default Title","offer_id":49849771229412,"sku":null,"price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/2522\/9028\/files\/5__95162.webp?v=1789257334","url":"https:\/\/www.12voltoutlet.com\/products\/soundqubed-bg4-700-700-watt-bagger-series-amp-ultra-compact","provider":"12 Volt Outlet","version":"1.0","type":"link"}