{"product_id":"hertz-sp-4-500-d-class-4-channel-amplifier-125-w-rms-x-4-at-2ω","title":"Hertz SP-4.500 D-Class 4 Channel Amplifier 125 W RMS x 4 at 2Ω","description":"\u003cp\u003e\u003cspan\u003eSP 4.500 features Hertz ADC (Advanced D-Class) output stage, reaching up to 85% efficiency and delivering an impressive power rating of 90 x 4 (4Ω) W RMS or 300 W x 2 (4Ω) W RMS when bridged, with an ultra-compact size of 192.7 (7.58) x 130 (5.1) mm (in.) x 49 (1.9). Being ultra-compact with impressive power, SP 4.500 is the ideal choice for Motorcycle applications and for under-seat in sports cars and behind-seat installations in trucks.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eGeneral Specs\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eChannels: 4 - 3 - 2\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eNominal power supply voltage: 11 ÷ 15 VDC\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePulse Operating voltage: 6 ÷ 16 VDC\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIdling current: 0.9 A\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIdling current when off: 0.03 mA\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eConsumption @ 14.4 VDC, MIN load impedance (Max Musical Power): 27 A\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRemote IN: 6 ÷ 15 VDC (9 mA)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDC-REM - Remote Turn on by SPK DC from OUTPUT BTL speakers: 3.5 ÷ 7 VDC\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDistortion - THD @ 1 kHz, 4Ω, 70% Rated Power: \u0026lt;0.02%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDamping factor @ 1 kHz, 4Ω, 2 VRMS: \u0026gt;150\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBandwidth @ -3 dB: 10 Hz ÷ 35 kHz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eS\/N ratio (A weighted @ 1 V Input): 100 dBA\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePre-In sensitivity: 0.6 ÷ 6 VRMS\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSpeaker-In sensitivity: 2.2 ÷ 22 VRMS\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMinimum load impedance:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e@ 4Ch: 2Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e@ 3Ch: 2Ω + 2Ω + 4Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e@ 2Ch: 4Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIP Rating: IP55\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOperating Temperature Range: 0°C (32°F) to 55°C (131°F)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMax size (mm\/inch): 192.7 x 130 x 49 \/ 7.58 x 4.18 x 1.9\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWeight (kg\/lbs): 2.15 \/ 4.74\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAdjustable Crossovers: yes\u003c\/span\u003e\u003c\/p\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":51320009654557,"sku":null,"price":429.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/8525\/5965\/files\/sp-4500-04__1__14445.jpg?v=1779459088","url":"https:\/\/shopaudioxtc.com\/products\/hertz-sp-4-500-d-class-4-channel-amplifier-125-w-rms-x-4-at-2%cf%89","provider":"Audio XTC","version":"1.0","type":"link"}