--- product_id: 442984652 title: "JBL Concert A704 4-Channel Car Amplifier Class AB - Car Power Amplifier with 4 x 70 Watt RMS - 1000 Watt Tip for 4 Car Speakers, or 2 Plus 1 Subwoofer or 2 Speakers" brand: "jbl" price: "S$308" currency: SGD in_stock: true category: "Jbl" url: https://www.desertcart.sg/products/442984652-jbl-concert-a704-4-channel-car-amplifier-class-ab-car store_origin: SG region: Singapore --- # 1000W peak output punch 4 x 70W RMS clean power Adjustable 40-400Hz crossover JBL Concert A704 4-Channel Car Amplifier Class AB - Car Power Amplifier with 4 x 70 Watt RMS - 1000 Watt Tip for 4 Car Speakers, or 2 Plus 1 Subwoofer or 2 Speakers **Brand:** jbl **Price:** S$308 **Availability:** ✅ In Stock ## Summary > 🎶 Turn every ride into a front-row concert experience! ## Quick Answers - **What is this?** JBL Concert A704 4-Channel Car Amplifier Class AB - Car Power Amplifier with 4 x 70 Watt RMS - 1000 Watt Tip for 4 Car Speakers, or 2 Plus 1 Subwoofer or 2 Speakers by jbl - **How much does it cost?** S$308 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/442984652-jbl-concert-a704-4-channel-car-amplifier-class-ab-car) ## Best For - jbl enthusiasts ## Why This Product - Trusted jbl brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Rigorously tested for extreme heat, cold, shocks & UV — reliability you can trust. - • **Sleek & Compact:** Modern design fits seamlessly into your car setup without sacrificing style. - • **Power Your Drive:** Unleash 280W RMS across 4 channels for immersive car concert vibes. - • **Effortless Activation:** Auto power-on feature means your amp wakes up the moment your music does. - • **Precision Sound Control:** Tailor your audio with adjustable high/low pass crossover from 40 to 400 Hz. ## Overview The JBL Concert A704 is a 4-channel Class AB car amplifier delivering 70 watts RMS per channel at 4 ohms, with a peak output of 1000 watts. Featuring adjustable high/low pass crossovers (40-400Hz), automatic power-on, and robust build quality tested for extreme conditions, it offers professional-grade sound enhancement and reliable performance for upgrading any car audio system. ## Description Ultimate car class AB amplifier from JBL. Class AB concert power amplifiers are available in 2-channel and 4-channel models. The amplifiers offer superior and sophisticated features at an attractive price. Both models feature a compact and elegant format and are equipped with an adjustable high/low pass crossover and an automatic power on function. And more importantly, they deliver reliable performance. The A652 2-channel amplifier delivers 65 watts of RMS of detailed music performance. If it is only to amplify the bass, the 2 channels can be bridged to 170 watts RMS. The A704 4-channel amplifier sends 70 watts RMS to your front and rear speakers, bridged it can supply a pair of subwoofers each with up to 180 watts RMS. Features: High performance class AB amplifier Adjustable high / low pass crossover Automatically turns on Efficient cooling design. Concert sound and elegant look. Reliable performance. Technical data: Concert A704 4 Channel Grade AB HiFi for Cars RMS rated output 70W x 4 @ 4 ohms 90W x 4 @ 2 ohms 180W x 2 @ 4 ohms bridged 75 dB. Frequency range (-3dB): 10Hz - 45kHz Gross weight: 2.86 kg Package contents: 1 x 4-channel car power amplifier JBL Concert A704. 4 x 3/4" self-tapping screws 2 x replacement fuses. 1 x quick start guide. 2 x 2-channel high level input wiring harness. ## Features - Concert sound for your car – the JBL Concert A704 power amplifier offers real powerful 280 watt RMS and 1000 watt peak JBL sound experience into your car hifi set and is a great upgrade for your car sound system - The high-performance audio amplifier of class AB combines the advantages of class A and B and is equipped with high-quality audio capacitors and power MOSFET's for very high sound quality and is therefore not only powerful, but also very reliable - Concert series amplifiers have adjustable high/low pass crossover frequency that allows you to adjust the frequency from 40 Hz to 400 Hz depending on your individual music taste - Auto power on: the high level signal input will automatically turn on the amplifier as soon as DC voltage is detected (>2.5V) and the line level signal input turns on the amplifier as soon as a +12V signal is detected. - RELIABLE PERFORMANCE: Harman Kardon Amplifiers must go through a rigorous testing process that would destroy an unstable car power amplifier. JBL exposures them deepest cold, high heat and shocks, irradiates them with UV light and lets them run at full power for days. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09Z71MCD1 | | Best Sellers Rank | 51,405 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 57 in Audio Amplifier | | Brand | JBL | | Customer Reviews | 4.3 4.3 out of 5 stars (299) | | Included Components | 4-channel interval | | Item Dimensions | 33.5 x 20.8 x 6.1 centimetres | | Item Type Name | car amplifier | | Item Weight | 2.9 Kilograms | | Manufacturer | JBL | | Manufacturer Part Number | A704 | | Maximum Output Power | 180W x 2 @2Ω | | Maximum Supply Voltage | 12 Volts | | Minimum Supply Voltage | 12 Volts | | Model Number | A704 | | Mounting Type | Freestanding | | Number of Channels | 4 | | Number of Items | 1 | | Output Power | 1000 Watts | | Package Type Name | Box | | Product Warranty | 2 year manufacturer | | Specification Met | CSA | | Voltage | 12 Volts | ## Product Details - **Item dimensions L x W x H:** 33.5 x 20.8 x 6.1 centimetres - **Manufacturer:** JBL - **Maximum supply voltage:** 12 Volts - **Minimum supply voltage:** 12 Volts - **Voltage:** 12 Volts ## Images ![JBL Concert A704 4-Channel Car Amplifier Class AB - Car Power Amplifier with 4 x 70 Watt RMS - 1000 Watt Tip for 4 Car Speakers, or 2 Plus 1 Subwoofer or 2 Speakers - Image 1](https://m.media-amazon.com/images/I/31j3FXRqB6L.jpg) ![JBL Concert A704 4-Channel Car Amplifier Class AB - Car Power Amplifier with 4 x 70 Watt RMS - 1000 Watt Tip for 4 Car Speakers, or 2 Plus 1 Subwoofer or 2 Speakers - Image 2](https://m.media-amazon.com/images/I/31rczmqoxFL.jpg) ![JBL Concert A704 4-Channel Car Amplifier Class AB - Car Power Amplifier with 4 x 70 Watt RMS - 1000 Watt Tip for 4 Car Speakers, or 2 Plus 1 Subwoofer or 2 Speakers - Image 3](https://m.media-amazon.com/images/I/316sB1dePBL.jpg) ![JBL Concert A704 4-Channel Car Amplifier Class AB - Car Power Amplifier with 4 x 70 Watt RMS - 1000 Watt Tip for 4 Car Speakers, or 2 Plus 1 Subwoofer or 2 Speakers - Image 4](https://m.media-amazon.com/images/I/31RL35oYGCL.jpg) ![JBL Concert A704 4-Channel Car Amplifier Class AB - Car Power Amplifier with 4 x 70 Watt RMS - 1000 Watt Tip for 4 Car Speakers, or 2 Plus 1 Subwoofer or 2 Speakers - Image 5](https://m.media-amazon.com/images/I/51MMbjoB0BL.jpg) ## Frequently Bought Together - JBL Concert A704 4-Channel Car Amplifier Class AB - Car Power Amplifier with 4 x 70 Watt RMS - 1000 Watt Tip for 4 Car Speakers, or 2 Plus 1 Subwoofer or 2 Speakers - VIBE Audio Slick 1500 W System Car Wiring Kit --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/442984652-jbl-concert-a704-4-channel-car-amplifier-class-ab-car](https://www.desertcart.sg/products/442984652-jbl-concert-a704-4-channel-car-amplifier-class-ab-car) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-10-03*