SKU: 89008797732

ESX Q-FOURv3 - 4 Channel Amplifier

Sale price$94.50 Regular price$105.00
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

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Description

ESX Q-FOURv3 - 4 Channel AmplifierFeatures Class D Technology with high Efficiency Constant Power Technology Heavy die cast Heatsink High Level Inputs with Error Protection System (EPS) Auto Turn On Function Start Stop Ready Precious Acrylic Cover in Piano Finish Specifications 4 Channel Class D Compact Digital Amplifier 4 x 100 120 Watts RMS @ 4 2 2 x 200 Watts RMS @ 4 bridged HPF 20 4000 Hz (CH1 2) HPF 10 500 Hz (CH3 4) LPF 50 4000 Hz (CH3 4) Dupe Mode CH3 4 > CH1 2 Bass Boost 0 12

Features

  • Class D Technology with high Efficiency
  • Constant Power Technology
  • Heavy die-cast Heatsink
  • High Level Inputs with Error Protection System (EPS®)
  • Auto Turn-On Function
  • Start/Stop Ready
  • Precious Acrylic Cover in Piano Finish

Specifications

  • 4-Channel Class D Compact Digital Amplifier
  • 4 x 100/120 Watts RMS @ 4/2 Ω
  • 2 x 200 Watts RMS @ 4 Ω bridged
  • HPF 20-4000 Hz (CH1/2)
  • HPF 10-500 Hz (CH3/4)
  • LPF 50-4000 Hz (CH3/4)
  • Dupe Mode CH3/4 > CH1/2
  • Bass Boost 0-12 dB
  • Dimensions 150 x 50 x 220 mm
  • Efficiency up to 84%

The completely revised amplifiers of the QUANTUM Q compact class now offer as V3 version a higher power output and improved features. With a “footprint” of just 150 x 220 mm, the two power plants are completely designed as digital Class D power amplifiers. Their heavy die cast heatsinks contain state-of-the-art technology,, which sets new standards in terms of efficiency up to 90%. With the Auto Turn-On Function coupled to the high-level inputs, the two models are suitable for almost any installation, not only because of their size. Besides the conventional 12V version the Q-ONE and Q-FOUR are now available as 24V version and can be operated in trucks and coaches with a electrical system of 24 volts.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 89008797732

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Leon
Lowell, US
★★★★★ 4
Good product. What you see is what you get.
Color: 1-Navy Blue
Material feels sturdy and was a perfect fit compatible for my iPad. There's adequate grip and padding for a comfortable yet slim feel. Magnets hold it close and in one position when propping it up for watching landscape videos. Back is translucent as advertised. Solid product, put it on as i opened my new ipad for immediate protection. Perfectly safe blind buy if you're also getting that 'frequently bought together' suggestion from Amazon.
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Reviewed in the United States on June 1, 2026
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Sue Fowler
Pawtucket, US
★★★★★ 5
Nice iPad case. Good price, lots of colors,
Color: Papaya
Nice iPad case. Well made, fits great. Love the color!
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Reviewed in the United States on June 8, 2026
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savvy_shopper101
West Palm Beach, US
★★★★★ 5
Excellent iPad case!
Color: 1-Navy Blue
Excellent case! Perfect for what I needed, very stable, flexible and the color is great. I've had it for almost a year now and there's no damage or wear. Would buy again! Easy to use, stable mechanism to stand up right and wonderful color options!
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Reviewed in the United States on May 30, 2026
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Summer
Whiting, US
★★★★★ 5
Bright & Pretty Hot Pink.
Color: Pitaya Red, Color: Pitaya Red
Very pretty and bright. It’s thick and great quality. Strong grip and doesn’t come off easily. Easy to clean when it gets dirty. It also has a nice backing. I prefer the transparent bright pink backing than the clear version. I love the strong magnetic for when I position it upwards. It can be positioned downwards too.
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Reviewed in the United States on May 28, 2026
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LDC
Grantham, US
★★★★★ 5
Very protective iPad case
Color: 1-Navy Blue
This MoKo iPad case is excellent! It fits perfectly and provides great protection without adding bulk. The navy blue color looks very sleek, and the translucent back shell is a nice touch. It’s super magnetic, with great padding. The smart cover works flawlessly with the auto wake/sleep feature, and the cutouts line up perfectly for Touch ID. Lightweight, durable, and a fantastic value!
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Reviewed in the United States on May 24, 2026

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