ESX Q-FOURv3 - 4 Channel Amplifier
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 6 - Jul 11

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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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Amy Johnson
Lexington, US
★★★★★ 5
Worth it.
Color: Dark Brown, Size: 10
Adorable. Great quality. Fun little suit.
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Reviewed in the United States on April 7, 2026
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Sara Stolt
Port Orchard, US
★★★★★ 5
Handsome Son, Great Suit
Color: Brown, Size: 8, Color: Brown, Size: 8
We ordered this for my 9 yr old son who walked me down the aisle when I got married. It fit perfectly, was a great value, good quality, and looked great on him! The tweed pattern and color were perfect for the wedding.
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Reviewed in the United States on December 5, 2025
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ciera cox
Carnegie, US
★★★★★ 5
Give me 100 more!
Color: Green, Size: 6, Color: Green, Size: 6
ADORABLE. perfect fit, amazing strong structured material. I’ll take one in every color!
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Reviewed in the United States on March 2, 2026
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Julio D. Portillo
Whiting, US
★★★★★ 5
Adorable!!!
Color: Green, Size: 3, Color: Green, Size: 3
This suit is adorable! I got it in 2 colors. Made the perfect Christmas picture outfits. The quality is great. I got them 1 size up so they could fit in it longer, and size up was a little big as expected. Im happy they will fit in them for another year.
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Reviewed in the United States on January 15, 2026
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Elizabeth Johnson
Birmingham, US
★★★★★ 4
Well made and very nice material.
Color: Dark Brown, Size: 10
This is a great suit the quality material and the color is better than expected. The slacks have waist adjustments that help with comfort. Definitely worth the price. I give it 4 stars because it was supposed to be a slim fit but the jacket is really loose and not as form fitting as I expected, however the suit is worth the price. My son loves it ! Color is perfect for him!
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Reviewed in the United States on December 27, 2025

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