SKU: 57750327597

Esx Quantum Digital 4Ch Mini Amp Qm-Four

Sale price$103.05 Regular price$114.50
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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Description

Esx Quantum Digital 4Ch Mini Amp Qm-FourVersatile 4 Channel Class D Amplifier with Bridgeable Option Power Output: 4 x 52 Watts RMS @ 4 Ohms 4 x 90 Watts RMS @ 2 Ohms 2 x 180 Watts RMS bridged @ 4 Ohms Amplifier Type: Class D Features: Highpass Filter: 40 250 Hz Lowpass Filter: 40 250 Hz Bass Boost: 0 6 12 dB Line Outputs Clipping LED High Level Input with EPS and Auto Turn On Efficiency up to 90% The versatile 4 channel Class D amplifier delivers powerful audio performance with its RMS

Versatile 4-Channel Class D Amplifier with Bridgeable Option

Power Output:

  • 4 x 52 Watts RMS @ 4 Ohms
  • 4 x 90 Watts RMS @ 2 Ohms
  • 2 x 180 Watts RMS bridged @ 4 Ohms

Amplifier Type: Class D

Features:

  • Highpass Filter: 40 - 250 Hz
  • Lowpass Filter: 40 - 250 Hz
  • Bass-Boost: 0 / 6 / 12 dB
  • Line-Outputs
  • Clipping LED
  • High Level Input with EPS and Auto Turn On
  • Efficiency up to 90%

The versatile 4-channel Class D amplifier delivers powerful audio performance with its RMS power of 52 Watts at 4 Ohms and 90 Watts at 2 Ohms. Additionally, it can be bridged to provide 2 x 180 Watts RMS at 4 Ohms, offering flexibility in your audio setup. The amplifier features highpass and lowpass filters, allowing you to fine-tune the sound in the frequency range of 40 to 250 Hz. You can also adjust the bass-boost by 0, 6, or 12 dB to suit your preferences.

Designed with convenience in mind, the amplifier comes with line-outputs and a clipping LED indicator. Its high-level input supports EPS (Electrical Power Supply) and Auto Turn On, making installation hassle-free. With an impressive efficiency of up to 90%, this Class D amplifier ensures efficient power consumption and optimal performance for your car audio system.

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: 57750327597

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4.6 ★★★★★
Based on 17 reviews
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A
Verified Purchase
Ashley H.
Omaha, US
★★★★★ 5
Sturdy and sharp
Color: White, Size: 32"W x 6.7"D, 3 Pack
Sturdy, nice finished look. Easy to install and light weight.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
A
Verified Purchase
Ali*GOAT*
Lexington, US
★★★★★ 5
Love love love shelves !
Color: Oak, Size: 32"W x 6.7"D, 3 Pack, Color: Oak, Size: 32"W x 6.7"D, 3 Pack
Packages well, came will all the tools you need for installation highly recommended I would buy again.
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Reviewed in the United States on May 24, 2026
L
Verified Purchase
Lynnette
West Palm Beach, US
★★★★★ 5
Not too thick and durable and sturdy.
Color: Rustic Brown, Size: 24"W x 6.7"D, 3 Pack
Just before I purchased these 3 I bought 2 sets of 2 larger ones. The color is exactly what I was needing. They are packaged together so no scratches or damage. My husband (the installer) says they are easy enough to install. They are perfect for a diy update, durable and hold plenty of weight for their size. Happy happy customer
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Reviewed in the United States on May 8, 2026
J
Verified Purchase
Jose
Houston, US
★★★★★ 5
Good quality for the price
Color: Black, Size: 30"W x 6.7"D, 3 Pack, Color: Black, Size: 30"W x 6.7"D, 3 Pack
Seamless floating shelves that look and feel great. I opted to use different drywall anchors since I didn't trust the ones that came with the product. I have bad drywall and no studs where I was mounting so that doesn't fall back onto the product. The shelves are true to size and have held up great. The shelves themselves aren't too heavy so it leaves some room to add weight onto them. I used the 30in long shelf on the left and 24in long shelf on the right to create a nice corner shelf. There are additional screws on the bottom the keep the shelves from moving off the bracket.
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Reviewed in the United States on February 18, 2026
J
Verified Purchase
josseline m.
Birmingham, US
★★★★★ 3
Be careful
Color: Oak, Size: 24"W x 6.7"D, 3 Pack, Color: Oak, Size: 24"W x 6.7"D, 3 Pack
They are nice but flimsy, not flush on the wall scared they might fall
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Reviewed in the United States on January 27, 2026

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