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Description
Quantum Audio QPX2800.4 4-Channel 1440W RMS QEA Series Class A/B AmplifierQPX2800. 4 4 Channel Stereo Amplifier 3600 Watts FEATURES: Class A B Circuitry 2 Ohm Load Stereo Capability Amber Glow Logo Badge Audiophile Grade Components Speaker Short Circuit Protection High Efficiency Mosfet Design 12 dB Variable High Pass and Low Pass X over Selectable: 0, 6, 12 dB Octive Bass Boost Buffered Line Output for Easy Daisy Chaning SPECIFICATIONS: Dynamic Power : 3600 Watts 4 x 180 Watts @ 4 Ohm Stereo 4 x 360 Watts @ 2 Ohm Stereo 2
- QPX2800.4 4 Channel Stereo Amplifier / 3600 Watts
- Class A/B Circuitry
- 2 Ohm Load Stereo Capability
- Amber-Glow Logo Badge
- Audiophile Grade Components
- Speaker Short Circuit Protection
- High Efficiency Mosfet Design
- 12 dB Variable High Pass and Low Pass X-over
- Selectable: 0, 6, 12 dB/ Octive Bass Boost
- Buffered Line Output for Easy Daisy-Chaning
- Dynamic Power : 3600 Watts
- 4 x 180 Watts @ 4 Ohm Stereo
- 4 x 360 Watts @ 2 Ohm Stereo
- 2 x 600 Watts @ 4 Ohm Bridged
- Ch 1-2 High Pass Crossover: 60Hz-1.2KHz
- Ch 3-4 High pass Crossover: 60Hz-1.2KHz
- Ch 3-4 Low pass Crossover: 50Hz – 400Hz
- X-Over Slope: 12dB
- Bass Boost @ 45Hz: 0-12dB
- Input Sensitivity: 285Mv – 6V
- Signal to Noise Ration >90dB
- THD at 1%: <0.1%
- Length: 13.7” / 348mm
- Width: 8.6” / 220mm
- Height: 1.96” / 50mm
FEATURES:
SPECIFICATIONS:
DIMENSIONS:
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.9 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
My children occasionally need a really good nights rest.
Sometimes my kids need a good night's rest and this is my go-to product for that! The raspberry flavor makes it easy for them to take as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 6, 2024
★★★★★ 5
First time
Works like a champ
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Happily Surprised
These actually work as described! Very pleased
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Reviewed in the United States on March 29, 2026
★★★★★ 3
Didn't Notice Difference
The taste is actually pretty good, honestly it's more like a treat than a supplement... but I haven't noticed any significant changes after going through the entire bottle. They didn't cause any upset stomach or side effects, which is a plus, but the overall benefits feel negligible.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
GREAT CONCEPT AND DESIGN
I bought these Feminine Balance Gummies because I was intrigued by the approach that was utilized. For me, I have been involved with lactobacillus formulas and probiotics with incorporating yogurt (the really healthy kind not the ones with a lot of advertising) to deal with yeast overgrowth. Typically I am experiencing a problem because I am consuming too much sugary foods (causing the body's resources to be depleted) or because I have taken a course of antibotics which killed both the good and bad bacteria in the body and now needs replenished.
So, my first impression was the intrigued by the use of Pineapple as a part of the formulation, which is unusual but a good choice nonetheless because it is very beneficial for digestion and also for pain reduction. I liked the taste of the gummy, it tasted like Pineapple candy. The inclusion of Vitamin C seemed a bit of a stretch and is included to enhance the immune function. There are lactobacillus strains but the manufacturer has kept the strains used as a proprietary secret - which I find a bit frustrating as a consumer. Whatever it is, there is a billion of them (is this per gummie?).
The manufacturer does support the use of vegan only products, it is also "clean" Halal, it is gluten free and allergen free. So, it appears they have carefully considered the inclusion of each ingredient for benefit.
So here is the real test, yes, I have had the desired outcome by improving my "lady garden" and this is a very viable product in my opinion. I would recommend it to others.
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Reviewed in the United States on May 30, 2026
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