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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
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Description
Optimal Audio SmartAmp 20: 4-Channel 125W Amplifier with DSP/EQThe Optimal Audio SmartAmp 20 is a powerful and versatile four channel amplifier designed to deliver exceptional audio performance in commercial settings. Equipped with integral Digital Signal Processing (DSP), it optimizes the performance of the Optimal Audio loudspeaker range, making it ideal for various applications from retail environments to live music venues. Features Four Channel Output: Delivers 4 x 125W power output, supporting both low
The Optimal Audio SmartAmp 20 is a powerful and versatile four-channel amplifier designed to deliver exceptional audio performance in commercial settings. Equipped with integral Digital Signal Processing (DSP), it optimizes the performance of the Optimal Audio loudspeaker range, making it ideal for various applications from retail environments to live music venues.
Features
- Four-Channel Output: Delivers 4 x 125W power output, supporting both low impedance (4Ω-16Ω) and high impedance (70V/100V) speaker connections.
- Built-in DSP: Features digital signal processing with EQ and limiter presets specifically tailored for Optimal Audio loudspeakers, ensuring optimal sound quality.
- Power Sharing Technology: Allows for a maximum of 250W output shared between each pair of channels, enhancing efficiency and flexibility in power distribution.
- Compact Design: Half-width 1U rackmount design enables two units to be mounted side by side, saving valuable rack space.
- Universal Power Supply: Power factor correction technology supports universal AC mains operation, providing reliable performance worldwide.
Specifications
- Type: Class D power amplifier with DSP
- Power Output (4Ω - 16Ω): 4 x 125W
- 70V-100V Output: 4 x 125W
- Cooling: Forced air cooling with fan
- Analogue Inputs: 4 balanced line inputs on Euroblock connectors
- Signal to Noise Ratio: > 100 dB (A-weighted, 20 Hz – 20 kHz, 8 Ω load)
- Frequency Response: 20 Hz – 20 kHz (+0/-0.25 dB at 8 Ω load)
- Total Harmonic Distortion: < 0.05 % (20 Hz – 20 kHz, 8 Ω load)
- Dimensions: (W) 220mm x (H) 44mm x (D) 353mm
- Weight: 2.4kg
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
4.2 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Got it fast and works great
Very nice looking and works fast!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
★★★★★ 5
So easy
I love it
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Reviewed in the United States on June 3, 2026
★★★★★ 4
Nice tool, but with a 4 year life span.
I bought this on Nov. 2020, after hand surgery left me temporarily unable to do simple yet necessary tasks- like opening a wine bottle. 🤪
It's compact, nicely designed, and reliable. I kept it plugged in all the time with no issues. The only negative so far is the blue light which stays on whenever the unit is in the base, fully charged or not. (Not a fan of the many small yet bright lights from all appliances! Placing a Talking Yoda figurine in front of it blocked enough of the light to satisfy me).
I found it easy to use and appreciated the foil cutter. Worked well on all types of corks.
Flash forward to spring 2024... Despite the constant charging, the corkscrew dies at maybe a half inch into the cork. Just slows down and dies. Having read earlier reviews, I may try to crack it open and replace the battery. But ultimately, having regained my hand strength back, I'm more likely to go back to an old fashioned, reliable, hand operated corkscrew and celebrate the loss of weird lights and needed electricity.
Conclusion: unless you are recovering from hand surgery, just get a good quality non- electric corkscrew and use it for 75 years (optimistically). Best deal ever. And you can take it camping too.
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Reviewed in the United States on July 2, 2024
★★★★★ 5
Wonderful opener
Color: Black
FINALLY!! A product that works efficiently, exactly as promised, and does an excellent job with no learning curve. This wine opener is easy to use, and works exactly as it should. The capsule cutter works like a breeze, and the cork lifter is smooth and fast. It pulls the cork, then reverses, and pushes the cork back off and into your waiting palm. Totally impressive! Wish all products were made as well.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Great wine ipener
Color: Black
Works great and good cutter. I wish the base was a little smaller I don’t need to display the wine aerator so it would have been better to make the base small and just be a charger and bottle cutter holder
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Reviewed in the United States on April 29, 2026
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