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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
4.4 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Great toys for aggressive chewers
Size: Medium/Large, Color: Turkey Day Drumstick - Large
These are great toys they last a while they are destroyed after a while but both dogs are aggressive chewers but they last about a year and a half. And they are go to toys they have one that is a shark mouth and they love it I have bought 4. (two of them the pups lost ).
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Reviewed in the United States on December 20, 2025
★★★★★ 4
Durable and Fun, Just Gets a Bit Rough
Size: Medium/Large, Color: Chopper - Large
This is a really good toy overall, especially if you have dogs that love to chew. My dogs were immediately into it—they play with it nonstop, toss it around, and stay entertained for a while, which I love. It definitely holds up better than most toys we’ve tried.
The only reason I’m giving it 4 stars instead of 5 is because over time it does start to fray a bit and gets a little rough, especially with heavy chewing. It’s not completely indestructible, but it still lasts longer than a lot of other toys.
Overall, still a great buy and I would recommend it if your dogs need something tough but fun!
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Reviewed in the United States on April 4, 2026
★★★★★ 5
Worthwhile!
Size: Medium/Large, Color: Turkey Day Drumstick - Large
I have a small dog with a really strong bite! Usually have to buy toys that are meant for bigger dogs. This has lasted us for what feels like forever. It does sound very heavy when dropped! My dog loves it though! Would definitely recommend!
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Ohhh Mr. Iguana
Size: Medium/Large, Color: Illana the Iguana - Large
Mr. Iguana is a house favorite! I got my first one of these in a barkbox and my dog loved it so much, i went on the hunt for another one. Amazon saved the day! I own about 7 of these now. They are prefect for dogs just love to chew, they hold up great! And they are heavy duty, super easy to clean! My dogs are very happy, great value for the money! Doesn't have a smell, vibrant colors! Noise level is quiet, minus my dogs chewing !
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Reviewed in the United States on August 13, 2025
★★★★★ 3
Not for strong chewers
Size: Medium/Large, Color: Dog Ness Monster - Large
Initially, I really liked this for my dog. She is about 8 months old and still loves to chew and destroys most toys in a few minutes. When we got this, it seemed like it would hold up for a while despite being clearly gnawed on. Unfortunately, once she focused on the softer "water" portion of the toy, that is where things went downhill with this toy. After a few short chew sessions, she was tearing chunks out of it. We had purchased a replacement since she liked the original so much, and after about 5 minutes with the replacement, she had taken enough out of the blue section that we immediately threw that one out as well. Overall while the green portion held up, the blue didn't. I can't recommend this for strong chewers.
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Reviewed in the United States on December 8, 2025