SKU: 66104550874

Audio Solution - Duo - Two Channel Amplifier

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Description

Audio Solution - Duo - Two Channel AmplifierDuo by Roberto Tognon *Be sure to call us directly for the best pricing* Product is in stock and shipping. We congratulate you for researching this really HI END amplifier. The amplifier you have reviewing is a realization conceived by those who love music. What is the "Duo" amplifier? "Duo" is the natural evolution of our top of the range "Quattro" but in 2 channel edition. It was created to provide similar performance at a more accessible price,

Duo by Roberto Tognon

*Be sure to call us directly for the best pricing*
Product is in stock and shipping.

We congratulate you for researching this really HI-END amplifier.
The amplifier you have reviewing is a realization conceived by those who love music.

What is the "Duo" amplifier?

"Duo" is the natural evolution of our top of the range "Quattro" but in 2 channel edition.

It was created to provide similar performance at a more accessible price, while remaining faithful to the philosophy of achieving maximum sound quality.

It is the result of over 1 year of research and development to build a car amplifier with exciting performance.

Also for "Duo" the collaboration with Roberto Tognon was decisive.

His experience and knowledge of music do contributed to the creation and development of this project.
The "Duo" adopts innovative circuit solutions with top quality components specific for audio use and will allow you to enjoy your favorite music without losing any detail or nuance.

The excellent measurements and the very high reliability in very compact dimensions make the "Duo" the new reference for car audio 2 channel amplifiers in its price range.


Product Overview
– SANKEN audio power stage
– High current power mosfet for single pair drive
– WURTH capacitors for power stage and for audio stage
– Gold plated PCB
– Nichicon MUSE audio capacitors
– CNC milled chassis
– High quality gold plated connectors
– OLED display for manage settings
– Input sensitivity set by numbers or by voltage sensitivity


Output power @4 ohm 2 x 235W rms
Output power @2 ohm 2 x 380W rms
Output power MONO @4 ohm 1 x 760W rms
Frequency response @ 1W 4Hz – 140KHz (-3dB)
THD+N (20Hz – 20KHz @ 1W) < 0.015%
THD+N (1KHz @ 5W) < 0.007%
S/N ratio > 105dB
Min input signal voltage 1 V rms
Max input signal voltage 10 V rms (30Vpp)
Working power supply voltage 11 - 15.5V
Current draw (typical @ 4 Ohm) 20A
Current draw (max @ 4 Ohm) 40A
Idle current (typical) 1.9A
Input impedance >20KOhm // 100pF

Display for monitoring:
Voltage IN
Chassis temperature
Channels level by number
Channels level by sensitivity
Firmware version
Serial number

Over temperature protection 85° (+/- 5%)
Dimensions Length=320mm – Width=210mm – Height=85mm
Weight 4.7 Kg
Working temperature 0 - 50°c


IMPORTANT NOTES:
- Please do use at least 12mmq (6 AWG) power cable for the B+ and GND.
- Near the positive battery pole, within 30-40cm, it is necessary to mount a fuse, better waterproof if the battery is housed in the engine compartment.
- The ground connection is normally done by connecting the amplifier's "GND" terminal to the car chassis, when you do this, make sure you find a safe and reliable grounding point, if necessary, remove impurities, paint residues etc. to ensure the better contact.
- Install the amplifier away from temperature-sensitive components.
- keep at least 5 cm of air above the amplifier.

Proper installation guarantees better performance, follow these notes for installation.

- Use only shielded cables to connect the audio signal between the car radio and the amplifier, it is not necessary to use very expensive cables, but do NOT use bad cables!

- The use of good quality RCA connectors guarantees a good contact, lasting over time and reliable even after several operations of insertion.

- Shielded cables must be kept at a minimum distance of 10cm c.a. from any generators of car noise, such as power units, pumps, cables, etc.

– For power connections use only good cables, of suitable sections and protected in the engine compartment.

The cables for car-audio applications are very flexible and therefore easy to install.
- Carefully take care of the laying of the cables and operate in order to follow different routes to signal cables from power cables.

- It is a good idea that the GND ground of the amplifiers is connected to the same point, together with the audio source's same ground.

– Fix the amplifier securely, to avoid its movement and then the cables jostling.
– The top side of amplifier has to have free air around, at least 10cm.

– A well-designed and equipped system may involve the collection of various devices, if this happens, ensure adequate ventilation of the place where the amplifiers are installed
perhaps with the aid of an additional forced air flow by a fan inside the various compartments.

This amplifier is designed to work only at 12V DC from the car battery, do not attempt to power it with AC or different voltages!
Install the device in a solid way that does not affect driver's guidance
Do not place the device in very hot places (such as the engine compartment).
Make sure that the installation location is not subjected to high humidity and / or splashes of water.
Perform solid and safe connections, using only cables of adequate section and type.
It is absolutely essential to install a fuse of adequate value near of the battery.
In the installation / uninstallation and maintenance operations it is absolutely necessary to remove the fuse located near the battery.

If the device is subjected to severe shocks that could visibly damage the chassis, let it be viewed by the service center or by a professional installer.
Keep the device clean and do not obstruct normal chassis ventilation, do not use aggressive detergents for cleaning.

The maintenance's allowed to the user are set sensitivity, display setting and the replacement of the fuse with identical characteristics, (to be performed as described in the "Diagnostics" paragraph).



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: 66104550874

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4.1 ★★★★★
Based on 857 reviews
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Leslie
Phoenix, US
★★★★★ 5
Fun for your dog and fun for you to watch their antics with this Interactive IQ Treat Ball
Size: 3 INCH, Pattern Name: IQ TREAT BALL 3"
This delightful ball is both a feeding utensil and a workout all in one! Your dog not only eats its calories, it burns them off at the same time! I have a little dachshund, Sophi, who loves her treat ball. They call it a treat ball but I use it for kibble that fits inside. Sophi doesn't need more treats than just a few every few days. If you fill this with treats, it's too much in my opinion, unless you have a really playful dog who needs to gain weight. You place the treats or kibbles inside one half of the ball (the one without the hole in it). Then you adjust the size of the hole in the white center piece to allow either one or a few pieces to fall into the chamber at a time. You place the white flat part over top of the kibbles and then screw on the other half. There is a hole in the end of the ball and once the kibble/treats roll around in the chamber and make their way through the one hole inside to the opposite chamber and then reach that hole, they fall out. Sounds complicated but it's not. This ball teaches the dog that rolling the ball makes treats/kibble fall out and they get to enjoy them. This is where IQ in the name comes in. It doesn't take long for a dog to figure out that they get treats by rolling the ball around and making them fall out. Not only does the dog get exercise pushing the ball around your floor, it really is entertaining to watch. Our Sophi hears the kibbles fall out and if she doesn't immediately see them, because the ball continues to roll, we get to see that "where are they?" and the floppy dachshund ears frantically searching. We have hardwood floors so the ball rolling quickly and bumping into table legs and furniture, Sophi trying to get the kibbles--it's quite a show that has us laughing a lot. It's a sturdy plastic ball, easy to fill and easy to put together. Small enough to tuck into a bag for travel--about the size of a baseball, or smaller. Will roll easy on carpet with a dog pushing it with their nose or very quickly on hardwood. Rather noisy on hardwood floors with the assertiveness of the dog and it bumping into things, so watching something on TV can be difficult. But the entertainment you get, who needs TV? It'll only hold about 1/2 c or a little more of small kibbles (you cannot pack it full) so it's more for multiple feedings, snacking or play. I ordered 2 of these so that when one was used and needed cleaned, there was always a clean one. I throw them in dish water or the dishwasher, top rack with no problem. No cracks or breaks in almost a yr of use. Highly recommend this interactive treat ball. Not only will your dog enjoy it, you will enjoy watching your dog enjoy it.
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Reviewed in the United States on November 22, 2015
K
Verified Purchase
Katie K
Natrona Heights, US
★★★★★ 5
Great Energy Outlet for an Active Dog!
Size: 4 INCH, Pattern Name: IQ TREAT BALL 4"
I have a 1 year old Australian Shepherd/Border Collie/Cattle Dog mix named Josie. When you look up "hyper-active dog" in the dictionary, you'll find her picture. She could run for days if she wanted to. I am always looking for things to help keep her from getting bored, and this treat ball is great! She was only about 3 or 4 months old when I got this and introduced it to her. With a little help from me, she figured it out in no time. Now she's a pro, and knows exactly how to paw at the ball to make it spin and fling food out. I have the 5-inch ball. Josie's not a big dog (40lbs) and she can get her mouth around the ball to pick it up. She only does this when it rolls onto the linoleum floor in the kitchen. I think it gets too loud for her (and me too!). I always put it away when the food is gone so she doesn't use it as a chew toy. She has never gotten bored of pushing it around and decided to chew on it. She can hear the food rattling around inside and continues to play with it until it is empty. This isn't the type of toy that you would give to your dog, and then leave them unsupervised. The ball is made out of hard plastic, and does make a loud banging when it runs into walls, chairs, etc., but it has never left any marks on my walls or furniture. I actually prefer she use it on the carpet because it's quieter and she always gets all of the food pieces (it works just as well on carpet as it does on a hard floor, fyi). If I lived on the bottom floor or in my own house, I wouldn't have a problem with her using it on hard floors, however she always brings it back to the carpet on her own when it rolls off. I like that the hole on the middle divider is adjustable, and you can also just take the middle part out of the ball so you can fit more food inside, the dog can see the food so they're more motivated to get it, or to make it easier for a younger/older dog to get food out. My dog loves this ball. She gets excited when I take it out and start filling it with food. With the divider it has enough room for half of her portion. She always goes for the ball first, empties it, then to her dish. When she's done eating she always lays down and takes a nice long nap. I know that she enjoys it, and it definitely gives her 15-20 minutes of good, mentally-stimulating indoor exercise. It also taps into their prey-drive, and I think that helps make your dog feel like a dog. Overall this is another great buy from Amazon. I did see it at the pet store (after I had gotten mine) for double the price! ***If you have a dog that is food-motivated and needs something to do, buy this. It's worth it.***
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Reviewed in the United States on October 26, 2011
A
Verified Purchase
A.Q.
Waukegan, US
★★★★★ 3
Great toy while it lasts
Size: 3 INCH, Pattern Name: IQ TREAT BALL 3"
We purchased one of these for our 10 pound Malshipoo as she gets bored easily and this thing definitely keeps her busy for awhile while she tries to get the treats out. She rolls and kicks it hard enough that I'm sometimes fearful it will break but after having owned it for 14 months it's actually held together quite nicely to my surprise. I think it came apart once and that's probably because I didn't have it screwed on correctly. The only reason I didn't rate it higher was two things: First, I don't like that the top section is in two parts and you have to fit them together just right for it to screw on. Why not make it one solid piece on the top? The second reason I didn't rate it higher is the white plate with the hole you twist to make the hole bigger or smaller is now a lot looser so when our dog bangs this against a wall or anything hard the hole shifts and makes it bigger thus the game doesn't last as long. So I'm purchasing a new one and hoping this doesn't happen again. I guess it's just wear and tear but I would have like it to last longer than 14 months. Maybe I guess my expectations aren't realistic. Hopefully the next one lasts longer.
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Reviewed in the United States on February 18, 2025
E
Verified Purchase
E. Ziegler
Natrona Heights, US
★★★★★ 4
This is a good toy to keep some dogs busy
Size: 4 INCH, Pattern Name: IQ TREAT BALL 4"
I purchased this for my pitbull that is very food driven. One thing I first noticed about this ball is the type plastic it's made of. It's similar to the plastic they use for some cheap hamster balls. I would be cautious If you live in a two story home that doesn't have carpeted stairs because this my break after falling down the stairs or a few drops from a few feet. If you have a small dog, be cautious if they bite onto the ball because they can get their teeth stuck in the small holes. I would also advise people with large dogs with strong jaws from this toy because if they crush this plastic, the edges will be sharp enough to cut their mouths. The first thing you would have to do is adjust the center white disc to the size of the treats. If you make the hole too big, too many treats will fall out too fast and it will shorten the time you dog will play with this. You can put small training training treats or dog food in the bottom half of the ball. I use my dogs food for my dog. Be mindful of the amount of the treat's calories and the quantity you put in the ball. Just make sure you account the extra calories for the amount of exercise your dog receives otherwise you may have a chubby doggy. After filling the bottom half and placing the white disc on top of it, all you have to do is screw on the top and its ready for your dog to work for their tasty snacks. I wouldn't have given this to my dog when she was younger because was the type of dog that would of destroyed the toy when she was aggravated with it just to get to the treats. Now she's learned to figure out toys before she brings it to me to help her out. I usually fill it up with some low calorie food and when she gets down to the last few bits, she gives up on the toy and leaves it where it is or brings it back to me to open it up for the last few pieces. I was surprised after several uses, the lid never accidentally came unscrewed while my dog was playing with it. Overall this is a good toy to keep my dog occupied for 20-30 minutes. Shes a pretty smart dog and shes learned how to get the treats out fairly quick. Your mileage may vary depending on the size and shape of your treats you put in.
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Reviewed in the United States on December 31, 2017
B
Verified Purchase
Brittany Myers
West Palm Beach, US
★★★★★ 5
Kept our dog busy!
Color: Navy Blue, Color: Navy Blue
We have a 4 month old corgi and he is obsessed with this toy. The puzzle pieces move really easily so they are able to get into it but also create enough of a puzzle for them to move around.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026

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