SKU: 72226762543

Audio Solution - Quartetto - Four Channel Amp

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Description

Audio Solution - Quartetto - Four Channel AmpAudio Solution amplifier by Roberto Tognon QUARTETTO Proudly handcrafted in Italy Please call us directly for the best up to date pricing In stock and shipping to USA, Canada and Mexico! We appreciate your interest in this Extensive HI END, hand assembled, Car Audio amplifier imported from Italy. The amplifier you are reviewing is a realization conceived by those who love the ultimate in sounds, and music as it was recorded for playback in your 12

Audio Solution amplifier by Roberto Tognon

QUARTETTO

Proudly handcrafted in Italy

Please call us directly for the best up to date pricing

In stock and shipping to USA, Canada and Mexico!

We appreciate your interest in this Extensive HI-END, hand assembled, Car Audio amplifier imported from Italy.

The amplifier you are reviewing is a realization conceived by those who love the ultimate in sounds, and music as it was recorded for playback in your 12 volt environment(s).

What is the "Quartetto" amplifier?

"Quartetto" is the natural evolution of our top of the range "Quattro".

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 "Quartetto" the collaboration with Roberto Tognon was decisive.
His experience and knowledge of music do contributed to the creation and development of this project.

The "Quartetto" 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 "Quartetto" the new reference for car audio amplifiers in its price range.

Product Overview:
– SANKEN audio power stage
– High current power mosfets for single pair drive
– WURTH capacitors for power stage and for power audio stage

– Gold plated PCB

– Nichicon MUSE / ELNA Cerafine audio capacitors

– CNC milled chassis
– High quality gold plated RCA connectors
– OLED display for managing settings
– Input sensitivity set by numbers or by voltage sensitivity

Technical specifications

Output power 4ch @4 ohm 4 x 125W rms
Output power 4ch @2 ohm 4 x 200W rms
Output power 2ch @4 ohm 2 x 400W rms
Frequency response @ 1W on 4 Ohm 4Hz – 150KHz (-3dB)
THD+N (20Hz – 20KHz @ 1W) < 0.01%
THD+N (1KHz @ 5W) < 0.005%
S/N ratio > 105dB
Max input signal voltage 10 Vrms (30Vpp)
Working power supply voltage 11 – 15.5 Vdc
Current draw (typical 4ch @ 4 Ohm) 15A
Current draw (max 4ch @ 4 Ohm) 40A
Remote control current 0.015 A
Standby current < 0.9 mA
Idle current (typical) 1.8A
Input impedance >20KOhm // 220pF

Display for monitoring:

Voltage IN (*1)
Chassis temperature (*2)
Channels level by number
Channels level by sensitivity
Hardware version
Firmware version
Serial number
Setup color around knob

Over temperature protection 85°c (+/- 5%)

Dimensions:
Length 320mm
Width 205mm
Height 80mm

Weight 10.5822 pounds
Working temperature 0 - 50°c

*1 – Voltage read tolerance (+/-) 2,2%
*2 – Temperature read tolerance (+/-) 1,5%

N.B. The data may vary without notice due to design adjustments or aesthetic changes.


From the assembly tech team: 
-This amplifier is designed to work only in a 12V DC electrical environment.
-Do not attempt to power it with AC or different voltages!
-Install the amplifier in a solid, flat and secure way that does not affect the driver's guidance or the ability for the device to become airborne.
-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 length, gauge and use oxygen free copper wires for power, ground and remote connections.
- It is absolutely essential to install a fuse of adequate value near of the battery.
- In the installation / removal and maintenance operations it is absolutely necessary to remove the fuse located near the battery before any connection or wires are removed to protect the safely of all individuals and electronics if the device is subjected to severe shocks that could visibly damage the chassis
-Let it be viewed by a certified professional installer.
-Keep the device clean and do not obstruct normal chassis ventilation,
-Do not use aggressive detergents for cleaning.


**PLEASE refer to the owners manual for more specs, data and installation guidance for the best possible  performance in this hand built masterpiece.

 

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: 72226762543

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George
Massapequa, US
★★★★★ 5
Good basic shirts for regular wear
Number of Items: 2, Color: Black, Size: X-Large
I bought these for exercise recently and they’ve been really noice. The cotton feels thick but not too heavy, and after a few washes the color hasn’t faded much at all. They run a bit big -just feels a bit loose, but thats pretty comfy and actually nice since it circulats air nicely Heres some pros and cons for ya. Pros: Nice heavy cotton, not thin like some other brands Holds color pretty good after washing 2 pack is good value Cons: Sizing runs a little big Shrinks a bit in dryer if you use high heat Overall solid everyday tshirts for casual wear and stuf- nothing fancy but they do the job and feel like they’ll last longer than the most ones i feel.
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Reviewed in the United States on August 21, 2025
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Reese D
Los Angeles, US
★★★★★ 5
Great fit
Number of Items: 2, Color: Black, Size: Small
Fits well and feels great. The material is breathable but does not look or feel cheap. The fabric has the right thickness and can be worn all year around
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Reviewed in the United States on May 8, 2026
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leilei
Birmingham, US
★★★★★ 5
Quality shirts that have lasted a long time
Number of Items: 2, Color: Black, Size: Medium
My kid has had these for a few years and they are quality shirts. Good heavy weight, they held their shape and color over the years.
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Reviewed in the United States on June 7, 2026
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Claire
Lowell, US
★★★★★ 4
Good shirt
Number of Items: 2, Color: Purple, Size: X-Small
I had to return this shirt but it wasn’t because of the quality of the shirt. It was simply too big and I didn’t order the right size. The shirt itself was very soft and great purple color. And I like that you get 2 for so cheap!
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Reviewed in the United States on September 24, 2025
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Ashleigh L.
Boise, US
★★★★★ 5
Great for tie dye!
Number of Items: 2, Color: White, Size: Medium
Decent shirts at such a great price! Perfect for our tie dye activity!
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Reviewed in the United States on June 7, 2026

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