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Description
Audio Analogue “Maestro Anniversary” 150W Zero Feedback Integrated AmplifierAudio Analogue Maestro 150W Integrated Amplifier 150W Zero Feedback Integrated Amplifier designed by AIRTECH, with RC10000 remote control. Maestro Anniversary was born in AIRTECH's laboratories following to the experience gained with the development of Puccini Anniversary. The basic scheme is very similar, but with one important difference: the amplification chain is fully balanced from the input to the power stage which becomes unbalanced to connect
Audio Analogue Maestro 150W Integrated Amplifier
150W Zero Feedback Integrated Amplifier designed by AIRTECH, with RC10000 remote control.
Maestro Anniversary was born in AIRTECH's laboratories following to the experience gained with the development of Puccini Anniversary. The basic scheme is very similar, but with one important difference: the amplification chain is fully balanced from the input to the power stage which becomes unbalanced to connect to the speakers. This took to a doubling of amplifier stages and attenuation. Also in the Maestro Anniversary all stages are without global feedback. The feedback is not even used on preamp stage(as in Puccini). The output power was increased to 150W on 8Ω with the consequent adjustment of all the driver and power stages that now use four pairs of transistors per channel. The basic configuration remains inverted cascode that is comparable to a single gain stage followed by the output buffer. The stability of the working point is maintained through a DC Servo that begins to work only at frequencies below a few tenths of Hertz (then totally out of the audio band). Thanks to a so refined circuitry, along with the selection of components of the highest level (military standard resistors, polypropylene audio grade capacitors custom made for AIRTECH, internal wiring with 7N OCC copper and pure copper output connectors) helped to create an amplifier that has the honour of being the heir of the glorious Maestro Integrated and therefore fully joins the Anniversary line celebrating at the same time, the first 20 years of Audio Analogue, but also 15 years by the introduction of AUDIO ANALOGUE's first product to bear the Maestro name. The new Maestro Anniversary is a unique amplifier, its remarkable power that always doubles with decreasing impedance and its extraordinary driving skills, are accompanied by a unique musicality and refinement not common for so “muscular” amps. Unfortunately it is not easy to express in words all its peculiarities and therefore we invite you to listen to it as soon as possible and can only confirm that now more than ever MUSICA MAESTRO!!!
Technical description
The amplifier is fully thought of as composed of three separate elements. 1. Power. It 'made with a 600VA transformer for each channel. The rectifier bridge is realized with discrete diodes ultrafast 50A each. The filtering capacity is 16800μF by branch so the amplifier has a total filter of 67200μF. At the switching on, the inrush current is limited by resistors variable with the temperatures that after the powering are excluded from the signal path. 2. Amplifier. There are two amplifiers (right channel and left channel) totally separated each another both as ground, as power supply stages connections. They have no common link. Even the digital commands for the control of volume chip are optically isolated. It's real a dual mono configuration. The copper footprints of the PCB have a double thickness compared to the standard to ensure the passage of large currents involved. The routing of the PCB has long been studied to optimize the signal paths and maintain the symmetry of the stages. 3. Preamplifier. Just like the power amp circuits also preamplifiers are dual mono. Immediately behind the input connectors there are relays for the channels switching followed by a discrete components buffer, to isolate the amplifier from the source. The maximum acceptable input voltage is approximately of 6VRMS. The buffers, both balanced as for the inputs as for the outputs, ranging for driving in class A the four(for each channel) volume chips. The latter, as in the case of the Puccini are simply strings of resistors without any operational inside them. This choice was made to not have any kind of global feedback within the Maestro. After the volume control stage we have the real preamp that amplifies up to about 12dB. The three elements described above are physically housed on three separate boards so it's like having a power supply, a preamplifier and a separate power
amp.
Optional Upgrade R/R Relays and Resistors Volume Control
Analog Relays /Resistors volume control solves the following problems:
-
allows remote adjustment with remote control;
-
guarantees a high purity of the signal and a service life of 10 million drives through the use of high quality signal relays and precision military resistors;
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reduces "click" and "pop" disturbances typical of relay controls;
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maintains a perfect balance between right and left channels even at low listening levels;
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does not use op amps on the signal path to maintain our "Zero Global Feedback" philosophy.
Technical features
| Channels 2 |
| RCA inputs 3 |
| XLR inputs 2 |
| Input impedance 47KOhm |
| Maximum input signal 6Vrms |
| Power on 8Ω load 150W @ 1% THD + N |
| Power on 4Ω load 300W @ 1% THD + N |
| Power on 2Ω load 500W @ 1% THD + N |
| Sensitivity(8Ω output nominal power)720Rrms |
| Frequency Response(Att. 0dB, -3dB band) 90KHz |
| Output resistance(2Ω nominal power and 1kHz) 0.2Ohm |
| Input Noise(Band limits 0Hz-80kHz/A-weighted)=20µV/=10µV |
| SNR=100 dB |
| Standby power consumption(230VAC) 0.7W |
| Dimensions(HxWxD)168x450x550 mm |
| Weight 31 Kg |
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
4.3 ★★★★★
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Product Reviews
★★★★★ 5
Well built
Color: Rustic Brown
Very nice shelving. We remodeled our bathroom and they fit perfect behind toilet
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Reviewed in the United States on May 14, 2026
★★★★★ 3
Damaged Product
Color: White
Item has some parts of the board being damaged. The quality of the wood is not good.
Very disappointed.
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Reviewed in the United States on February 15, 2026
★★★★★ 5
Perfect for the bathroom
Color: Dark Brown, Size: 15.7 inch, Color: Dark Brown, Size: 15.7 inch
I recently installed the these floating shelves with Wire Storage Basket, and I'm genuinely impressed with their blend of style and practicality. The shelves were easy to mount, and the included hardware felt sturdy, ensuring they're securely in place. Right off the bat, I noticed the quality of the materials; the wood has a nice finish, and the wire basket is well-constructed, promising durability.
Functionality is where these shelves truly shine. The wire basket is perfect for storing smaller items, keeping them organized and within easy reach, while the shelf space is great for displaying decorative pieces. They've helped me declutter my space and add a touch of rustic charm at the same time.
Aesthetically, these shelves look great in my bathroom. Overall, these floating shelves have exceeded my expectations, offering a stylish and functional storage solution that's built to last.
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Reviewed in the United States on January 9, 2026
★★★★★ 5
Looks great and holds firm.
Color: Dark Brown, Size: 15.7 inch
Looks great in my bathroom. Great functionality and good quality shelving and frame. I wouldn't stack an Encyclopedia Britanica on it, but it will solidly hold bathroom items with no problem. I added a couple of motion-activated rechargeable light on each side of this unit and it really looks great while serving a very practical purpose.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Looks great
Color: Dark Brown, Size: 15.7 inch, Color: Dark Brown, Size: 15.7 inch
Ive had this shelf for 2 months now and love it! It looks grwat, was easy to put together and pretty sturdy.
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Reviewed in the United States on May 28, 2026