To produce our product range we use: Hi-Tg FR-4 double-sided PCBs by Isola, NXP low voltage transistors, Texas Instruments operating amplifiers, electrolytic capacitors ESX and EXR series and polyester capacitors MER series by Hitano, chip resistors by Hitano, Yageo, Bourns, International Rectifier power modules. All hardware components are purchased directly from the producers or their official dealers.
Power amplifier boards of active AS
All power amplifier boards of Hi-End two-sided Amati Solo acoustic systems operate both in the inverting and “tube” modes, producing dynamic and realistic sound images.
Listen to the tube sound without distortions!
Features of our power amplifier boards:
Amati Solo AS 4330I v1.1
Hi-End single-channel amplifier board Amati Solo AS 4330I v1.1 with MOSFET output transistors can operate both in the inverting and “tube” modes. Differential input stages of power amplifiers are placed on the matched amplifiers for the amplifier cascade balance.
Amati Solo AS 4330I power amplifier board
Technical Specifications of Amati Solo AS 4330I v1.1*:
Number of channels |
1 |
Class of power amplifier operation |
AB |
Power output (RMS), with loading 4 ohm |
60 W |
Input impedance |
48 kOhm |
Frequency range, on level - 3dB |
10 - 50 000 Hz |
Signal to noise ratio, min |
95 dB |
Total harmonic distortion index (THD), max |
0,01 % |
Intermodular distortion index (IMD), max |
0,02 % |
Operating supply voltage |
± 26 V |
Amati Solo AS 5350I v2.1
Hi-End single-channel amplifier board Amati Solo AS 5350I v2.1 with MOSFET output transistors can operate both in the inverting and "tube" modes. Differential input stages of power amplifiers are placed on the matched amplifiers for the amplifier cascade balance. No feed-through capacitors are used.
Amati Solo AS 5350I v2.1 power amplifier board
Technical Specifications of Amati Solo AS 5350I*:
Number of channels |
1 |
Class of power amplifier operation |
AB |
Power output (RMS), with loading 4 ohm |
90 W |
Input impedance |
47 kOhm |
Frequency range, on level - 3dB |
10 – 50 000 Hz |
Signal to noise ratio, min |
95 dB |
Total harmonic distortion index (THD), max |
0,01 % |
Intermodular distortion index (IMD), max |
0,02 % |
Pulse output current, max |
30 А |
Operating supply voltage |
± 35 V |
Amati Dual AS 1210I v1.1
Hi-End double-channel amplifier board Amati Dual AS 1210I v1.1 enables the connection of twitters. Power amplifier can operate both in the inverting and “tube” modes. Input stages are placed on the operating amplifiers by Linear Technology (USA) with current feedback LT1210 which enable the audio-signal transmission without phase shifting and frequency-response throughout the entire frequency range. No feed-through capacitors are used.
Amati Dual AS 1210I board
Technical Specifications of Amati Dual AS 1210I v1.1*:
Number of channels |
2 |
Power output (RMS) |
2 x 20 W |
Input impedance |
10 kOhm |
Frequency range, on level - 3dB |
10 – 50 000 Hz |
Signal to noise ratio, min |
90 dB |
Total harmonic distortion index (THD), max |
0,005 % |
Intermodular distortion index (IMD), max |
0,01 % |
Output pulse current, max |
2 А |
Operating supply voltage |
± 15 V |
DSP boards of active acoustic systems
All DSP boards with TOSLINK digital optical inputs, BlueTooth- and analogue inputs to enable the choice of the system components. The user can connect the DSP module with different power amplifier boards, change the DSP program for frequency-response correction to adjust sound levels for a concrete room.
Create your home acoustics yourself!
DSP modules have no parallel in the way of separate component connection (such as power amplifier board, external DAC modules, power adapter). All components are combined into a single unit without connection cables. This type of connection prevents the signal loss during its transmission between units, reduces the impact of any external interference on the connection cables (as we don’t use them). Eliminating the usage of expensive interconnecting cables we made our acoustic systems unique in its kind without any additional expenses.
DSP board in connection with 3 power amplifier boards
No need to decide on what cable is better!
The DSP boards (ADAU1702 models by Analog Device Inc. and oversampling filter CS8422 by Cirrus Logic Inc.) process the incoming digital signal in 56-bit format, correct amplitude-frequency and phase-frequency characteristics and divide signal between the speaker drivers. Then absence of feed-through capacitors ensures the absence of any specific dynamic distortions.
DSP board features:
Audio inputs:
Плата Amati DSPDual-Solo board
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*Our company follows the policy of continuous development and product improvement. Therefore technical specifications and amplifier construction can be changed without prior notification.
Please, visit our web store to purchase the introduced products.