MK 2225

Remote Controlled Stereophonic 2 x 25 W in pure class “A” Integrated Amplifier, designed with solid-state technology and totally dual-mono, with polarization in pure class "A". SHC (System Harmonic Control) circuitry.

Totally dual-mono solid state amplifier

MK 2225 is totally dual-mono amplifier designed with solid-state technology and polarization in pure class “A”. Power structure has been realized with the help of two toroidal power transformers at 220 VA each and a filtering system total of 240,000 UF, this includes the use of three selected pairs of MOSFET from about 20 Ah per channel.

This configuration is obtained by utilizing a low value of output resistance and a high availability of current, providing remarkable control in the way the articulation
and the relative content of information within the same spectrum.

The sound is very similar to that of amplifiers with vacuum tube technology, obtaining great consistency across the entire sound spectrum and highlighting the significant potential for analysis of micro-and macro- detail of the musical content. Innovative new driver sin pure class”A” gives a great increased quality, control and harmonic richness.

Other Benefits

The preamplifier section and management inputs is achieved with the aid of technology proprietary. In other words, the amplification stage of low level is obtained with discrete components (Transistor and FET) with polarization in pure class.
In addition, the output stage is constructed with two transformer amplifiers with a 1:1 ratio with the core “C” and a bandwidth of 10Hz to 100KHz + – 0.5 db;
The volume control system is also quite sophisticated, with the ability to memorize the previous state and mute all inputs.

MK 2225 has a rear switch with the task of feeding the whole machine and ensure the right operating temperature. It is recommended to wait at least 30 minutes before listening to music. Considering that this is a Class A device, is only right to ensure the right operating temperature of the individual power stages, so as not to sacrifice the quality, and not meet expectations.

The last point concerns the placement in the same environment. It is important to ensure good ventilation on the whole surface of the amplifier, because the internal temperature on same heat sinks as part of the power stage has an optimal operating temperature of 60° C. If the temperature were to exceed this, the thermal protection would come into operation, unhooking the entire power system for the purpose of protecting the amplifier and any speakers that might be connected to it.

In conclusion, the significance of the interconnectivity of the individual assets must not be overlooked. The wiring is made from silver-plated copper provided by Wireworld
a master in the world of hi-end electrical connections.

This is a magnificent system for ensuring quality connections for both signals and power. The contacts that bind this system are treated with Rhodium to ensure
the preservation of synergy and quality musical content.

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    Technical Specifications


    Rms Power On:
    8 Ohm 2x 25 W Classe A / 4 Ohm 2x 38 W Classe A / 2 Ohm 2x 40 W (current limited)
    Peak output current:
    60 Ah
    Frequency Response:
    da 10Hz a 60 Khz +- 0,5db
    Harmonic Distortion at max power:
    THD 1,6 %
    Signal to noise ratio S/N :
    Sensitivity for max. Power:
    600 mV 25 KOhm RCA
    Sensitivity for max. Power:
    400 mV 50 KOhm XLR
    Dimensions (WxDxH) mm.:
    26 Kg


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