The power amplifier of the J Series meet the most stringent regiments of tough touring applications. they are protected against high Temperature, overload, shorted outputs, radio frequency interference and and DC faults. The power transistors are protected from back EMF damage by means of an additional protective circuit. For the so called safe start the power outputs are switched on delayed via relays. As current limiter circuit prevents the mains fuss from beeing blown. Maximum precision is also guaranteed as regards mechanical construction and finish. the robust steel chassis featured remarkable torsion resistance and is particularly designed to cope with the tough wear and rear associated with going on tour in the rock & roll business. Thermal stability is guaranteed by several low noise 3 stage fans which means that the amplifiers can be used inside the studio. Comparator circuits constantly monitor the power amplifier input and out put signal and control and the control the internal limiters in case of non-lenear operating conditions. They protect the loudspeakers from over load due to clipping the amplifier. The power amplifier feature excellent transmission proper these power amplifier technology also makers for extremely low distortion rates. Distortion factor (THD). Inter modulation distortion(AMPTE-IM) and transient Inter modulation distortion ( DIM30 and DIM 100 are so low that they defect able with the most sophisticated measuring equipments. Generously dimensioned power supplies with low leakage toroidal core transformers provide consider able head room well above the nominal ratings. V/I fold back limiter circuit were deliberately not included in the power amplifiers to facilitates operation at complex loads up to a phase angle of +/- 90 . The inputs are electronically balanced on XLR connection ( Isolation transformers can be retrofitted. Direct outs in the form of XLR connectors made to display chain the signal are also standard features. The Modes DUAL/Stereo or PARALLEL / MONO can be selected via the input routing switch furthermore the power amplifier can also be operated in ‘ Mono Bridged Mode. The front panel accommodate the db calibrated input gain controls which are designed as particularly precise and safe to operate detentedpotentio meters. The LED display provides information about the power amplifier operating status. For the two channels they indicates the readiness to operate whether there is a signal at the input or out put . then the limiters have been activated and where the one of the proactive circuits has been triggered . The power out put channel A channel B and Bridged out are available on speaker connector. The real panel also accommodated the ON / OFF switches for the integrated Hi and Low cut Filters a ground did lift switch which seperate’s the chassis from the circuits ground thus helping to prevent hum loops and the operating mode selector for mono bridged operatations . All the power amplifier can be used in normal applications on loads as 2 ohms and in bridged mode down to a minium of 4 ohms . They also features extremely quite fans with front ot rear airflow/ Facilitating opertaion in large and narrow amplifier racks. The owners manual is meant to help you familiarise yourself with all J series .Other features please read it through carefully and we will guarantees that new power amplifier of the J Series from us will give you great pleasures.
