Amplifiers / Power Amplifier

HALCRO Eclipse mono NUOVO

Power Power output into 4 ohms resistive > 500 W Power output into 8 ohms resistive > 280 W (Measured at 1kHz) Distortion (Footnote 1) At full power output, all harmonic distortion orders: THD <-120 dB (<300 parts per billion) up to 20 kHz (100 kHz B.W.) at 450 W into 4 ohms. THD @ 1 kHz <-134 dB (<200 parts per billion). For sum of 19 and 20 kHz tones, each delivering 112.5 W into 4 ohms = peak power 450W, resulting intermodulation products each <-120 dB relative to output. SMPTE-IM intermodulation products each <-120 dB relative to output. Inputs There are four input modes: an unbalanced voltage mode input with an impedance of 22 kOhms a balanced voltage mode input with an impedance of 22 kOhms + 22 kOhms a current-mode input with a 60 Ohm input impedance (infinite impedance current source) a minimal path voltage mode with an input impedance of 660 Ohms The voltage gain of the balanced and unbalanced inputs is 30 V/V and for the minimal path mode is 15 V/V. The gain of the current mode is 9 V/mA Noise The equivalent input noise at the input is 5 nV/sqrt(Hz) for the voltage modes and 6 pA/sqrt(Hz) for the current mode. Frequency Response 3Hz – 215kHz: -3db 7Hz – 90kHz: -1dB (Measured at 1W output) Slew rate limit Maximum slew rate for both small signal and maximum output voltage is 100V/μs (which is equivalent to a maximum output voltage at approximately 250 kHz). Power supply active power factor correction minimizes mains current harmonic distortion operates at all voltages from 85 to 270 V r.m.s. 45-65 Hz, without any internal or external switches less than 100 parts per million mains hum and ripple on the amplifier power rails conforms with PFC and EU emission standards set for 2002 Overload (Footnote 2) Recovery from hard overload at 20 kHz into 4 ohms is 1 ms. Protection The amplifier protection: is short-circuit proof has over current limiting has gradual power limiting if amplifier becomes too hot will cut out if a continuous D.C. offset appears on output will cut out if output current exceeds 12A average continuously over a period of a few minutes is protected against most input overloads The power supply protection: will cut out if most common faults are detected in the power supply (such as over-voltage, master clock at incorrect frequency, excessive temperatures) is protected against most mains transients Components (Footnote 3) For reliability, all semiconductors are at least industrial grade in both the power supply and amplifier. All electrolytics are rated to 105°C in both the amplifier and power supply. only highly linear resistors and MKP10/ FKP1 capacitors are employed in the critical audio path six-layer PCBs are used in the power amplifier to minimize stray magnetic fields and to accurately define voltages four-layer PCBs are used in the power supply to minimize E.M.I. and voltage transients, which improves reliability and power efficiency Compartments There are four heavily shielded compartments: a power supply unit an input amplifier section a power amplifier compartment an output filter compartment Filtering Series and common mode EMI filtering is present: on the mains input between the amplifier and power supply High frequency filtering is present at the inputs and output. Dimensions (per monoblock) Weight, 135 lb or 62 kg Height, 31 in or 79 cm Width, 16 in or 40 cm Depth, 16 in or 40 cm Shipping weight, (one pair including pallet) 400 lb or 180 kg Footnotes THD specifications of our typical best competitors are, 200,000 parts per billion. Indicates no excessive negative feedback. “Industrial” grade is a higher grade than the “commercial” grade used by most manufacturers.