a100 The a100 is the most affordable integrated stereo amplifier in the Opera Audio product line. There are almost no other competitors at or near its price. The solid-state amplifier has a simple design, is easy to use, and delivers pleasing sound with tube-like lucidity. Control Functions: Volume, Select, Power On/Off Inputs: 1, 2 and 3 Output: Left, Right Specifications: Output Power: 80W x2 Bandwidth at - 1dB (80W): 2Hz to 100kHz Input Sensitivity for Rated Output: 440mv Harmonic distortion + N: <0.02%(50W RMS, 1kHz) Signal / noise: 90dB Input interfaces: 3 groups (RCA) Output interfaces: 1 group (RCA) Input Impedance: 47k Consumption: 50W Dimension: 430(L) x 336(W) x 72(H) mm Weigh: 12kg(Net); 12.5kg(Shipping)
		a100plus a100plus has the same circuit of a100 but without volume. The a100 and a100plus can be used as Bi-amping. CONTROL FUNCTIONS: Power On/Off POWER OUTPUT: 80 watt x 2, RMS 1kHz POWER REQUIREMENTS: 220 VAC TOTAL HARMONIC DISTORTION: less than 0.05%(20watt, 1kHz) FREQUENCY RESPONSE: (-1dB points at 50 watt) 2Hz-100kHz INPUT SENSITIVITY: 0.44V INPUT IMPEDANCE: 100k ohms OUTPUT IMPEDANCE: 8 ohms SIGNAL/NOISE: 90dB INPUT INTERFACES: 1 groups (RCA) DIMENSIONS: 430(L) x 320(W) x 70(H) mm WEIGHT: 12kg
		b2000X As our ahead of schedule production realization of solid-state amps using IC originally designed exclusively by Opera audio, the b2000x might be the best solid-state integrated stereo amplifier ever offered by Opera audio. This remarkable unit includes a well-improved, 100-watt per channel, push-pull Class AB power amplifier and a real built-in IC preamplifier stage. CONTROL FUNCTIONS: Volume, Select, Power On/Off POWER OUTPUT: 100 watt x 2( 8ohm), 160 wattx2( 4ohm ) RMS 1kHz TOTAL HARMONIC DISTORTION: less than 0.05%(20watt, 1kHz) FREQUENCY RESPONSE: (-1dB points at 50 watt) 2Hz-80kHz INPUT SENSITIVITY ( 2 ,3,4): 0.3V INPUT SENSITIVITY (1): phono stage INPUT IMPEDANCE: 47k ohms SIGNAL/NOISE: 90dB INPUT INTERFACES: 4 groups (RCA) DIMENSIONS: 430(L) x 320(W) x 70(H) mm WEIGHT: 14kg

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