Previo Copland CTA-305
Preamplificador estereo a válvulas (4 x E83CC). Entrada de giradiscos y 5 entradas de línea. Mando a distancia.
For low level voltage amplification, valves are in a league of their own with respect to linearity and musicality. For nearly a decade, COPLAND has contributed to the refinement of amplification using these classic devices. The CTA 305 employs reliable E83CC valves selected after ageing to assure optimal compability. Each class A line level amplifier circuit is divided into two separated non inverting units. This allows us to use a much less complex circuit, with increased stability, and no requirement for internal compensating networks. Discrete DC power supply regulates designed for nearly zero output impedance isolate individual gain stages from each other. In addition to the five sets of line-level inputs, the CTA 305 offers a high quality phono level amplifier. For the listener with a large investment in LP's, this amplifier provides an opportunity to recover musical pleasures and more nuances from irreplaceable recordings. SPECIFICATIONS Vacuum tubes 12AX7 / ECC83 (4) Output voltage Rated 2V. max 40V T.H.D. Phono - less than 0,1% (output 1V) CD. line - less than 0,02% (output 1V) Input sensitivity Phono - 2,0mV (output 1V) CD. line - 300mV (output 1V) Input impedance Phono - 47 K ohms CD. line - 50 K ohms Out impedance Less than 600 ohms S/N ratio ( IHF-A curve ) Phono - more than 80 dB CD. line - more than 95 dB Power consumption 40W Nominal mains voltage 115V or 230V factory set for destination country only Mains voltage range +/- 12% Dimensions 430 (W) 86 (H) 390 (D) mm. Weight 7 kg.