Amplificador COPLAND CTA405

Condição MINT - Como novo!

Revisto pelo Eng. Valeriy Kuchkovskyy (Audolici) em julho de 2023 com a instalação de um quarteto novo das válvulas de potência (Electro Harmonix 6550EH).

Entretanto mudei de colunas e este amplificador tem potência a mais para fazer um bom casamento com as colunas que tenho.

https://www.absolutesounds.com/pdf/main/press/Copland%20CTA405%20HFC01106forweb.pdf

CTA405 Integrated amplifier
Production start: 2005 / Ended: 2019

The CTA405 is an integrated valve amplifier with five line-level inputs, including a tape monitor loop, and a built in RIAA phono circuit accommodating moving magnet and high output moving coil cartridges. Rated at 50 watts per channel using the legendary 6550 beam power tubes in ultra linier configuration excellent performance is obtained with low global feedback. A complete line stage similar to the one found in the Copland CTA305 pre-amplifier is installed directly behind the input terminals, providing a low output impedance buffer between the amplifier interconnect cables and the level control prior to the power amplifier section.

CTA405 tube complement:
3 pc. ECC83 / 12AX7
2 pc. 6922
2 pc. 12BH7
4 pc. 6550 or KT88

CTA405 Features:
11 Vacuum tube design
Magnet Phono RIAA Preamplifier
Inputs : Six
Tape Outputs :One
Record Monitor
All 1% Precision Film Resistors
All Polypropylene film capacitors
Shielded Power Transformer Toroidal-Core
Ext. 12V remote power on/off trigger
IR Remote Control
Motor Driven Volume Control

CTA405 Specifications:
Tubes: 6550 x 4 / 12BH7 x 2 / ECC83 x 3 / 6922 x 2
Power output: 50W / channel at 4 / 8 ohms
THD.: Less than 1 % at all levels
Frequency response: 10 Hz to 100 kHz - 3 dB
Input sensitivity Line: 0,35 V for rated power
Input sensitivity RIAA: 3,5 mV for rated power
Input impedance Line: 33K ohms
Overall negative feedback: 17 dB
Output taps: 8 ohms, 4 ohms.
S/N ratio ( IHF-A ) More than 95 dB
Output polarity: Inverting
Power consumption: 250W
Nominal mains voltage: 115V or 230V
Factory set for destination country only.
Mains voltage range: +/- 12 %
Dimensions (mm.) 430 (W) 185 (H) 390 (D)
Wight: 25 kg.