Copland - CTA 506 Tube main amplifier

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Matthew McIvor
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Estimate  € 3,700 - € 4,100
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Copland CTA 506 stereo valve power amplifier, manufactured in 2011, in excellent condition and fully tested, delivering 90 W per channel, includes one connecting cable and weighs about 30 kg.

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Description from the seller

Copland CTA 506 – Vacuum Tube Stereo Power Amplifier

Magnificent Copland CTA 506 power amplifier, in excellent condition and fully functional.

A reference model from the renowned Danish brand Copland, the CTA 506 combines high-level construction with a powerful Ultra-Linear push-pull output section, using four KT120 tubes. It is capable of delivering 90 W per channel, offering high dynamics, great control capability, and detailed, natural musical reproduction.

This unit is equipped with a set of high-quality valves:

• 4 x Tung-Sol KT120 – power tubes
• 2 x Tung-Sol 6550 – regulation
• 4 x Electro-Harmonix 12BH7
• 2 x Tung-Sol 12AT7

The use of Tung-Sol and Electro-Harmonix tubes gives this unit a particularly interesting setup for the high-fidelity audio enthusiast.

The CTA 506 uses a push-pull Ultra-Linear configuration and features high-quality output transformers, allowing for excellent dynamics, extension, and control. The rated power remains 90 W per channel, with speaker outputs for 4, 8 and 16 ohms.

The amplifier presents itself in excellent cosmetic condition, with a very well-kept appearance. It is fully functional and tested, with both channels operating correctly.

Technical specifications:

Brand: Copland
Model: CTA 506
Type: Vacuum tube stereo power amplifier
Configuration: Push-Pull Ultra-Linear
Output power: 2 x 90 W
Speaker impedance: 4 / 8 / 16 ohms
Power tubes: 4 x KT120
Additional tubes: 2 x 6550, 4 x 12BH7, 2 x ECC81/12AT7
Total harmonic distortion: less than 1%
Frequency response: 5 Hz – 100 kHz (-3 dB)
Input sensitivity: 1.5 V
Input impedance: 100 kΩ
Global negative feedback: 17 dB
Signal-to-noise ratio: greater than 100 dB (IHF-A)
Output polarity: non-inverting
Maximum power consumption: 600 W
Dimensions: 430 x 190 x 390 mm
Weight: approximately 26 kg

The Copland CTA 506 was released in 2011 and is one of the brand’s most recognized tube power amplifiers, distinguished by its KT120 usage and the high power available for an amplifier in this category.

A highly valuable item for collectors, tube enthusiasts, and audiophile-grade high-fidelity systems.

Will be carefully packed for safe shipping.

Copland CTA 506 – Vacuum Tube Stereo Power Amplifier

Magnificent Copland CTA 506 power amplifier, in excellent condition and fully functional.

A reference model from the renowned Danish brand Copland, the CTA 506 combines high-level construction with a powerful Ultra-Linear push-pull output section, using four KT120 tubes. It is capable of delivering 90 W per channel, offering high dynamics, great control capability, and detailed, natural musical reproduction.

This unit is equipped with a set of high-quality valves:

• 4 x Tung-Sol KT120 – power tubes
• 2 x Tung-Sol 6550 – regulation
• 4 x Electro-Harmonix 12BH7
• 2 x Tung-Sol 12AT7

The use of Tung-Sol and Electro-Harmonix tubes gives this unit a particularly interesting setup for the high-fidelity audio enthusiast.

The CTA 506 uses a push-pull Ultra-Linear configuration and features high-quality output transformers, allowing for excellent dynamics, extension, and control. The rated power remains 90 W per channel, with speaker outputs for 4, 8 and 16 ohms.

The amplifier presents itself in excellent cosmetic condition, with a very well-kept appearance. It is fully functional and tested, with both channels operating correctly.

Technical specifications:

Brand: Copland
Model: CTA 506
Type: Vacuum tube stereo power amplifier
Configuration: Push-Pull Ultra-Linear
Output power: 2 x 90 W
Speaker impedance: 4 / 8 / 16 ohms
Power tubes: 4 x KT120
Additional tubes: 2 x 6550, 4 x 12BH7, 2 x ECC81/12AT7
Total harmonic distortion: less than 1%
Frequency response: 5 Hz – 100 kHz (-3 dB)
Input sensitivity: 1.5 V
Input impedance: 100 kΩ
Global negative feedback: 17 dB
Signal-to-noise ratio: greater than 100 dB (IHF-A)
Output polarity: non-inverting
Maximum power consumption: 600 W
Dimensions: 430 x 190 x 390 mm
Weight: approximately 26 kg

The Copland CTA 506 was released in 2011 and is one of the brand’s most recognized tube power amplifiers, distinguished by its KT120 usage and the high power available for an amplifier in this category.

A highly valuable item for collectors, tube enthusiasts, and audiophile-grade high-fidelity systems.

Will be carefully packed for safe shipping.

Details

Era
After 2000
Brand
Copland
Model
CTA 506
Multiple models
No
Physical condition
Excellent
Number of objects
1
Includes
Power cord
Weight
30 kg
Functional condition
Tested and working/playable
Sold by
PortugalVerified
73
Objects sold
100%
Private

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