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Conrad Johnson LP66S Power Amplifier (Pre Owned)
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Conrad Johnson LP66S Power Amplifier (Pre Owned)Conrad Johnson LP66S Power Amplifier (Pre Owned)Conrad Johnson LP66S Power Amplifier (Pre Owned)Conrad Johnson LP66S Power Amplifier (Pre Owned)

Conrad Johnson LP66S Power Amplifier (Pre Owned)

If you are looking for a smooth presentation across the range with no hint of harshness have a listen to this Power Amplifier, from one of the best Tube Amplifier Manufacturers.

£1,699.00    
£1,415.83 Exc. VAT |  
  

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Conrad Johnson LP66S Power Amplifier (Pre Owned)

Good Condition, Original Packaging, Manual. 

Some small paint chips around where Valve Cage fits, No Bias adjustment Screwdriver

Amplifier Bias has been set and the amp has been on soak test for two days

Consistent with conrad-johnson’s design philosophy that circuits should be kept as simple as possible, the LP66S works its magic with just seven vacuum tubes. A composite triode input stage is direct coupled to a cathode-coupled phase inverter – the same improved wide-bandwidth driver stage found in our other, more costly LP amplifiers. The output stage is comprised of a pair of 6550s (each channel) operated in ultralinear configuration for an optimal combination of high power and low distortion. Limited negative feedback is applied to the circuit to reduce distortion and provide a sufficiently high damping factor to control most real-world speaker systems. Discrete dc power supply regulators are provided for the input and inverter stages, in order to isolate each stage from the output signal.

As with all conrad-johnson tube amplifiers, the LP66S requires no complicated adjustments or specialized equipment to main­tain. To assure continued peak performance, the owner need only make a simple bias adjustment when new tubes are installed. Built in LED bias indicators allow the user to make this adjust­ment using only the supplied screwdriver.

Component parts quality is a signature strength of any conrad-johnson product.

Audio circuit and related power supplies feature precision metal film resistors and high-performance polypropylene capacitors. There are no electrolytic capacitors in the audio circuits or in the related power supplies. Proprietary wide-bandwidth output transformers contribute to excellent high frequency performance. Even the input/output connectors and internal wiring have been carefully selected for optimal sonic performance.

Conservatively rated at 60 watts per channel, the LP66S offers sufficient power for most applications.

Users who have not previously experienced the dynamic range and lifelike timbre of tubed components will find the LP66S an ideal introduction to the joys of modern tubed amplifiers. Along with its tonal integrity, its ease of use, low maintenance costs, and reliability will be a revelation for those who have only experienced “entry-level” tube gear. For veteran audiophiles, its modest price and size make it a great choice for bringing conrad-johnson quality to a “second” system. A word of warning if you are in this last group: whether in the den, library, or bedroom, the LP66S’ wide bandwidth and low distortion will give your main system a run for the money.

Specifications:

  • Power: LP66S – 60 watts per channel from 30 Hz to 15 KHz at no more than 1.5 % THD or IMD, both channels driven into 4 ohms (also available connected for 8 or 16 ohm loads)
  • Sensitivity: 0.5 V to rated power
  • Frequency Response (at 10 watts): 20 Hz to 20 kHz, +/- .25 dB
  • Hum and Noise: 102 dB below rated power
  • Input Impedance: 100 kOhms
  • Tube Complement: 3 x 6922 | 4 x 6550

Mechanical:

  • Dimensions: 19W | 6.375H | 16D inches
  • Weight: 45 lbs.

 

Specifications:

  • Power: LP66S – 60 watts per channel from 30 Hz to 15 KHz at no more than 1.5 % THD or IMD, both channels driven into 4 ohms (also available connected for 8 or 16 ohm loads)
  • Sensitivity: 0.5 V to rated power
  • Frequency Response (at 10 watts): 20 Hz to 20 kHz, +/- .25 dB
  • Hum and Noise: 102 dB below rated power
  • Input Impedance: 100 kOhms
  • Tube Complement: 3 x 6922 | 4 x 6550

Mechanical:

  • Dimensions: 19W | 6.375H | 16D inches
  • Weight: 45 lbs.

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