Conrad Johnson Classic Sixty / SE verzija

Planet Audio
Planet Audio
The new Classic Sixty SE amplifier has once again demonstrated the conrad-johnson design team’s commitment to adapting the advances from our state-of-the-art pursuits to more affordable offerings accessible to a wider range of music lovers. Borrowing heavily on the technology of its big brother, the ART amplifier, the Classic Sixty SEpreserves the distinctive tonal character of individual instruments and voices, with each clearly located within the overall acoustical environment of the original recording. Musical transients are reproduced with realistic impact, but without artificial enhancement. Like its more costly siblings, the Classic Sixty SE captures the emotional impact of the live event, never getting between the listener and the musical performance.There really is no mystery to the basis for outstanding musical performance: best results come from simple circuits executed with quality parts. The Classic Sixty SE amplifier circuit design is about as simple as possible, employing just seven vacuum-tubes. Single-ended triode voltage gain and inverter stages are coupled to an output stage comprised of a single pair of ultra-linear operated KT120 tubes for each channel. As it is critically important that the DC voltage supplied to the gain stages be absolutely rock-solid stable, these voltages are provided by simple but highly effective discrete voltage regulators. And speaking of simple, maintenance of the Classic Sixty SEcould hardly be easier: the owner need only make a simple bias adjustment using the built in bias indicators when installing fresh output tubes.The use of premium quality component parts is the other half of our underlying design mandate. In this area as well, the Classic Sixty SE is a leader in its class.  Ultra high-performance metal foil resistors in strategic locations and precision, metal-film resistors elsewhere yield low noise performance for greatest clarity. Teflon CJD inter-stage coupling capacitors, along with polypropylene and polystyrene capacitors specified for both the audio circuits and the regulated plate voltage supplies assure a high degree of temporal accuracy. The result is an exceptional range of dynamics – reproducing both subtle variations in level as well as dramatic loud crescendos. Our proprietary trans-spectral wide-bandwidth output transformers contribute importantly to the extended, “airy” highs that help distinguish the Classic Sixty SE from ordinary tubed amplifiers.

Power:
60 watts per channel from 30 Hz to 15 KHz at no more than 1.5 % THD, both channels driven into 4 ohms (also available connected for 8 or 16 ohm loads)
Sensitivity:
LP66S – 0.7 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: 1 x 6189,  2 x 6922, 4 x KT120

Dimensions: 16D x 19W x 6.38H inches
Weight: 20 kg