Cayin CS-300A SET Integrated Valve Amplifier

Cayin's new CS-300A integrated amplifier with single-ended tube design is equipped with two direct-heated 300B output tubes, 8 watts of RMS per channel and various technical features that are supposed to turn it into a puristic highlight for tube fans.

The Cayin CS-300A tube integrated amplifier has 300B output tubes, whose sound is highly valued, as its basis. The two directly heated triodes are powered in a single-ended configuration by a 6SL7 voltage amplifier stage with a downstream 6SN7 driver stage. Two GZ34 tubes are responsible for the channel-separated high-voltage rectification. Despite puristic single-ended circuitry, the Cayin CS-300A achieves 8 watts RMS per channel.

The pre-in input also offers the option to use the Cayin CS-300A as a pure power amplifier. Different taps for 4, 8 and 16 ohms allow for adjusting to the speakers in use.

An output transformer specially designed for this single-ended amplifier with separate winding taps for the headphone output additionally makes the CS-300A ready for operation with headphones.

An integrated measuring instrument for bias adjustment of the 300B tubes and a two-stage switch for individual adjustment of the negative feedback are also built into the amp.

The Cayin CS-300A is hand-built with point-to-point wiring. A soft-start circuit to protect the amplifier is said to provide longer life for the tubes as well as other sensitive components.

In addition, Cayin uses high-voltage fuses to protect the remaining components in the event of a tube failure.

All functions can be controlled via the included remote control, which comes in a metal housing.

Features

8 W class A single ended design
2 x 300B, 2 x 6SL7, 2 x GZ34, 2 x 6SN7 tubes
All handmade silver point to point wiring
Pre-in terminals
On-board bias meter for easy adjustments
Negative Feedback adjustments
Silver finish
Remote control
Designed and tuned in Germany
Dimensions (W x H x D): 420 x 195 x 382 mm
Weight: 26 kg

Specifications


Power Output: 8 W x 2
Tubes: 2 x 300B, 2 x 6SL7, 2 x GZ34, 2 x 6SN7
Frequency Response: 10 Hz ~ 32 kHz (-3 dB)
S/N Ratio: 86 dB
THD: 1% (1 kHz)
Output Impedance: 4, 8, 16
Input Sensitivity: 280 mV (Integrated) / 1000 mV (Pre-In)
Input Impedance: 100 Kiloohm
Input Terminals: Line 1, Line 2, Line 3, Pre-In
Power Consumption:
Dimensions (W x H x D): 420 x 195 mm x 382 mm
Weight: 26 kg.Variant: Default Title