Cayin CS-6PH Tube Phono Pre-Amplifier

Cayin CS-6PH Tube Phono Pre-Amplifier

Tube phono stage—for vinyl fans

For demanding vinyl fans, Cayin developed the CS-6PH tube phono preamplifier, which offers two phono inputs for high-quality MM and MC pickups.

This allows the connection of multi-arm turntables with two different pickups or two turntables, each using an MM or MC system. The inputs can be selected on the solid aluminium front panel.

Selected tubes

In the CS-6PH, two 6922 from Electro Harmonix are responsible for the MC gain, and two ECC83 from JJ Electronics are used for the MM gain with high-precision RIAA equalisation.

Two 12AT7s take over the output stage. Two RCA 22DE4 tubes are used for voltage rectification and to minimise residual ripple.

Custom Reinforcement

A three-position LOW/MED/HIGH gain switch is located on the front of the Cayin CS-6PH, available in black or silver.

Here, the gain can be increased from 40 dB to 57 dB, 61 dB, or 65 dB.

Typically the 40dB setting is for moving magnet cartridges, and the 57dB, 61dB and 65dB gain settings are for moving coil cartridges. 

Adjustable Input Impedance and Capacitance

From the factory, the CS-6PH is set to 40 dB and 47 kohm/47 pF for MM.

With the CAP switch on the front panel, users can set the input capacitance of MM to 47 pF or 100 pF.

The input impedance of MC can be adjusted to the needs of each pickup with the impedance selector switch:

The resistance values are 47 ohms, 100 ohms, 200 ohms, 470 ohms, and 1000 ohms.

A low-pass filter, which prevents high cone excursions caused by low frequencies as a result of warped records, can be activated via the rumble switch.

Versatile outputs

The Cayin CS-6PH offers both a balanced and an unbalanced analogue output to which a variety of amplifiers can be connected. 

Complex power supply

With over 25 years of experience designing tube amps, Cayin has always designed its own transformers.For the CS-6PH, the designers have designed an EI power transformer for the power supply.

In conjunction with a low-noise voltage regulation, the CS-6PH guarantees a pure, low-noise and stable amplification.

Handcrafted Precision

Each CS-6PH phono preamp is hand-assembled at Cayin by highly skilled technicians.A final multi-stage quality and listening test not only checks every function but also ensures that the sound corresponds to the reference standard.

High-quality components

The Cayin CS-6PH uses audio-quality capacitors and carbon film resistors, a large EI transformer for the power supply, ceramic tube bases, and high-end relays.

Easy handling

All setting options of the CS-6PH can be made using switches on the front to allow the customer easy operation and selection.

The Cayin CS-6PH remembers the last settings after switching off. When the device is switched on, it takes over this again.

One sure thing

To safely operate the amp, Cayin implemented a soft-start circuit.

After the 60-second warm-up period, the CS-6PH operates in a stable and optimal state. A visually attractive, easy-to-install tube cover is included.

Technical Specifications

Output Voltage
MM Input: 200 mV (20 mV Max.)
MC Input: 200 mV (20 mV Max.)

Amplification Factor
MM Input: 40 dB
MC Input: 57 dB, 61 dB, 65 dB

Total Harmonic Distortion (THD)
MM Input: 0.05% (1 kHz)
MC Input: 0.1% (1 kHz)

Signal-to-Noise Ratio (A-Weighting)
MM Input: 85 dB
MC Input: 70 dB

Input Impedance
MM Input: 47 kΩ
MC Input: 47, 100, 200, 470, 1000 Ω

Input Sensitivity (RMS)
MM Input: 2.5 mV (200 mV, 1 kHz)
MC Input: 0.12 mV ~ 0.25 mV (200 mV, 1 kHz)

Input Capacity
MM Input: 47 pF, 100 pF
MC Input: 56 pF

Tube Assembly
2 x 6922
2 x 12AX7
2 x 12AT7
2 x RCA22DE4

Inputs
MM Input: 1 x RCA
MC Input: 1 x RCAMM 

Outputs
1 x RCA
1 x XLR

Output Impedance
200 Ω RCA (Unbalanced)
600 Ω XLR (Balanced)

Available Finishes
Silver
Black

Max. Input
62 W

Dimensions (W x D x H)
360 x 309.5 x 177 mm

Weight
11.5 kg

*This information has been obtained from the manufacturer's website. We advise that features, specifications & price are subject to change without notice.

E&OE