Cayin Announces Jazz 70 Tube Amplifier

All Image Credit: Cayin

The Chinese company Cayin has announced the Jazz 70 integrated tube power amplifier that offers; push-pull amplification with switchable Triode and Ultralinear modes and Bluetooth connectivity. The new Jazz 70 sits below the Jazz 80, Jazz 90 and Jazz 100, giving Cayin a more accessible entry point into a range. This new design employs four matched EL34 output valves in a Class AB1 push-pull configuration while three 12AU7/ECC82 valves handle preamplification. Available with a black or silver front panel for; £1,400, $1,399.00 or €1,598.00.

Enclosed in a removable metal cage, the design uses point-to-point wiring, a hand-wound low-leakage toroidal power transformer and wide-bandwidth EI output transformers, with separate 4-ohm and 8-ohm speaker terminals provided at the rear. Switching between Class AB1 Ultralinear 35wpc and Triode 17wpc is accomplished using a top plate switch. Biasing is manual with each output tube getting its own trim pot, and two backlit meters on the front act as bias indicators during setup and VU meters during playback.

The only digital input is Bluetooth 5.1 that is built around built around Qualcomm’s QCC5125 chipset and an ESS ES9018K2M DAC. Codec support includes LDAC, aptX HD, aptX Low Latency, aptX, AAC and SBC. There is no other digital I/O and no phono support, but it does come with a remote control.

Rear panel connectivity includes; 3 x stereo RCA line level input, 1 x stereo speaker binding posts -4Ω/8Ω, 1 x Bluetooth AE. Front panel supports the 16 ohms to 300 ohms  headphone output. 

Features At A Glance:

• Tube integrated amplifier with classic EL34 push-pull circuitry.
• Preamplifier with 3 × 12AU7 / ECC82.
• Power amplifier with 4 × matched EL34 tubes in Class AB1 push-pull.
• Selectable operating modes: Triode and Ultralinear.
• 17 W + 17 W in triode mode.
• 35W + 35W in Ultralinear mode.
• Handcrafted toroidal transformer with low magnetic leakage.
• EI output transformer with wide frequency response.
• Bluetooth 5.1 with Qualcomm QCC5125.
• ESS ES9018K2M DAC for high-quality wireless playback.
• Supports LDAC, aptX HD, aptX LL, aptX, AAC, MP3 and SBC.
• Dual instruments for display, bias adjustment and bias monitoring.
• Headphone output for private listening.
• Remote control included.
• Handcrafted construction with point-to-point wiring.
• Removable metal protective cover for the tubes.

Specifications:

• Device type: EL34 tube integrated amplifier 
• Preamp tubes: 3 × 12AU7 / ECC82 
• Power tubes: 4 × EL34 
• Circuit: Class AB1 Push-Pull 
• Operating modes: Triode, Ultralinear 
• Output power: 17W + 17W RMS (Triode), 35W + 35W RMS (Ultralinear) 
• Frequency response: 8 Hz – 60 KHz (-3 dB) 
• Total harmonic distortion: 0.2% at 1 W / 1 KHz; less than 5% at rated power 
• Signal-to-noise ratio: 100 dB, A-weighted 
• Input sensitivity: 380 mV 
• Input impedance: 100 KOhm 
• Inputs: LINE 1, LINE 2, LINE 3, Bluetooth 
• Speaker outputs: 4 ohms, 8 ohms 
• Headphone output: 16 ohms to 300 ohms 
• Bluetooth version: 5.1 
• Bluetooth chipset: Qualcomm QCC5125 
• DAC: ESS ES9018K2M 
• Supported Bluetooth formats: LDAC, aptX HD, aptX LL, aptX, AAC, MP3, SBC 
• Dimensions: 300 × 338 × 190 mm 
• Weight: 15.6 kg 
• Power consumption: max. 240 W