Cayin Jazz 90
The Cayin Jazz 90 combines silky resolution, explosive dynamics and unusually deep staging with tube-amplifier versatility. HIFI.DE highlights its balanced control across a broad range of speakers, while triode mode brings an organic glow to vocals and strings. A capable MM phono stage, Bluetooth and impressive headphone output make this a seriously complete valve integrated.
WATT RECOMMENDS
Save your favorites. Compare them anytime.
Create a free HiFi Hub account to save products to your Wishlist and compare your favorites side by side.
Deliciously Crispy
Sound Quality
94/100
Build Quality
94/100
Features Connectivity
85/100
Value for Money
85/100
Pros
Silky, finely detailed and well-balanced sound with powerful dynamics and notable soundstage depth.
Triode mode adds an organic, sonorous presentation that particularly flatters vocals and strings.
Unusually flexible for a tube amplifier, with strong performance from its MM phono input, Bluetooth receiver and headphone output.
Handles a wide variety of loudspeakers with less fuss than many valve designs.
Cons
Heavy, runs hot and consumes substantial power, so it needs sturdy furniture and generous ventilation.
WATT RECOMMENDS
Save your favorites. Compare them anytime.
Create a free HiFi Hub account to save products to your Wishlist and compare your favorites side by side.
What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 94/100
The Jazz 90 is described as a highly resolved, balanced and powerful tube amplifier with unusually broad speaker compatibility. Its particular strengths are its forceful dynamic expression, deep and room-filling staging, and the more organic vocal and string presentation available in triode mode.
Transparency Resolution
93/100
HIFI.DE describes the presentation as silky and finely detailed, with high resolution rather than the softened or hazy sound sometimes associated with tube amplification. The review also calls the overall performance top-class, while retaining an easy, non-diva-like character with speakers.
Tonal Balance Musicality
94/100
The amplifier is said to sound very balanced, sonorous and powerful. Triode mode is singled out for an even more organic and enticing presentation, particularly with voices and strings.
Dynamics
96/100
Dynamics are a major strength: the review repeatedly calls them powerful and reports exceptionally strong impact with demanding sludge-metal material. Its oversized output transformers are credited with a subjectively greater sense of power, helping the Jazz 90 sound unusually forceful for a valve design.
Soundstage Imaging
94/100
HIFI.DE finds that the Cayin has a notable advantage in soundstage depth over the compared Line Magnetic amplifier. Recordings are said to extend more convincingly into the listening room, making the divide between the recorded space and the room feel less distinct.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
94/100
HIFI.DE calls the build quality flawless and also notes the amplifier's extra-stable design. The substantial output-transformer implementation supports the impression of a carefully engineered, physically serious valve amplifier.
Features Connectivity
85/100
For a tube integrated amplifier, the Jazz 90 is unusually accommodating: it includes an MM phono stage, Bluetooth, a subwoofer output and a headphone output. The review praises both the phono stage and Bluetooth performance, and calls the headphone output very good sounding.
Value for Money
85/100
At approximately $2,449 to $2,998, the Jazz 90 sits in a substantial but established premium valve-amplifier bracket. The review strongly praises its performance and equipment, but does not directly assess whether it represents especially strong value against similarly priced competitors.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
Online Reviews & Mentions
Forum Mentions
No forum mentions found yet
Specifications
- Power Output
- 28W + 28W (Triode) 50W + 50W (Ultralinear)
- THD
- 0.2% (1W, 1kHz)
- Frequency Response
- 9Hz–45kHz (±3dB, UL)
- Signal-to-Noise Ratio
- 100dB (Line) 68dB (Phono MM)
- Input Sensitivity
- 300mV (Line) 3mV (Phono MM)
- Input Impedance
- 100kΩ (Line) 47kΩ (Phono)
- RIAA Error
- ≤ ±0.25dB
- Headphone Output
- 85mW @ 32Ω
- Dimensions (W × D × H)
- 420mm × 379mm × 215mm
- Net Weight
- 27.5kg
- Max Power Consumption
- 310W
Manufacturer's Description — Cayin
Cayin Jazz 90
Vacuum Tube Integrated Amplifier
The Cayin Jazz 90 is a meticulously handcrafted vacuum tube integrated amplifier, designed for music lovers who demand soulful analog sound and modern-day versatility.
With its selectable operation modes (TR/UL), user-selectable KT88/EL34 power tube setup and in-house manufactured upgraded toroidal transformer, the Jazz 90 embodies the spirit of tube rolling and acoustic personalization—paying homage to classic tube design while embracing audiophile flexibility and reliability.
Tube Configuration
At the core of the Jazz 90 lies:
Input Stage: 2 × 12AX7 / ECC83
Driver Stage: 2 × 6SN7
Power Stage: 4 × KT88 (switchable to EL34)
These tubes are configured in a Class AB push-pull design, offering excellent drive and dynamic capabilities across a broad range of music genres. Users can also select between Triode and Ultralinear operating modes via a rear panel switch:
Triode Mode: Rich, fluid midrange with natural harmonics—perfect for vocals.
Ultralinear Mode: Powerful and controlled, delivering increased headroom and energy for orchestral and electronic material.
External bias adjustment and tube selection switches allow for easy tube rolling and fine-adjustment.
Bias Monitoring Indicator (BMI) & Protection
To ensure long-term performance and reliability, the Jazz 90 is equipped with a Bias Monitoring Indicator (BMI) system. It continuously monitors power tube status, and activates protection in case of abnormal current. If triggered, the amp will safely shut down, protecting both the tubes and circuitry.
Bias adjustment is made intuitive with dedicated front-panel meters and top-mounted selectors for each power tube. This guarantees that bias levels remain within optimal range at all times.
Bluetooth Connectivity
Incorporating modern convenience, the Jazz 90 features Bluetooth 5.1 with a Qualcomm QCC5125 chipset and ESS ES9018K2M DAC—supporting high-resolution codecs including LDAC, aptX HD, aptX LL, AAC, and more.
Full Remote Control
The Jazz 90 comes with a full-function infrared remote that offers convenient control of volume, mute, and input selection—ensuring a relaxed and immersive listening experience.
Inputs & Outputs
Inputs
1 × PHONO (MM)
2 × LINE (RCA)
1 × Bluetooth
Outputs
Speaker terminals (4Ω, 8Ω)
1 × Subwoofer Out (Full Frequency)
1 × Headphone Jack (6.35mm)
Construction & Design
Point-to-point hand wiring
Upgraded toroidal power transformer, in-house developed
Dual-function analog meters for output monitoring and bias adjustment
Removable tube cage
Elegant chassis with a minimalist yet vintage aesthetic
Memory function to recall the last settings
Verified Dealers
Online Dealers
All Dealers
Zoom out the map to see more dealers
Authorized dealers for Cayin Jazz 90
- A Tube High Fidelity — online and in-store — Almere, Flevoland, Netherlands (website)
- A1 Futureshop — online and in-store — North Rocks, New South Wales, Australia (website)
- Addicted to Audio — online and in-store — Epping, Victoria, Australia (website)
- Advanced MP3 Players — online and in-store — Musselburgh, Scotland, United Kingdom (website)
- AES — in-store — Mitte, Hessen, Germany (website)
- Apos Audio — online and in-store — Oakland, California, United States (website)
- ARK Audio — online and in-store — Borensberg, Östergötlands län, Sweden (website)
- Art & Voice — online (website)
- Art et son — online and in-store — Montréal, Québec, Canada (website)
- Audeos — online and in-store — Żywiec, Województwo śląskie (website)
and 67 more verified dealers