Product Description
JD 10
Tube Phono Amplifier
Introduction to the Characteristics of Products
- Aluminum plate chassis structure is stable, strengthen the ability to suppress the effect of vacuum tube microphone, the appearance of calm atmosphere, pearl gray color is elegant and noble, aluminum alloy oxidation treatment durable, side power switch and double ground pile design, simple, bright and delicate cleaning.
- There are three groups of pickups for selection, which are suitable for MM (moving magnetic pickup), MCH (high output moving coil pickup) and MCL (low output moving coil pickup), and provide four resistance values and four capacitance values for selection, suitable for a variety of pickups for free combination.
- With medical grade power filter, interference suppression performance is guaranteed with low leakage current; Fully shielded cables between the inner plates, high performance anti-interference magnetic ring, excellent EMI (electromagnetic compatibility) design, to suppress and reduce various electromagnetic interference; Annular power transformers with Permalloy shielding provide pure and abundant energy, eliminate external power interference, low ripple, low noise and high stability.
- The high order four-layer pcb board design is adopted inside the machine, and the signal-to-noise ratio of the JD10 is pushed to a new height through the anti-electromagnetic interference shielding with EMI filter loop routing process and the application of a full set of high-grade rhodium-plated non-magnetized input and output RCA connector.
- Huge power supply "energy storage pool", slow start, low internal resistance, high stability of high voltage power supply, using 4 low internal resistance, large dynamic 6922 tube (two per channel) for full symmetric full balance amplification, no feedback design. At the same time, it has the characteristics of good balance, high analysis power, sound permeability, large dynamic, low output internal resistance, and strong driving ability. The machine frequency response reaches 10Hz-100 KHz, (+/ -0.4dB).
- JD10 uses high-precision RIAA equalization circuit with DC servo circuit, excellent circuit design and all high-performance and high-quality chip devices. Low offset, low noise, low distortion, high-precision op amp and high-precision, low-loss CR component selection ensure RIAA calibration 20Hz~20kHz full band gain deviation of less than 0.1db, so as to obtain excellent sound field and image positioning effect.
- Panel knobs for easy selection of head matching resistors/matching capacitors, and amber leds indicate soft, elegant colors. The high quality relay switch matches the resistance and capacitance to ensure that the input small signal is pure and high fidelity, and is not polluted by the mechanical switch contact.
Performance characteristics:
The JD10 tube singing and playing sound is full and warm, the high frequency is soft and elegant, the middle frequency is clear, the low frequency is well controlled and the response is fast, and the overall balance is natural. The music expression has a strong sense of picture and introduction, which is the mark of JD10 different from all other singing and playing.
Full symmetric full balance ultra wideband multimode phono amplifier, the defender of vinyl analog sound!
TECHNICAL SPECIFICATIONS
Stylus Input Signal: MM/MCH/MCL
Phono Stage:
RCA: MM: 5mV 3Vrms ≥74dB
MCH：0.5mV 0.8Vrms ≥55dB
MCL: 0.1mV 0.26Vrms ≥42dB
XLR： MM：5mV 6Vrms ≥77dB
MCH: 0.5mV 1.6Vrms ≥58dB
MCL：0.1mV 0.52Vrms ≥45dB
Maximum Undistorted Output： 27.5Vrms
Frequency Response: 10Hz to 100 KHz, (+/- 0.4dB)
SNR：≥74dB （A Weighting：80dB)
Dynamic Range： ≥90dB
Distortion THD： 0.12% @ 1kHz @ Rated Output Level
Output Impedance： ＜100 ohms
Sound Channel： Stereo/Mono
Equal Reduction Curve： RIAA
RIAA Accuracy of Equalization： ±0.1dB 20Hz-100KHz 1KHz 0db
Tube Complement： 4Pcs.6922
Power ： 220-230VAC/100-115VAC 50/60Hz
Total Power Consumption： 40W
Weight： 19.8lbs, 33lbs.Boxed
Product Size： 16.9 inches (43cm) wide by 13.4 inches (34cm) deep by 4 inches (10.5cm) high
Package Size： 23 in.(58cm.W)×19 in.(48cm.D)×9 in.(23cm.H)
Warranty : One years parts and labor, Six months on tubes
