JUSON JTA35 Hybrid Integrated Tube Amplifier User Manual

JUSON JTA35 Hybrid Integrated Tube Amplifier

Thank you for purchasing the Juson Audio JTA35 Hybrid Stereo Tube Amplifier. The tube preamp stage imparts a warm, natural sound quality while the solid state power amp offers superb audio fidelity and efficiency. Multiple input options including USB media playback are available, and Bluetooth 5.0 provides refined wireless streaming from your mobile devices.

Features

• 35W per channel RMS into each channel at a 4 ohm load
• Audiophile quality sound with less than 2% THD @ 35W
• Bluetooth 5.0 wireless connectivity
• RCA mono subwoofer output
• Brushed aluminum housing lends a clean, modern look
• Short circuit protection circuitry

Front Panel:

1. Power

2. Infrared Receiver

3. VU Meter

4. Volume Control

5. 6.35mm Headphone output

6. Phono Button

7. Aux Button

8. BT Button

9. Optical Button

10. Coaxial Button

11. PC-USB Button
    Rear Panel:

12. BT Antena

13. Phono input

14. Speaker outputs

15. 110V/220V power switch

16. Optical input

17. PC-USB input

18. Subwoofer output

19. Coaxial input

20. Aux input

21. AC power input

Remote Control

1. MUTE
2. When muted, the JTA35 will display —- on it’s screen.
3. VOLUME +/-
4. Control the volume of the amplifier. The volume knob will rotate to indicate the current level of the amplifier.
5. TRACK TRANSPORT CONTROLS
6. Control the playback of the Bluetooth input.
7. “play/pause logo” – start/pause the current song.
8. “forward logo” – skip forward to the next song.
9. “backward logo” skip backward to the beginning of the current song or the previous song.
10. INPUT SELECTION
11. Directly select any of the inputs here.
12. NOTE: PC-USB is only selectable when a device is connected to the USB port on the rear of the unit.

Front Panel

Rear Panel

Typical Connection

Troubleshooting

make sure both ends of the power cable are  connected properly.
Incorrect voltage selection switch setting| Verify that the voltage selection switch is set according the region and power standard in your country.
Protection circuit has been activated| Turn the amplifier off and check that your speaker wires are not shorting out. If this problem persists please contact Audio for customer support.
The unit turns off suddenly| There is a short in the connected speaker wire.| Examine the speaker wire for any damage. Do not use any cable that has exposed wire.
Speaker malfunctioning| Disconnect the speakers one at a time to see if the issue is caused by the speakers or the amplifier. If the problem persists with all speakers please contact Juson Audio customer support.
No sound| Correct input has not been selected| Verify that the correct input is selected.
Headphones are connected| Unplug the headphones from the front panel. Audio should resume in the connected speakers.
Incorrect cable connections| Double check that the device that you are trying to listen to is connected to the correct input.
Low volume| Volume on the playback device is turned down| Verify that any volume control on your phone, computer, or connected playback device is turned up.
The sound output lacks bass| The speakers polarity is reversed| Double check the speaker connections, ensuring that the + and – terminals are connected properly on both speakers.
The bass knob is turned down| Ensure that the “BASS” control knob is not turned down all the way.
There is a “humming sound”| No ground connection from the amplifier to the turntable| Make sure that the GND connection is made between the turntable and the amplifier.
The turntable is distorted| The turntable is set to line output but is connected to the PHONO input

The phono connection is improperly grounded

| Verify that if your turntable is using a line out signal that it is connected to the AUX input on the amplifier. If the turntable is outputting a phono signal verify that it is connected to the PHONO input.

Make sure that there is a connection between the grounding terminals on the amplifier and the turntable.

Important Tips: Why Can’t Tube Amplifier Work?
Most of reasons are the tube amplifier might suffer some crashes during the transportation. Please check if the tubes are in perfect condition and make sure the tubes already inserted tightly.

Specifications

Power Output:………………………………. 35 watts RMS x 2 into 4 ohms
Total Harmonic Distortion: ……………. 2% @ 35W per channel
Minimum Speaker Impedance: ………. 4 ohm
Frequency Response: …………………… 20-20,000 Hz, ±2 dB
Channel Separation:……………………… 72dB
Signal to Noise Ratio: …………………… >80 dB
Media Playback File Support: ………… FLAC, WAV, APE, WMA, MP3
Digital Audio DAC SNR: ………………… 96 dB
Headphone Power Output:…………. 15mW
Digital Audio DAC Sample Rate: ………. 16-biU48kHz
PC-USB Sample Rate:………………… 32bit/192kHz
Preamplifier Tube: ……………………….. 13P1P2+6P16A2
Transistors: ………………………………….. Toshiba A1941 x 2, Toshiba C5198 x 2
Bluetooth Version: ………………………… 5.0
Input Impedance: ………………………….. 47k ohms (minimum)
Input Sensitivity:…………………………… 650 mV
Switching Voltage: ………………………… 110V/220V
Dimensions: ………………………………… 7.2″ H x 12.4″ Wx 7.2″ D
Weight: ……………………………………….. 10.4 Ibs

Important Safety Instructions

To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside. Refer servicing to qualified personnel. To reduce the risk of fire and shock do not expose unit to rain or moisture. The unit should be connected to an earth grounded AC electrical socket. The unit should be operated in a well ventilated area. Minimum clearance is 2 inches from the ventilation openings.

FCC Statement

1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
   (a) This device may not cause harmful interference.
   (b) This device must accept any interference received, including interference that may cause undesired operation.

2. FCC Radiation Exposure Statement: Mobile device.
   This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. In order to avoid the possibility of exceeding the FCC radio frequency exposure limits, human proximity to the antenna shall not be less than 20cm (8 inches) during normal operation.

Customer Support

For any support, please contact
juson-cn.com
Tel: +86 755 8971 7080
support@juson-cn.com
We are at your service at all times.

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