Cayin HA-300 User Manual

HA-300

DIRECT HEATED TRIODE TUBE HEADPHONE AMPLIFIER

User Manual

Thank you for choosing Cayin HA-300 Direct Heated Triode Tube Headphone Amplifier

Table of Content ……………………………………………………………………………

Package Contents …………………………………….……………………………………

Product Features …………………………………………………………………………...

Safety Precautions …………………………………………………………………………

Specifications ……………………………………………………………………………….

Daily Care …………………………………………………………………………………...

Warranty Service …………………………………………………………………………...

Preparation ………………………………………………………………………………….

Front Panel Functional Description ……………………………………………………….

Rear Panel Functional Description ……………………………………………………….

Top Panel Functional Description ………………………………………………………...

Installation …………………………………………………………………………………...

Vacuum Tube Substitution ………………………………………………………………...

Connect to Audio Equipment ……………………………………………………………...

Connect to Headphones …………………………………………………………………...

Connect to Speakers ……………………………………………………………………….

Basic Operation …………………………………………………………………………….

Maintenance ………………………………………………………………………………...

Troubleshooting …………………………………………………………………………….

We have inserted protective foam inside the Vacuum Tube Cage in order to protect the vacuum tubes during transportation. Please remove these foams before you connect the amplifier into your sound system. Fail to do so might cause serious damage to the amplifier or disaster such as fire accident.

We have prepared this user manual to help you understand the features and get familiar with the operation of the amplifier. We suggest all customers read through this manual before they start to use the device.

Table of Content

Recommendation

Please keep all packaging materials for future use as you may need to repackage the amplifier in the future. Please fill in the product warranty card immediately and mail it to authorized dealer to safeguard your after-sales service.

Note: Please make sure the AC voltage of your local power supply match the

voltage information printed on the back panel before you power up the amplifier. Incorrect input voltage setting will cause damage to the machine or might even lead to serious household accident. Cayin reserves the right to refuse service or responsibility on related instances. If the marked voltage is different from your local power supply voltage, please contact your authorized dealer or Zhuhai Spark Electronic Equipment Co., Ltd.

Attention: the product package should include only the items in the list above.

Notice

This amplifier is designed, optimized and manufactured by factory designated components. Cayin reserves the right to void the warranty of the product in case of unauthorized repair, modification or change to the product, and we shall not responsible to any failure or damage caused by replacement of non-designated components.

_Package Contents_

Please place the box in upright position according to the marking of the package. Please examine the product package before you open it, the package should be free from any physical damage or water stain. You should find the following items when you open the package:

1. Cayin HA-300 x1

2. Product User Manual (Chinese) x1

3. Warranty Card x1

4. AC Power Cord x1

5. Umbilical Power cable x1

6. Replacement Fuse x2

_Product Features_

1. Single-ended amplification approach brings out the charm of the tubes with natural and realistic music playback.

2. Voltage Amplification: one piece of Shuguang WE6SN7 (replica of Western Electric) per channel

3. Power Amplification: one piece of Full Music gold pins ceramic base 300B per channel

4. Support Balanced (XLR) and single-ended (RCA) input. To maintain single-ended amplification, balanced input will transform to single-ended through a pair of input transformer.

5. The output from 300B will feed into a pair of custom design in-house manufactured high quality EI output transformer for single-ended (6.35mm) or balanced (4-pins XLR) headphone output.

6. To make sure HA-300 can handle vast variety of headphones satisfactory, the output transformers are designed to support three sets of impedance matched output (L, M and H).

7. Powerful headphone output, can handle demanding low sensitivity current hungry planar headphone with ease..

8. Excellent vacuum tube shock absorber implementation provides quiet and realistic playback from sensitive headphones

9. One set of speaker terminal as alternative output, can be used as an integrated speaker amplifier with 8W+8W Class A output

10. Outboard power supply provides pure and steady power for the amplification circuit with minimum interference from power transformer

11. Custom design in-house manufactured high quality toroidal power transformer

12. High voltage power rectification with set of four NOS RCA 22DE4 tubes

13. Exotic multi-stage dedicated power supply approach, reduce interference to signal amplification effectively through independently regulated power supply for voltage amplification circuit. Optimize power provision to all circuit and enhance audio performance significantly

14. Effective design with sensible layout and effective shielding and isolation, the corner stone for excellent overall performance.

15. Handmade, point-to-point wielding on all circuit,

16. High-Precision 24 steps potentiometer

17. MUNDORF MCap RELY SilverGold premium grade coupling capacitor

18. High quality shielded silver-plated cable for internal wiring, minimize interference during internal transmission.

19. Detachable vacuum tube shielding cage, easy to detach and install

WARNING

High Voltage Components

Do not open the cabinet

 To avoid electrical shock, please do not remove the cover or back

panel

 All repair can only be carried out by qualified technician for repair  To avoid fire or electrical shock, please keep away from water spill

or moisture environment

WARNING

High Voltage Components

Do not open the cabinet

This symbol warns the users that uninsulated voltage within the unit may be sufficient to cause electrical shock. It is dangerous to make any kind of contact with any part inside the unit.

WARNING

High Voltage Components

Do not open the cabinet

This symbol alerts the users that important information concerning the operation and maintenance of this unit has been provided. The information should be read carefully to avoid problems.

We recommend customers to use this amplifier under 2000 meters above sea level and non-tropical climate environment

Safety Precautions_

1. Unplug the power cord if you are not going to use the amplifier for an extended period of time, and keep the machine in proper condition

2. Tube amplifier will built-up it operation temperature after long hours of operation. Please keep the amplifier at a well-ventilated environment and do not cover the amplifier or blocked the vents. Poor ventilation will lead to excessively high operation temperature and can cause malfunction or fire

3. To avoid damaging the amplifier, you must connect a source device to the input terminals before you select that as the active input of your HA-300.

4. To avoid damaging the amplifier, short circuit among the output terminals are strictly forbidden.

5. Do not attempt to service this product yourself. Opening the cover may expose you to electric shock or other hazards.

6. Do not attempt to disassemble the machine. Cayin reserves the right to void the warranty of the product in case of unauthorized repair, modification or change to the product. All service and maintenance must be conducted by authorized service technician.

7. The amplifier must be keep away from water dripping or water splitting, do not place any objects filled with liquids such as vases or some others on the top or around the amplifier.

8. Please disconnect power cable before you attempt to clean the machine. Please use soft clean cloth to wipe clean the chassis, do not use volatile solution or corrosive to clean product.

9. Please handle with care, avoid tempering to the machine

_Specifications_

Rated Output (Balanced)

1800mW+1800mW(L), 2200mW+2200mW(M), 3700mW+3700mW(H)

Rated Output (Single Ended)

1100mW+1100mW(L), 2400mW+2400mW(M), 5000mW+5000mW(H)

Frequency Range

10Hz～50kHz ±3dB

TH+D

1%(1kHz)

Sensitivity

200mV ~ 440mV

S/N Ratio

100dB (A-weighted)

Headphone Impedance

L : 8~64Ω; M : 65~250Ω; H : 251~600Ω

Headphone Connectors

4pin XLR x1, 6.35mm x1

Rated Output

8W + 8W Class A

Frequency Range

10Hz~60kHz ±3dB

TH+D

1%(1kHz)

S/N Ratio

100dB (A-weighted)

Input Sensitivity

440mV

Output Impedance

4~8Ω

Input Impedance

100kΩ

Input Connector

XLR, RCA

Tubes used

300B x 2, 6SN7x2, 22DE4×4

Dimension

Amplifier: 286mm×368mm×210mm; Power Supply: 286mm×368mm×210mm

Weight

Amplifier: 20Kg; Power Supply: 9.5Kg

Fuse

~220V-240V: T1.6AL250V; ~100V-120V: T3.15AL250V

Power Consumption

185W

Working Condition

Temp: 0oC~40oC; Humidity: 20% - 80%

Storage Condition

Temp: -20oC~70oC; Humidity: 20% - 90%

Headphone output

Speaker Output

Others

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