Raphaelite CK300 300B Tube Split Headset Amplifier HIFI EXQUIS Balanced Single-Ended Phono lamp Preamplifier

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CK300 is a single-ended high-power headphone amplifier designed by Raphaelite with a direct heat pipe 300B as the power tube. The design is positioned for high-end headphone use, from the design to the materials used to achieve the best sound quality effect as the goal.

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The price is for both power block and amplifier block


CK300 is a single-ended high-power split headphone amplifier designed by Raphaelite with a direct heat pipe 300B as the power tube. The design is positioned for high-end headphone use, from the design to the materials used to achieve the best sound quality effect as the goal.

  • Product name: 300B headphone amplifier
  • Model: CK300
  • Electronic tube: 300B*2, 6N1P*2, 5Z3P*1
  • Rated power: 4.5W
  • Distortion degree: ≤2%
  • Frequency response: 8HZ-30KHZ 2dB@2.5W
  • HD≤1% (32Ω/120Ω/300Ω/600Ω)
  • Input impedance: 100KΩ
  • Output impedance: 32Ω/120Ω/300Ω/600Ω
  • Signal to noise ratio S/N: 90db
  • Input sensitivity: 160mV
  • Input voltage: 220-240V
  • Power consumption: 130W
  • Size: 408mmx250mmx210m
  • Power part net weight: 10.9kg
  • Net weight of enlarged part: 11.6kg
  • Packages weight: about 26kg for both parts


  • The​ both balanced and 6.3mm Jack output's impedances be adjustable by potentiometer between 32-120-300-600ohm

  • F​ull coulped output transformer make best combinaison with 300B tube, without use coulping capacitors, give a best orignal sound

  • Long​ research for the amplifiers design, give a vintage but modish look,  high quality print

  • Separate power supply section give a best noise isolation from power part

  • Tubes used damping system

  • Offer a phono output to connect your vinyl player

  • Fully dote preamplification RCA and Balanced output, offer a ture preamplification system




The electron tube regulated split power supply has a moderate start function, making low noise possible; with multiple headphone impedance output and achieve a consistent output frequency response and consistent sound quality performance under multiple impedances. To achieve this function, it took two years to develop this complex structure of the completely coupled transformer, which is the core of the 300B headphone amplifier.

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Standard output four impedance selection and the use of relay switching, impedance essentially covers most of the headphone impedance use. This machine split bile voltage regulator and electronic tube damping system, housing shielding structure, so that noise control to late night listening can ignore the interference of noise.

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This machine has unbalanced and balanced dual input options, and the output ports have been increased to three, making it easy to use in different applications. This machine follows the classic style of the Rafale gallows, the appearance of antique and elegant. The production of this machine is believed to get more discerning headphone enthusiasts praise. It will also be the best match for high-end headphones.

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Conditions of Selling
Article-1, HIFI EXQUIS make in first for service quality since 10 years, Our team and me are always here , you are not purchasing via automate machie, but via us: real person,  so thank u very much for choosing & trusting us. Our customer service is ready to help u,  U can contact us any time by inside messager or by Email: contact AT  or hifi.exquis AT
Article-2, Before Buying
Please read cearfuly the below conditions, because validate the order by customer is equivalent to accept the selling conditions.
Please read cearfuly the product page.  If you don't sure, contact us before buying.(HIFI EXQUIS)
Article-3, Shipping.  In term of delivery: We need time to prepare the order and arrange the sent of products and dealing with china local shipping. After the International warehouse delivery, we will provide u a tracking number in 3~6 days for the international shipping.  Shipping delay, please contact us for resolve this problem (HIFI EXQUIS)
Article-4, Taxe & Duties: We are not responsible for any Taxe, Duties or Customs fees, These charges are the buyer's responsibility. In general we declare a value - than real price.  Any problem about the clerance process, Please contact us before contacting with customs.(HIFI EXQUIS)
Article-5, Delivery.  (Damaged, wrong product, sound is bad, no tracking information, package lost, apparence problem, shipping delay, etc)Any problem or dissatisfaction after received product,  you must contact us in first before to give a negatif feedback or open a dispute.You can open dispute only when we can't give your a satisfied solution!
Article-6. Feedback is extremely important. If you are satisfied, please leave 4-5 stars positive feedback.  Else you must contact us to resolve the problem with us.(HIFI EXQUIS)
Article-7, After Selling,  Guarentee 1 year for all product, excepte some product have different guarenty time, please find the details in the product page.  We have 3 after selling service points( China, France, Canada, and Russia in the future) . Therefore, the maintenance care of the products under warranty is convenient. (HIFI EXQUIS).
Article-8, We have not responsability of any small update of inside of product if the changing is not give any impact for the product quality.  and nor for same small change on exterior of product, like remove or add some print words, change some holes on chassis, but the product is the same.  So picture is not contractual .
Company Information
HIFI EXQUIS is a High Fidelity e-commerce store, we offer the exquisite equipement of Hi-Fi system and with both good quality and service.  All our equipement are configured to fit with different countries and electric norms, and guaranteed you a risk free purchase and 100% satisfied.
Our store is property of <Shenzhen XinHuoBan trade Ltd>  Registed in ShenZhen china, for product store and shipping service;
We co-work with French company: <Neopote > Registed in France for Europe pre-sale and After-sales services
Have a good shopping!

Tube Amplifier Precautions

1. Tube amp must connected with speakers before turning ON. Strictly prohibit send signals to amp without connected loads(speakers) or load short circuit when the switch is ON. 

2. Too high or too low power supply voltage does irreversible harm to the amp,preferably less than 5% of the specified voltage. If your mains voltage exceeds this value, often best to use with the AC power supply.

3. Temperature is higher when tube amps working, placing attention to ventilation, cooling. 

4. In the boot or just shut down for a period of time (within 30 minutes) Do not spill liquid on the tubes.

5.  You should take about 100h time to operate the amp.RUN-IN to the amp gives it's best and stable during the first 100h use time the sound maybe is not the best,you can also use your own run-in method. 

6. If you donot sure how to plug the tubes, please contact us before try it

Speakers connection

All tube amplifier used with stereo mode:  L(left) and R(right) speakers.
Normally there are 6 speaker cable connectors: +8L, +4L, -0L, -0R, +4R, +8R 

Example: +8L and -0L are for connecting with your Left 6-8ohms speaker 
-0R, +4R is for 
connecting with your Right 4ohms speaker 


Tube amplifier guaranty :

Tube amplifier Guarantee:  6 months for tubes sold with amplifier, 1 year for the amplifier and PSVANE tube

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