Hello my dear friend：
Due to the high storage/transportation costs of sending and returning products,please DO NOT choose "Return & Refund" casually unless absolutely necessary.Multiple returns will be blacklisted by the system and will result in the inability to shop on AliExpress in the future,make sure you need it,then make the order.We guarantee to provide complete pre/after-sales service,just contact us if you have any doubt or need help. Thank you for your understanding!

▶ Differnece bewteen Oldchen EL34 and Oldchen EL34 Plus: EL34 is QCC3007 Bluetooth chip and without Dac chip,support AAC/SBC/APTX. EL34 Plus is QCC5125 chip + ESS9018K2M Dac chip,support SBC/AAC/APTX/APTX-LL/APTX-HD/LDAC(96KHz/24Bit),significant improvement in sound quality when using Bluetooth connection.Tips: ESS9018K2M Dac chip only working on Bluetooth input, not working on RCA input.If you need a tube amplifier with bluetooth function,Oldchen EL34 Plus maybe the best choice.

About us:
▶ Laochen or Oldchen is the pioneer of Chinese famous affordable tube amplifiers.It has been developing continuously for more than ten years since 2005.It has always adhered to the concept of simplicity,soundness,and cost-effectiveness.It has gradually introduced a variety of classic models to make more and more music Fans have their own tube amplifier.
▶ Every product we launch is an original product with careful design, during which we have collected countless improvements and suggestions from enthusiasts. We never add some eye-catching functions, but focus on the sound quality of the tube amplifier, the internal craftsmanship, and the neat wiring. It not only reflects the attitude and skills, but also reflects the performance and quality of the amplifier.
▶ The working voltage of the tube amplifier is more than 300 volts, which is ten times or twenty times that of ordinary transistor power amplifiers. , one after another old song makes people never get tired of listening to it. It can perform well with the full-range speaker vocals and strings specially customized by our store. It can also have a good effect in business places such as coffee shops that need background music. This EL34 amplifier is completely rectified and filtered according to the traditional circuit, and the fixed components of the scaffolding are carefully wired and welded.

Please NOTE:
▶ The temperature of the tubes are very high when working, please avoid touching and scalding.Please check it if you need the tube cover: https://www.aliexpress.com/item/1005002892271847.html
▶ All tubes are original and new,it has been tested and matched well before leaving the factory.
▶ Make sure to connect speakers first before power on the amplifier.
▶ Most of the local noise floor is between 0.5 mV and 1 mV. Due to the characteristics of the tube amplifier, it is normal to hear a weak current sound close to the speakers.
▶ Usually the sound of the tube amplifier became better warm and sweet after 30-200 hours warm-up.
▶ The sound source of EL34 tube amplifier is a CD or a decoder. The speakers can be pushed well by bookshelves or floor boxes with a sensitivity of about 100W or above of 88dB. It is enough for families to enjoy vocal strings. If you like symphonic music with low frequency and high dynamics, or if the speaker power is relatively high and the sensitivity is low, you can choose our KT88 tube amplifier with higher power: https://www.aliexpress.com/item/1005002933083403.html

Parameters:
▶ Rectify Tube: 1 * PSVANE 5U4G
▶ Power Tubes: 2 * PSVANE EL34
▶ Preamp Tubes: 2 * PSVANE 6SN7GT
▶ Bluetooth: 5.1,Qualcomm QCC5125,support SBC/AAC/APTX/APTX-LL/APTX-HD/LDAC(96KHz/24Bit)
▶ DAC Chip: ESS9018K2M,Only working on Bluetooth input, not working on RCA input.
▶ Frequency: 20Hz-25KHz
▶ Total Power: 105W
▶ Output Power: 10W
▶ Total Harmonic Distortion: 1%(1kHz)
▶ Input Sensitivity: 500mV-2000mV
▶ Input Impedance: 100kΩ
▶ Output Impedance: 4-8Ω
▶ SNR: 88dB
▶ Suit Speakers: mono about 100W,sensitivity above 88dB
▶ Size: 370*210*230mm
▶ Power: 220V 50-60Hz
▶ Weight: about 11Kg

Package:
▶ 1 * Oldchen EL34 Plus Tube Amplifier
▶ 5 * PSVANE Tubes
▶ 1 * AC Power Cable
▶ 1 * Bluetooth Antenna
▶ 1 * Certificate
▶ 1 * User Manual

Oldchen EL34 Spare Tubes and Tube Cover:(Click on the image to view and purchase)