Oldchen KT88 K1 Pure Class A Tube Amplifier Manual Fever PSVANE Tube Bluetooth 5.0 HIFI Audio Speaker Amplifier

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.

Pls NOTE:
▶ The tube protective cover is included in the package.
▶ Make sure to connect speaker first before power on the amp.
▶ Usually the sound of the tube amp became better warm and sweet after 30 hour warm-up.
▶ All tubes are original and new,it has been tested and matched well before leaving the factory.The tubes have the same life span as bulbs and belong to consumables.The preamp tube is guaranteed for 3 months,and the power tube and rectifier tube are guaranteed for 1 year,you can get the new tube free of charge if there's problem in the warranty.

Parameters:
▶ Preamp Tubes: 2*6H8C
▶ Power Tubes: 2*PSVANE KT88
▶ Rectify Tube: 1*PSVANE 5U4G
▶ Bluetooth: 5.0,QCC3007/QCC3008,support Aptx
▶ Frequency: 20Hz-25KHz
▶ Output Power: 15W*2
▶ THD: ＜1%(1kHz)
▶ Input Sensitivity: 500mV-2000mV
▶ Input Impedance: 100kΩ
▶ Output Impedance: 4-8Ω
▶ SNR: 88dB
▶ Size: 370*240*180mm
▶ AC Power: 110V/220V/240V
▶ Weight: about 20Kg

Features:
▶ Solicited suggestions from countless fans,and made great improvements in appearance and circuit.After more than a year of research and development and testing,the brand-new KT88-K1 is finally available.The new K1 will inherit the bright mid-range and high-pitched treble of the previous tube amplifier.The transparent features have greatly improved the looseness and thrust of the low frequency,and it is a more cost-effective product.
▶ K1 is still the traditional craft of purely manual scaffolding wiring and welding.The circuit draws on the advantages of domestic and foreign classic circuits.The 5U4G line of filament rectifier CLC inductance filter,6H8C promotes KT88,the power supply adopts a new imported 0.35 chip 105*60,and the output adopts a new Imported Z11 film 86*50, no distortion output power 15W, easy to deal with bookshelves or floor boxes. The scaffolding strips are mainly connected with Teflon silver-plated wire through the machine, using imported fever-level components such as imported fever capacitors, metal film resistors, and ALPS potentiometers.
▶ K1 adopts 1.5mm thick steel plate electrostatic spraying overall chassis,8mm oxidized brushed aluminum panel and solid frosted aluminum knob.It has 2 input and output 4 ohms and 8 ohms two sets of pure copper crystal terminals.The net weight of the machine is 16 kg.19.5 kg after layer packaging.

Package:
▶ 1 * KT88-K1 Tube Amplifier
▶ 1 * AC Power Cable
▶ 1 * Tube Protective Cover