Search query: 300b tube amplifier

Product: Sonos Amp - The Versatile Amplifier for Powering All Your Entertainment - Black
Brand: Sonos
Color: Black
Relevance: Irrelevant
The versatile amplifier for powering all your entertainment.
Connect everything from your turntable and stereo to your wired speakers to enjoy vinyl, CDs, stored audio files, and streaming. You can even power outdoor speakers and expand your Sonos system to the backyard.
Enjoy stereo sound for shows, movies, and video games when you connect Amp to your speakers and TV. Wirelessly add a pair of Sonos One surrounds for immersive home theater.
The rack-mountable design features a specially developed heatsink for optimized airflow and heat management
Get brilliant sound without compromising space or design with Sonos Architectural by Sonance, a collection of in-ceiling, in-wall, and outdoor speakers optimized for Amp.

Product: Reisong - A20 Hi-Fi Intergrated Amplifier KT88 Tube Single-end Class A 4ND VU Meter
Brand: Reisong
Relevance: Substitute
You should take about 30-100h time to operate the amp.RUN-IN to the amp gives it's best and stable sound.so during the first 100h use time the sound maybe is not the best,you can also use your own run-in method.
Specifications:
Output Power: 8W * 2 (Ultra-linear connection)
Frequency response: 20Hz-35KHz
Output Impedance: 4,8Ω
Total harmonic distortion: ≤ 1% (1kHz)
Input Sensitivity: 750MV
Input impedance: 100KΩ (three sets of input signal)
Voltage amplification: Dawn 6J8PJ × 2.
Power output tube: KT88 × 2.
Rectifier tube: 5Z3PA-T × 1
Dimensions (W×D×H): 366×300 (including knob) × 185mm
SNR: 89dB
Weight: about 16.5 kg (114 power transformers, export version)
Gross weight: 18kg
Power Supply Voltage: AC 110V-120V/50Hz-60Hz(For United States）

Features:
With power tube current monitoring circuit, tube replacement upgrade ease.
Medical grade 5Z3PA-T rectification.
Imported 0.35 core output amplifier audio dedicated core, core stack thickness 86-50, A20 flux of 13,000
Output transformer potting techniques, ensure that the output of the amplifier stability and reliability
Double chassis design，not easy deformed.
Output amplifier with a new imported 0.35 core manufacturing, high-purity copper wire package enameled, layered segmentation, string and connection method
Imported 0.35 thick core manufacturing power amplifiers
Output amplifier with high-grade stretch amplifier housing cover.
Power Transformers: new imported 0.35, stack thickness 60MM (114-60).
Output amplifier core: core 0.35 new imported thick high silicon (86-50).
Japanese production of ALPS potentiometer.
Chassis: mirror stainless steel chassis.
KT88-98 power output.
6J8P-J pre-voltage amplification.
The new power amplifier 0.35 cores do to ensure stable power supply.
Output power, maximum output power of 8W+8W.
Output amplifier uses no big loop feedback technology to ensure high sound reduction, powerful