Shuguang Audio SG-300B Classic Version Tube Amplifier Single-Ended Hifi Tube Amp Boasts Good Sound

Shuguang Audio SG-300B Classic Version Tube Amplifier Single-Ended Hifi Tube Amp Boasts Good Sound

Version Comparison:
SG-300B Classic Version: (300BG*2,6SN7GT*2, 12AX7B*2, 5U4G*1)
SG-300B Deluxe Version: (300B-Z*2, CV181-Z*2, 12AX7-TA*2, WE274*1)
SG-300B Super Deluxe Version: (WE300B*2, 6SN7-T*2, 12AX7-TA*2, WE274*1)

Description:
1. Advantages in sound quality: Seven tubes are used. High-power rectifier tube is used, mainly to improve sound quality, increase driving force, high power, strong sound field control (sound will not diverge), obvious analysis power, and strong mid-frequency and high-frequency penetration. The dynamic is big, the sense of hierarchy is strong.
2. Newly produced tubes are used.
3. The transformer core is a Japanese Z11 silicon steel sheet. The material used for the transformer is very important. Good material can ensure the sound quality, especially this SG-300B has a sweet voice, strong sound field control, obvious analytical power, strong mid- and high-frequency penetration, large dynamics, and strong sense of hierarchy.
4. Hand-made scaffold welding reduces distributed capacitance, improves high-frequency sound quality, ensures strong sound penetration, and high-frequency threading.
5. Using self-made three-stage continuous push direct-coupled single-ended amplification, the undistorted power reaches 10w, ensuring high thrust, high power, and high dynamics, while the 300B single-ended on the market is generally 8w.
6. Focus on the details. The chassis adopts an all-aluminum chassis with beautiful appearance and reasonable color matching. Transformer's cover is special-shaped and unique, the inside is a manual scaffolding, using silver-plated wire. The cathode capacitor is an imported capacitor, the cathode resistance is a 50W gold resistor, coupling capacitor for WIMA used, tube The base is a special customized tube base, the potentiometer is a Japanese potentiometer, the switch and ammeter are all customized by Taiwan, and the transformer core is a Japanese Z11 iron core. The perfect combination of classic and modern! The signal input and speaker sockets and other connectors adopt customized plug-ins.

Features:
- The sound of nature, faithfully restored
- Sound is on the scene, full of texture
- Real materials, exquisite workmanship
- Gold-plated terminals for better signal transmission
- All-aluminum case, transformer cover and the case panel are all brushed, very textured
- Transformer core is Japanese Z11 silicon steel sheet
- Self-winding transformer, excellent technology
- The transformer is made of thick materials and exquisite craftsmanship
- Dedicated resistors for tube amp
- The cathode capacitor is a custom capacitor, and the cathode resistance is a 50W golden A resistor

Technical Parameters:
- Product Type: Single-ended pure Class A tube power amplifier
- Rated power: 10W+10W (max. 11W)
- Power consumption of the whole machine: 165W
- Frequency response range: 20-25kHz
- Noise voltage: <1.5mV
- Signal to noise ratio: 88dB
- Input impedance: 100KΩ
- Input sensitivity: <1V
- Input signal: three channels
- Output impedance: 4Ω, 8Ω
- Power supply voltage: AC110~220V±10%
- Dimensions: 400x350x220xmm (the largest)
- Net weight of the whole machine: 20kg
- Resistor: RJ grade resistor
- Main capacitor: For WIMA, etc.
- Volume potentiometer: customized in Taiwan
- Screen flow monitor: Customized in Taiwan
- Welding method: pure manual scaffolding welding method
- Power supply transformer (one): 114x95x stack thickness 72
- Output transformer (two): 96x80x stack thickness 52
- Case: All aluminum alloy case

Package Included:
- 1 x Set of Tube Amplifier

Note:
- Tube covers are not included (unnecessary).
- Due to cost, the classic version does not have a potentiometer, only the deluxe version and the super deluxe version have a potentiometer.
- It is assembled.