Nobsound Douk Audio Little Bear B4-X Dual-Mono Bal. Tube Headphone Amp

Description

GARANSI RESMI INTIUM INDONESIA!!!
Garansi Mesin 6 Bulan, Garansi Tube 3 Bulan

Nobsound Douk Audio Little Bear B4-X Dual-Mono Bal. Tube Headphone Amp
Little Bear B4-X Portable Vacuum Tube Headphone Amplifier Dual-Mono Balanced Stereo Audio Amp

The difference between B4 and B4-X
1. B4-X is a dual-mono balanced version. Its left and right channel are amplified by independent components, and power supply, tubes, and op amp are all independent and symmetric. So the degree of sound separation is higher than B4.
2. B4-X adopts 2 groups of independent power supply(+12V and -12V) for 2 op amps, less mutual effects and can drive 300Ω headphones.
3. The circuit adopts dual op amp parallel output, with higher output power.
4. B4-X has 3.5mm and 2.5mm 2 kinds of output interface, suitable for most of balanced and standard headphones.

Features

Mini size and unique design: built-in tube makes you have a tube amplifier which can be held by one hand, convenient to carry and can enjoy HiFi music everywhere.

With built-in battery protection circuit: battery lets your listening feast without time limitation. It can’t be turned on during charging and will power off automatically after fully charged, and charger LED will turn to green.

Full, delicate and soft sound: warmer than transistors, independent op amp and power supply inhance the SNR and degree of separation, less interplay and higher sound quality.

High-end making material and craft: using gold-plated socket, original nichicon electrolytic capacitor, original DALE resistors and precision ring resistance.

Parameters:

• Tube: USA RAYTHEON JAN5899 ×2
• Op amp: NE5532*2 (can be upgraded )
• Lithium Battery: 12V, 1000mA
• Charging time: 2-2.5 hours
• Working time: 4-4.5 hours
• Output power: 450mW
• SNR: 105dB
• Suggest load impedance: 16-300Ω
• Output: 2.5 balanced Jack*1, 3.5mm Jack *1
• Size: 115 * 69 * 23 mm (L*W*D) (does not include the knob)

Packing List:

• 1× headphone amplifier
• 1× power supply
• 1× 3.5mm audio cable
• 2× band

Info Garansi:

• Cara Klaim : Hubungi Distributor
• Periode Garansi : 6 Bulan
• Tipe Garansi : Garansi Distributor