SKU: 18953150932

iBasso PB5 OSPREY Dual Nutube 6P1 Vacuum Balanced Tubes Portable Amplifier

Sale price$674.55 Regular price$749.50
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Description

iBasso PB5 OSPREY Dual Nutube 6P1 Vacuum Balanced Tubes Portable AmplifierFeatures: >High End Portable Tube Headphone Amplifier. >Dual NuTube 6P1 Vacuum Tubes. >Robust Power Supply System With Six Batteries. >Highly Precise 24 Level 4 Section Stepped Volume Adjustment. >Tremendously Powerful. >Up to 1700mW Per Channel Output at 32 Impedance. >Two Step Suspension & Cathode Input. >Exquisite Components For Exclusive Sound. Technical Specifications: >Output Voltage: 9Vrms(4. 4mm), 4. 5Vrms(3. 5mm). >Output Power:

 

Features:-

>High-End Portable Tube Headphone Amplifier.

>Dual NuTube 6P1 Vacuum Tubes.

>Robust Power Supply System With Six Batteries.

>Highly-Precise 24-Level 4-Section Stepped Volume Adjustment.

>Tremendously Powerful.

>Up to 1700mW Per Channel Output at 32Ω Impedance.

>Two Step Suspension & Cathode Input.

>Exquisite Components For Exclusive Sound.

Technical Specifications:-

>Output Voltage: 9Vrms(4.4mm), 4.5Vrms(3.5mm).

>Output Power: 1700mW+1700mW(32Ω).

>Line-in Voltage: <2.5V.

>Output Impedance: 0.25Ω(4.4mm), 0Ω(3.5mm).

>Frequency Response: 20Hz-40kHz.

>Recommended Headphone Impedance: 8-600Ω.

>Inputs: 4.4mm.

>Output: 4.4mm+3.5mm.

>Gain: +11.5dB(High), +2dB(Low-Gain).

>Charging Time: 2.5 hours.

>Battery Life: Up to 10.5 hours.

Experience the magic with the all-new iBasso PB5 Osprey, a high-end balanced tube portable amplifier for headphones. This stunning amplifier brings a purely analog sound with its dual NuTube 6P1 Vacuum tube design. It offers unprecedented performance with a rich tone and an analog character throughout the frequency band. The amplifier has a 24-position 4-section stepped attenuator volume adjustment that allows you precise adjustment with both channels. iBasso PB5 has a six-battery design with a powerful amp section producing up to 1700mW per channel output at 32Ω of impedance load. iBasso brings you pinnacle of the performance with the outstanding PB5 Tube Headphone Amplifier.

Experience The Pure Analog Magic:-

iBasso PB5 brings a purely analog sound with its dual hybrid tube design. It brings a charming sound with a rich tone and clear dynamics. The high-end NuTubes add a rich flavor to the sound bringing lovely vocals and a magical tone.

Dual NuTube 6P1 Tubes:-

Developed by KORG and Noritake, the 6th gen NuTube on the iBasso PB5 operates exactly as a conventional triode vacuum tube and creates the same rich and dynamic overtones that are appreciated in a desktop tube amplifier. NuTube achieves substantial power savings with a high-efficiency design. Voltage amplification is also achieved with the NuTube, which results in a captivating and distinctive vacuum tube sound.

High-Efficiency Power Circuit:-

iBasso PB5 adopts a high-efficiency power circuit. The amplifier utilizes six batteries for a robust power supply system. The NuTubes are powered by two batteries while the other 4 batteries provide power to the secondary amplifier. With this high-efficiency circuit, the output is clean and crisp with no audible noise or power interference.

Precise Volume Adjustment:-

iBasso PB5 features extremely diminutive 24-position, 4-section stepped attenuator. It provides optimal analog volume control that greatly enhances the ability to showcase distinctive analog tones and provides excellently precise volume adjustment for both channels.

Tremendously Powerful:-

Along with the rich tone, we also have high-power output from the iBasso PB5. It has a strong output power rating of up to 1700mW per channel at 32Ω of impedance load. It can drive high-power requiring IEMs and Headphones without breaking a sweat.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 18953150932

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Jocko
San Leandro, US
★★★★★ 5
Very Comfortable Shoes
Size: 11, Color: Black Full Grain
Were purchased as a gift and the wearer says they are the most comfortable shoes he has
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Reviewed in the United States on December 28, 2025
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DALIA ALVAREZ
Belleville, US
★★★★★ 5
Great shoes
I like these shoes they are comfortable, and look great. Good quality, it fits to its size.
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Reviewed in the United States on May 19, 2025
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Leonardo Perez
West Palm Beach, US
★★★★★ 1
Mal presentado
Size: 9, Color: Black Full Grain
Un zapato llego con cosido defectuoso
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Reviewed in the United States on October 29, 2025
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Joe
Birmingham, US
★★★★★ 5
Comfortable
Size: 11.5, Color: Black Full Grain
Fit great very comfortable
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Reviewed in the United States on October 16, 2025
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DAVID L.
Dallas, US
★★★★★ 5
Nice shoes!
Size: 11, Color: Black Full Grain
I bought them in black and I like them so much I will be buying the brown soon. They fit true to size and are comfortable and stylish. I like the clean simplicity. They're basically a dressy sneaker which is perfect for my job's 'dress code'. Yet they're stylish enough to be worn weekends or a night out. They seemed just a touch stiff out of the box but IMO that's completely normal and fine - after just a couple days of wearing them they are breaking in nicely. No complaints on that. They seem to be of very high quality and I'm very happy with them.
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Reviewed in the United States on February 8, 2026

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