iBasso PB5 Headphone Amplifier
Best portable amplifier for audiophiles seeking rich, tube-driven sound on-the-go.
This portable powerhouse brings the lush, harmonic warmth of real vacuum tubes to your mobile setup without sacrificing driving authority. It is a bulky, uncompromising commitment to analog soul that demands space in your bag, but rewards you with a depth of sound that digital-only players simply cannot replicate.
$1499.00
at
Hifigo
Who it's for
- Audiophiles seeking classic tube warmth in a portable package
- Listeners using demanding planar magnetic or high-impedance headphones
- Mobile enthusiasts wanting a stackable, high-performance audio setup
Who should skip it
- Commuters needing all-day battery life and cool-running equipment
- Casual listeners shopping for budget-friendly audio gear
- Users preferring low-maintenance, rugged gear for travel
Performance breakdown
Tube Harmonic Richness
Dual Nutube technology delivers authentic, lush warmth in a portable frame.
Driving Power
Effortlessly handles demanding high-impedance headphones with massive output headroom.
Power Supply Purity
Six-battery architecture ensures a clean, noise-free signal for critical listening.
Volume Precision
Stepped attenuator provides tactile, accurate control over delicate gain adjustments.
Microphonics Control
Advanced vibration reduction keeps the tube signal clear during mobile use.
Portability
Substantial build quality prioritizes audio fidelity over lightweight, pocketable convenience.
Key Specs
Output Power
1700mW+1700mW @ 32Ω
Tube Type
Dual KORG/Noritake Nutube 6P1
Recommended Headphone Impedance
8~600Ω
Output Voltage
9 Vrms (4.4mm balanced), 4.5 Vrms (3.5mm SE)
Frequency Response
20Hz-40kHz +0.5dB/-2dB
Dimensions
139*82*28mm
Weight
352g
Average Play Time
10.5 hours
Output Interfaces
3.5mm Jack, 4.4mm Balanced
Amplifier Technology
Vacuum Tube
Know before you buy
Still have a question?
Ask Metto anything about the iBasso PB5 Headphone Amplifier before you decide.