Features
- Nutube input/Super Class A discrete output amp
- Output power <1,700 mW per channel
- Frequency response 20hz-40Khz
- 4.4mm output impedance <0.3ohms
- 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.

Specifications
Output Voltage | 9Vrms (4.4mm balanced output), 4.5Vmrs (3.5mm single-ended output) |
Output Power | 1700mW+1700mW@32Ω |
Line-in Voltage | <2.5V |
Output Impedance |  0.25Ω (4.4mm balanced output), 0Ω (3.5mm single-ended output) |
Frequency Response | 20Hz-40kHz +0.5dB/-2dB |
Recommended Headphone Impedance | 8~600Ω |
Input Port | 4.4mm TRRRS Balanced |
Output Port | 4.4mm TRRRS Balanced, 3.5mm TRRS Single-Ended |
Gain |  +11.5dB (High Gain), +2dB (Low Gain) |
Charging Time | 2.5 Hours |
Average Play Time | Â 10.5 Hours |
Size | 139*82*28mm |
Weight | 352g |

Description

Dual Nutube 6P1 Vacuum Tubes
Manufactured by KORG and Noritake, the 6th Gen Nutube operates exactly as a conventional triode vacuum tube and creates the same characteristic rich overtones that are sought after in triode tubes. At the same time, Nutube achieves substantial power savings, miniaturization, and quality improvements when compared with many conventional vacuum tubes.
Voltage amplification is achieved with the Nutube, which results in a captivating and distinctive vacuum tube sound, all while maintaining exceptional linearity.
Unprecedented Six Batteries Form an Efficient Pure Power Supply
The PB5 utilizes 6 batteries to establish a robust power supply system. The Nutubes are powered by two batteries, while the other 4 batteries function as the power supply for the secondary amplifier. With our efficient and pure power supply, you will experience very immersive and crystal-clear sound.


24-Position,  4 Section Stepped Attenuator
- Extremely diminutive 24-position, 4-section stepped attenuator.
- Optimal analog volume control enhances the ability to showcase the distinct analog characteristics of our vacuum tube amplifier.
- Channel imbalance is within a range of less than +/-0.1dB.
- When adjusting the volume, the noise floor is simultaneously attenuated.
A Tube AMP For The MAX Users
- The PB5 can use a line input voltage of up to 2.5 volts.
- If higher than this, the sound will have distortion.
- If you are using the DX220MAX, DX300MAX, or DX320MAX’s line out with the PB5, please do not use the highest gain setting.

Excellent Power Delivery, 1700mW+1700mW@32ohm Driving Power
With the 6-battery power supply and transistor current amplifier, the PB5 delivers up to 1700mW+1700mW@32ohm.
Two-step Suspension & Cathode Input To Minimize Microphonics & Interference
The two-step suspension absorbs vibration mechanically and minimizes the microphonic effect. The cathode input reduces the impedance, resulting in reduced signal interference from external sources.


Cutting Edge Parts To Present The Ultimate Analog Sound
24-position 4 section stepped attenuator with a channel tolerance of less than +/-0.1dB.
Texas Instruments classic OPAMP OPA827, known for its exceptional performance and rich analog characteristics.
Low VCEsat (BISS) dual transistors with a high output current of up to 2 amps.
iBasso custom film capacitors contribute to the natural analog magic.


Additional information
Colour | Black, Silver |
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Warranty
Backed with 1-year of Manufacturer Warranty
Delivery Info
Delivery Information
As a company, our primary goal is to provide a seamless service that results in customer satisfaction. We aim to deliver within 3 working days. Unfortunately, there may be occasions where this time frame may not be met due to unforeseen circumstances; in this instance, we deliver product/s as soon as possible. All delivery charges are included within the prices quoted unless otherwise specified.
All small items are usually delivered between 9 am and 6 pm, Monday to Friday, unless a Saturday delivery is requested. Follow My Parcel is an industry-changing innovation from DPD Local, which will give your customers unparalleled levels of information and peace of mind. Not only will your customers receive a one-hour delivery timeslot, but they’ll also be able to track the progress of their parcels on a map as our drivers make their way to the delivery addresses. Follow My Parcel will: