RATOC REX-KEB02iP Portable Amplifier

DSD Full-Balance Portable Headphone Amplifier by RATOC.

- Brand: RATOC Systems, Inc.
- Model Name: REX-KEB02iP

Key Features
Equipped with two modes: USB-DAC mode and iPod compatible mode. Supports DSD64/DSD128 and L-PCM up to 24bit/384kHz.
Full-balance configuration circuit to maximize expressive power.
Equipped with a digital filter switch.
Employs the highly acclaimed ESS DAC ES9018K2M.
Equipped with two output systems: balanced and single-ended.
Balanced headphone drive circuit features powerful drive via BTL connection.
Employs a single-ended dedicated amplifier with a dedicated filter circuit for balanced input.
Focus on the internal power supply, using a domestically produced lithium-ion rechargeable battery.
Product Specifications
Model Number: REX-KEB02iP
Product Name: DSD Compatible Full-Balance Portable Headphone Amplifier
Input Terminals:
[USB] USB Standard-A: For iPod, iPhone, iPad connection in iPod compatible mode.
USB Mini-B: For PC connection (Windows PC/Mac) or connection with Lightning-USB Camera Adapter, SONY WMC-NWH10.
USB Micro-B: For charging the built-in lithium-ion battery.
Output Terminals: Headphone Output: Non-clip maximum output
2.5Φ Mono: 1.7Vrms/131mW per channel (22Ω load)
3.5Φ Stereo: 1.62Vrms/38.0mW per channel (68Ω load)
Switches: Power switch (integrated with volume knob)
Headphone level switching switch (Low ⇔ High)
Input switching switch (iPod ⇔ USB-BT ⇔ USB-BP)
Digital filter switching switch (Slow ⇔ Sharp)
Compatible Headphones: Headphones or earphones with a 3.5Φ stereo mini plug.
Balanced connection type headphones or earphones with 2.5Φ micro mono plugs (mono x 2) for each channel.
Power Supply: Built-in rechargeable battery. Charger adapter input voltage range: 4.75V to 6.6V (USB Micro-B).

The box has signs of tape removal and usage. The main unit has no particularly noticeable scratches. Please check the photos. Accessories are as shown in the photos.
Operation has been confirmed.