The RAL KEB02AK balanced headphone amplifier was designed as a companion for portable media players such as the Astell & Kern AK100 and AK120.
With it's 2 digital inputs, one for toslink and one for coax SPDIF input, it is an ideal add on to your portable media player which does not have enough power to drive more demanding headphones.
Dual operation mode enables to you to connect to various music source devices.
The brand new ESS SABRE32-2M ES9018K2M DAC allows you to enjoy a finer, more crisp sound.
Includes dual separate headphone jacks for balanced output and single end output.
Battery life varies depending on connection type and load. But for example the battery will last 5hrs. to shutdown when continuous playing with SONY XBA-40(8 ohms) earphone and iPad Mini. It requires Aprox. 2hrs.45min. to be charged fully.
Equipped with a Digital Filter Switch
With the KEB02AK, it is possible to change the settings of the digital filter which is mounted on the built-in DAC (ES9018K2M) to fit connections to headphones or earphones of your liking.
The built-in power supply of the REX-KEB02AK uses lithium-ion rechargeable battery enabling continuous playback around 10 hours on a full charge.
When coaxial input / balance connection (played in 300Ω load volume 12:00 position). When USB output corresponding AC adapter is used, it will be fully charged in about 3 hours. If using the USB port of the PC, to charge the unit, it will take more than 3 hours to charge the unit. To balance the headphone output of this product, when you connect headphones or earphones, remodeling or replacing the input plug is required. The KEB02AK uses the sampling clock and jitter removal features that are built into the DAC.
Includes digital input (S / PDIF coaxial and optical)
Connect the Astell & Kern AK120 or AK100, CD players or other digital output devices to enjoy on the go listening.
The KEB02AK can also be used as a home or stationary device so you can enjoy fully balanced music at home.
Corresponding input format:
Digital coaxial: 24bit / 16bit, 192kHz ~ 44.1kHz
Digital light: 24bit / 16bit, will be 192kHz ~ 44.1kHz.
Balanced and Single-ended Output
Balance headphone output: 2.5mm micro mono jack × 2
Single-ended stereo headphone output: 3.5mm stereo mini jack × 1
Push-pull balanced headphone drive circuit with BTL connection
The balance headphone output uses TI TPA6111 for each left and right channel in the BTL connection with full balance configuration.
There is excellent channel separation with the balanced drive with crosstalk characteristics and a sense of separation in the connected earphone / headphone.
Adopts TI made TPA6138A2 for single-ended output
Implement the independent analog filter with TI made TPA6138A.
The KEB02AK reproduces excellent acoustic space with the OCL output due to balance input and DirectPath.
The adopted OCL circuit that does not use the output capacitor. There is a natural sound quality with no exaggeration in the lows.
Uses a lithium-ion rechargeable battery
The built-in power supply of the REX-KEB02AK uses lithium-ion rechargeable battery (3.7V / 1,200mA) enabling continuous playback of about 10 hours on a full charge.
When USB output corresponding AC adapter is used, the KEB02AK will be fully charged in about 3 hours. Like the USB port of the PC, in charge of a small USB port of the output current, it is necessary to charge more than three hours.
To balance the headphone output of this product, when you connect headphones or earphones, remodeling or replacing the of input plug (Li cable is limited to those possible) is required.
KEB02AK uses the sampling clock automatic follow-up generation and jitter removal features that are built into the DAC.
![DHS Rhino-Tech [RC520] Racket Case [Red]](https://www.bagxenta.shop/image/dhs-rhino-tech-rc520-racket-case-red_BLyKoZ_300x.webp "DHS Rhino-Tech [RC520] Racket Case [Red]")
