O-NOORUS D1 is a TPA3255 PFFB Power Amplifier for Passive Speakers that Features a stereo 300 watt x2 power output. Pre-out and Subwoofer changes with the master volume. Subwoofer cutoff frequency 80Hz.

In order to meet different needs, D1 has two modes: BP (Treble/bass is bypassed) and T&B (Treble/bass is connected).

only has RCA input. Stereo 300W x2 outputs to connect passive speakers. Pre-out and active subwoofer

Volume/treble/bass/color/brightness are controlled Only by remote control. with NJW1194 chip not only controls the output volume, but also controls the gain of treble and bass within a range of +/-10db.

the treble and bass will be bypassed and you will get a pure amplifier that focuses on sound quality.

PFFB offers many benefits including lower output noise, improved THD+N performance, improved IMD

performance, lower output impedance, frequency response less affected by load impedance, and

suppression of nonlinearities of the LC filter.

Note: In bypass mode, the remote control cannot control the volume. It can only switch modes.

D1 TPA3255 PFFB Amplifier

D4 TPA3255 Amplifier 48V5A

D4 TPA3255 Amplifier 36V5A

Input

RCA

Input

Bluetooth,USB,Optical,Coaxial,ARC,HDMI ARC

Input

Bluetooth,USB,Optical,Coaxial,ARC,HDMI ARC

Output

Stereo 300W x2; Subwoofer 80hz; Pre-out;

Output

Stereo 300W x2; Subwoofer 80hz; Pre-out;

Output

Stereo 300W x2; Subwoofer 80hz; Pre-out;

remote control

With remote control

remote control

no remote control

remote control

no remote control

TPA3255 PFFB Power Amplifier

Mode Selection

Input-Output

Input mode switching method

In T B mode ,

In BP mode

TI PurePath Ultra-HD Analog-Input

Replaceable Op Amps

High-Quality Components

Excellent heat dissipation

TPA3255 PFFB Power Amplifier

Post filter feedback

Infrared remote control

TPA32552 channel mini amplifier