O-Noorus D4 Pro - TPA3255 PFFB Balanced Amplifier with DAC, HDMI ARC/Sub-Out/LPF/HPF

[Guddu]

Here is new additional from O-Noorus...............

O-NOORUS D4 PRO TPA3255 PFFB stereo HPF LPF Amplifier with Balance HDMI ARC Bluetooth USB Optical Coaxial RCA input, 3-Band stereo EQ tone and bypass

O-NOORUS D4 PRO TPA3255 PFFB stereo HPF LPF Amplifier with Balance HDM

Specifications：Model: D4 PROTHD: ≤ 0.004% @1KHz 5WSNR: ≥ 93dB @1KHz 5W SNR: ≥ 106dB @1KHz 120W SINAD: 90dB @1KHz 5WInput Mode: Balance/RCA/HDMI ARC / BLUETOOTH/ USB /Optical/ Coaxial Power Supply: 36V5A/48V5A/NO POWERWorking Voltage: 24V~ 48VTerminating Impedance: 2-8ΩFrequency Range...

www.o-noorus.com

Specifications：
Model: D4 PRO
THD: ≤ 0.004% @1KHz 5W
SNR: ≥ 93dB @1KHz 5W SNR: ≥ 106dB @1KHz 120W
SINAD: 90dB @1KHz 5W
Input Mode: Balance/RCA/HDMI ARC / BLUETOOTH/ USB /Optical/ Coaxial
Power Supply: 36V5A/48V5A/NO POWER
Working Voltage: 24V~ 48V
Terminating Impedance: 2-8Ω
Frequency Range: 20Hz - 20kHz
Output Mode: Passive speakers/Active subwoofer

Package Include:
O-NOORUS D4 PRO Amplifier*1
48V5A/48V10A/NO POWER(Optional)
User Manual*1

Mini amplifier, Multiple inputs, Custom Tone, Big Power, Low Distortion

--TPA3255+PFFB technology, full-frequency low distortion, driving audiophile-grade speakers.

--Full-scenario interconnection: HDMI ARC synchronizes TV volume, Bluetooth 5.3/optical fiber/coaxial /RCA/USB multi-input, creating 2.1 channels.

Customizable Sound

--Free customization of tone｜Interchangeable op amp 3-band EQ tone ±12dB adjustment, precise adjustment of vocals/low frequency.

--BASS, MID, TREBLE for 100Hz, 1000Hz, 10000Hz frequency bands respectively independent adjustment (±12dB)

Main output with high-pass filter and bypass​

60Hz high-pass filter parameters：

5th order Butterworth; 60Hz passband; Stopband: Fs: 45Hz, Asb: -12.00 dB

80Hz high-pass filter parameters：

5th order Butterworth; 80Hz passband; Stopband: Fs: 60 Hz, Asb: -12.00 dB

120Hz high-pass filter parameters：

5th order Butterworth; 120Hz passband; Stopband: Fs: 90 Hz, Asb: -12.00 dB

Congrats & All the Best @Alexander Lin

 

[ppataki]

HPF and LPF, love it!!
Long awaited features for those with passive subs and no DSP

 

[Guddu]

@Alexander Lin
Just a quick suggestion to simply improve user experience:

 

[nirurin]

Dangit. I'd already been having trouble deciding between picking up the ampapa D1 or the onoorus D3pro.
And now there's a D4 pro which.... seems to have all the D3pro features, but with a few extra controls on top. Less of a 'screen' than the D1 or D3pro but I was already thinking that after the novelty wore off I'd probably have the screens turned down to minimum brightness (or off) anyway.

Dangit. I may just buy one of these and hope it's good.

 

[Totemis]

@Guddu @Alexander Lin
Hello, O-noorus website is missing a lot of information and also the manual download for understanding better the ux experience .
Do you know the max power (48v-10A) @4 Ohm ? 200w each channel ? Do yo know if we can adjust right/left power output for each channel ? Is Rca input also output (like D3 pro) ? Does usb c deliver 5v output ? is Hdmi ARC also CEC ? Does D4 pro is sharing some similar functionality as D3 pro ? Best regards to o-noorus dreamteam.

 

[PPPossum]

Been looking at this for a while now because I like the physical knobs and the integrated DAC circuitry.
If anyone know a similar device please let me know.

Back to the D4 Pro. O-noorus tells me via E-mail that the specs, test data and general information on this unit is going to go live (edit: On their site of course) sometime on Saturday.
So... Waiting patiently for that.

 

[LLKMuffin]

I've gotten word from the rep on their official AliExpress store that the release has been delayed, as they are looking to add e-ARC support to the HDMI port. The D4 Pro is listed as out of stock for now.

Was super excited for this launch and was going to be an instant purchase for me, but eARC support would be pretty great to have. I'm fine with waiting a bit longer for that (hopefully not too long...)

Anyone got an ETA on the new release date?

 

[Nickname2516]

I've gotten word from the rep on their official AliExpress store that the release has been delayed, as they are looking to add e-ARC support to the HDMI port. The D4 Pro is listed as out of stock for now.

Was super excited for this launch and was going to be an instant purchase for me, but eARC support would be pretty great to have. I'm fine with waiting a bit longer for that (hopefully not too long...)

Anyone got an ETA on the new release date?

I purchased it from the official website. After sending an email, I was told that shipping would take place on February 15th. However, I would have preferred it if this information had also been stated on the website