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O-NOORUS D1 Class D Amplifier TPA3255 PFFB
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Accessories for this product
Find here a selection of useful and/or essential accessories for this product. These are specially selected by the Audiophonics team according to the characteristics of the product.
O-NOORUS D1 Class D Amplifier TPA3255 PFFB 2x250W 4 Ohm Red
The O-Noorus D1 amplifier is based on a PFFB (Post Filter FeedBack) architecture and a TPA3255 amplifier chip coupled to two NE5532 OPAs, enabling it to deliver up to 2x 250W @ 4ohm (1% THD+N, with a 50V power supply). In terms of connectivity, the D1 has the essentials, with an analog RCA input and a speaker output, plus a subwoofer output for a 2.1-channel system, and a 3.5mm jack pre-out. The cutoff frequency of the subwoofer output is 80Hz for deep, immersive bass.
This O-Noorus amplifier operates in two distinct modes: BP (ByPass) and T&B (Treble & Bass). ByPass mode, as its name suggests, does not allow volume control, so the amplifier will operate at full power, while T&B mode allows volume control and treble and bass adjustment over a range of -/+10db thanks to an NJW1194 volume control chip. An infrared remote control completes the package for an optimal user experience.
O-NOORUS D1: output for active subwoofer
The D1 incorporates a subwoofer output for setting up a 2.1-channel system and enjoying a small home cinema set-up or simply listening to music with immersive bass.
O-NOORUS D1: control via potentiometer or IR remote control
The potentiometer not only controls the volume, but also changes the operating mode of the D1 amplifier. An IR remote control provides easy access to the many settings available, including operating mode, volume, treble, bass, screen color and brightness.
O-Noorus D1 overview
| 1 | Menu |
| 2 | LED operating mode indicator |
| 3 | Submenu display (volume, treble, bass, etc.) |
| 4 | Mute LED indicator |
| 5 | IR remote control receiver |
| 6 | Multifunction knob/potentiometer |
| 7 | Right channel RCA input |
| 8 | Left channel RCA input |
| 9 | Subwoofer output |
| 10 | Pre-out jack 3.5mm |
| 11 | Speaker terminal output |
| 12 | 24V-50V DC power supply input |
Technical characteristics
| Specifications | |
|---|---|
| Product type | Amplifier |
| Amplification type | Class D |
| Amplification chip | TI TPA3255 |
| OPA | 2x NE5532 |
| Input | 1x Stereo RCA |
| Outputs | Speaker terminals 1x Subwoofer 1x Pre-out jack 3.5mm |
| Output power | 2x 250W @ 4 ohm (1% THD+N, with 50V power supply) |
| THD | ≤ 0.01% |
| SNR | ≥ 109dB |
| Terminaison impedance | 2-8Ω |
| Frequency response | 20Hz-20kHz |
| Remote control operating distance | 25m |
| General | |
|---|---|
| Power supply | 24V-50V DC (36V/5A power supply included) |
| Dimensions | 120 x 170 x 38mm |
| Weight | 0.650kg |
| Color | Red |
| Package | 1x O-Noorus D1 amplifier 1x Remote control 1x Power supply DC 36V/5A |
| Input | RCA |
| Output | Jack 3.5mm |
| Output | Speaker terminal |
| Output | Subwoofer |
| Color | Red |
| Channel | 2.1 |
| Class | Class D / T |
| Amplifier chip | TPA3255 |
| Power (W) | 250.0 |
| Remote Control | Yes |
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