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 The KingRex T20U USB T-Amp Delivers Award-winning Tube-like Sound! Plus it is has an integral high-quality DAC with USB input.
Music is detailed, crisp and definitely not bass shy. Soundstage is wide with a lot of space around instruments and vocals. Don’t let its elegant small size deceive you! The KingRex T20U is one serious amplifier.
Cased in black steel with a heavy (6mm-thick) anodized aluminum faceplate and recessed volume knob, it will make an attractive addition to any equipment shelf.
The quality on the outside is just the first hint at what's to come. Immediately apparent is the build quality. Board layout is straightforward and direct, with minimal features, a spacious, well-thought-out design and straight-to-the-point circuitry. If you fancy listening to music from your computer ... simply think of the T20U as the best $245 USB DAC money can buy - and the award-winning Tripath amp comes with it gratis.
David Kan
6moons.com
The Tripath TA2020-20 chip gives the amp more power and results in more flexibility when choosing loudspeakers. The T20U is suitable for loudspeakers with sensitivity as low as 86dB and can effortlessly give more than enough sound for the average room.
Features- Digital Power Processing Technology (DPP)
- USB DAC built-in
- Upgradeable Op-Amps in the DAC section
- Over Current & Over Temperature Protection
- 6mm thick aluminum front panel
- Audio grade capacitors
- Large heatsink for chip longevity
The built-in high-quality DAC for USB input uses the Burr-Brown PCM2702E for DAC with USB interface, the Burr-Brown OPA2604AP for low pass filter and Texas Instruments' low-noise JFET-input TL072CP as a DC servo. A convenient plug-in socket is used, making it easy to swap out op-amps.
Each T20U comes with the bundled Universal AC Power Supply, User Guide & Manufacturer's 1-year Limited Warranty.
Add the optional matching "PSU" power supply for even more of a tube-like sound and bigger soundstage. The PSU boasts a 45VA transformer, a transistor regulated power stabilized circuit and NIPPON CHEMICON high quality aluminum electrolytic capacitors.
KingRex T20U Specifications
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| Spec. (Amplifier Unit): |
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| T-Amp IC | Tripath TA2020-20 |
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| Output Power | 2 x 22W @ 4ohm, 10% THD+N, VDD=13.5V
2 x 13W @ 8ohm, 10% THD+N, VDD=13.5V |
| Dynamic Range | 99dB |
| IHF-IM Distortion | 0.18% @ 1W, 4ohm |
| THD+Noise | 0.02% @ 10W 4ohm
0.1% @ 12W 4ohm |
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| Power Efficiency | 88% @ 20W, 4ohm
81% @ 12W, 8ohm |
| Input | Audio IN RCA (Left/Right) x 1
USB 2.0 x 1 |
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| Output | Speaker OUT (Left) x 1 pair (+ / -) Banana socket
Speaker OUT (Right) x 1 pair (+ / -) Banana socket |
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| Other Switch & Knob | Power ON/OFF switch x 1 |
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| Power Indicator (Blue LED) x 1 |
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| Volume knob x 1 |
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| Power Supply | DC 12V~13.2V(max.) |
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| Dimensions | (W)185mm x (H)50mm x (D)150mm |
| Weight |
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| DAC: |
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| DAC
| Burr-Brown PCM 2702E |
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| Op Amps
| Texas Instruments TL072CP |
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| AC Adaptor: |
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| Universal AC 100V-240V / 50~60Hz |
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| DC Output | DC 12.7V / 3A (36W) |
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| Ripple & Noise | <=50mV |
| Over-load Protection | 105%-150% |
| Over-voltage Protection | 115%-150% |
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| Accessories: | US Standard plug (2 flat and 1 round) Plugs for regions available. |
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| User Guide x1 |
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| Warranty Card x1 |
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| * To continuously improve its products, KingRex Technology reserves the right to change feaures and specifications without notice. |
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| Accesories & Related Products |
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Amazing little power...... 
