Description
The World��S Most Linear Amplifier �� Announced At Ces 2018, The Drop + Thx Achromatic Audio Amplifier (Thx Aaa) 789 Is A Linear Bipolar Amplifier With Feed-Forward Error Correction
Fatigue-Free Listening �� Made In Collaboration With Thx Ltd , It Features The Company��S Groundbreaking Thx Aaa And Feed-Forward Topology, Which Reduce Distortion By 20 To 40 Db For Realistic, Fatigue-Free Listening.
Thx Aaa Technology �� Capable Of Driving Any Headphones, Including High-Impedance, High-Current, And High-Sensitivity Types, The Thx Aaa 789 Amp Transmits The Original Audio In Its Purest Possible Form.
Additional Features �� Each Channel Of The Thx Aaa 789 Amp Is Equipped With A Low-Bias Class-Ab Main Amplifier And An Auxiliary Error-Correction Amplifier, The Former Providing The Majority Of The Power And The Latter Providing A Realtime Low-Power Error-Correction Signal.
| Drop + THX AAA One Amplifier | Drop + THX AAA 789 Amplifier | Drop + Grace Designs Standard DAC Balanced | Drop Objective 2 Headphone AMP: Desktop Edition (Standard) | |
|---|---|---|---|---|
| Component Type: | THX Achromatic Audio Amplifier with preamp output | THX Achromatic Audio Amplifier | Standard DAC Balanced | Desktop Amplifier |
| Frequency response: | + 0.01 dB / – 0.03 dB 20 Hz �C 20 kHz | + 0.01 dB / – 0.03 dB 20 Hz�C20 kHz; + 0.05 dB / – 0.15 dB 10 Hz�C50 kHz | +/-0.1 dB (20 Hz�C20 kHz) | |
| Maximum power: | Single-Ended Output: (16 ohms): 1500 mW, (32 ohms): 2,700 mW, (300 ohms): 280 mW, (600 ohms): 140 mW | Balanced: (16 ohms): 6000 mW – (600 ohms): 400 mW. Sindle-Ended: (16 ohms): 3000 mW – (600 ohms): 100 mW | (33 ohms): 613 mW – (600 ohms): 88 mW | |
| Output impedance: | Single-Ended: < 0.1 ohms | Balanced: < 0.1 ohms / Single-Ended: < 0.05 ohms | Balanced | Single-Ended: 0.54 ohms |
| Gain: | 0.25x , 1.0x, 4.0x (-12, 0, +12 dB), selectable via front switch | Balanced: 0.66x , 2.0x, 6.6x (-4, +6, +16 dB) / Single-Ended: 0.33x , 1.0x, 3.3x (-10, 0, +10 dB) | 2.5x and 6.5x (Standard) – Recommended for higher impedance headphones, or if your source is weak (less than 2V output). | |
| Input: | Stereo RCA gold-plated | Stereo XLR-3 gold-plated Neutrik; Stereo RCA gold-plated | Coaxial connector for SPDIF (IEC-60958) audio input, USB 2.0/1.0 input type-B | RCA |
| Outputs: | 1/4 in (6.35 mm), TRS gold-plated Neutrik, Stereo RCA preamp gold-plated | 1/4 in (6.35 mm) TRS gold-plated Neutrik; 3.5 mm TRS gold-plated; XLR-4 balanced gold-plated | 3.5mm stereo line output jack (2.15VRMS), 3-pin XLR balanced line output(4.3VRMS) | 1/4 in (6.35 mm) |
| Power Supply: | 30 VDC inline brick, universal input 100 �C 240 VAC | 24 VDC inline brick, universal input 100�C240 VAC | USB bus-powered design | Battery (not included) or 120V AC adapter (included) |
| Dimensions: | 8.1 x 8.1 x 1.5 in / (207 x 206 x 39 mm) | 8.3 x 9.1 x 2.2 in / (210 x 230 x 57 mm) | 3.9 x 4.1 x 1.2 in / (100 x 104 x 30 mm) | 4.12 x 3.87 x 1.12 in / (105 x 98 x 29 mm) |
| Weight: | 2.6 lbs (1,300 g) | 3.4 lbs (1,520 g) | 7.44 oz (210.8 g) | 9 oz (255 g) |
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