Class AB muscle with a reference-grade DAC
The Rotel Diamond Series RA-6000 Integrated Amplifier marks 60 years of Rotel's Japanese heritage. It delivers 350 watts of Class AB power per channel into 4 Ω and handles a wide spread of modern and legacy analogue and digital sources. A Texas Instruments 32-bit/384kHz DAC, MQA support and a moving magnet phono stage sit alongside aptX HD Bluetooth in one purposeful chassis.
Why You'll Love It
- Serious Class AB power. Two channels of Class AB amplification deliver 350 watts each into 4 Ω, with controlled, deep bass and fine detail.
- Reference-grade digital. A Texas Instruments 32-bit/384kHz DAC with MQA and MQA Studio support, plus certified Roon Tested operation, gets the most from streamed and stored files.
- Connects to everything. Balanced XLR and RCA line inputs, a moving magnet phono stage and aptX HD and AAC Bluetooth cover records, streamers and wireless alike.
Under the Hood
- High-resolution PC-USB. The asynchronous PC-USB input runs up to 32-bit/384kHz, decodes and renders MQA, and is fully certified Roon Tested.
- Low distortion by design. Total harmonic distortion stays under 0.0075%, with a damping factor of 600 and a line-level signal to noise ratio of 103 dB.
- Built for integration. Front panel controls, a backlit IR remote and a two-line display are joined by Ethernet, RS232, a 12V trigger and an external remote input.
CHT Insider Verdict
The RA-6000 is Rotel at its most complete, matching genuine Class AB power to a modern digital front end that most rivals charge more for. It will drive demanding speakers with ease and still spoil a good pair of bookshelves. For a one-box system built around both vinyl and high-resolution files, it is hard to fault.
Pro Tip: For the best digital sound, install the driver and use the asynchronous PC-USB input, which unlocks the full 32-bit/384kHz playback and native MQA rendering that the other digital inputs cannot reach.
Specifications
| Amplifier | |
| Type | Class AB integrated |
| Maximum Power Output | 350 W/ch (4 Ω) |
| Continuous Power Output | 200 W/ch (8 Ω) |
| Total Harmonic Distortion | <0.0075% |
| Intermodulation Distortion | <0.03% (60 Hz:7 kHz, 4:1) |
| Damping Factor | 600 |
| Frequency Response | |
| Line Level Inputs | 10 Hz - 100 kHz (±0.5 dB) |
| Digital Inputs | 10 Hz - 90 kHz (±2 dB) |
| Phono Input | 20 Hz - 20 kHz (±0.5 dB) |
| Signal to Noise (IHF A-Weighted) | |
| Line Level Inputs | 103 dB |
| Digital Inputs | 102 dB |
| Phono Input | 80 dB |
| Digital & DAC | |
| DAC | Texas Instruments 32-bit / 384 kHz |
| Coax / Optical Input | LPCM up to 24-bit / 192 kHz |
| PC-USB | USB Audio Class 2.0, up to 32-bit / 384 kHz (driver required) |
| MQA | MQA and MQA Studio up to 24-bit / 384 kHz |
| Roon | Roon Tested |
| Wireless | |
| Bluetooth | aptX HD and AAC |
| Inputs | |
| Phono (MM) | 5.2 mV / 47 kΩ |
| Line Level (RCA) | 340 mV / 5.6 kΩ |
| Line Level (XLR) | 540 mV / 100 kΩ |
| Pre-Out Level | 1.9 V |
| Output Impedance | 100 Ω |
| Control | |
| Connectivity | Ethernet, RS232, 12V trigger, external remote input |
| Display | 2-line |
| Remote | Backlit IR |
| General | |
| Finishes | Black, Silver |
| Dimensions (W x H x D) | 431 x 144 x 425 mm |
| Front Panel Height | 3U / 132.6 mm |
| Weight | 18.81 kg |


