QUAD Launches Quad 3 Integrated Power Amplifier

All Image Credit: QUAD
Following the launch of the Quad 33 and Quad 303, Quad has launched the Quad 3 that pay homage to the brand’s iconic 22 and 33 preamps. This Integrated power amplifier features flush-mounted rotary controls, their distinctive two-tone finish in matt silver and dark grey, with signature orange accents, bringing together cutting edge analog and digital technologies in a compact 11.8 inch (30cm) wide chassis.
The Quad 3 is powered by Class A/B amplification that delivers 65wpc into 8 ohms and 100wpc into 4 ohms. The amp’s output stage uses Quad’s ‘Complementary Feedback’ (CFB) technology in pursuit of “superior linearity and excellent thermal stability”. A 235VA ultra-low-noise toroidal transformer powers the circuitry, and each critical section has its own independent low-noise supply.

At the heart of the QUAD 3’s digital section the ESS Sabre ES9038Q2M DAC supports up to 32-bit/768kHz PCM, DSD512, full MQA decoding and the Quad 3 is certified as ‘Roon Tested’. Users can choose from five DAC filter settings and optional upsampling. Complementing the DAC is a Class A post-DAC filter and proprietary clock and power circuitry.
To tailor your sound, the Quad 3 provides “classic Quad tone controls”, with digital rotary encoders that provides adjustment of; balance, bass, and ‘Tilt’, all of which operate in the analog domain. The Tilt control adjusts the frequency response around a 700Hz axis, providing subtle tonal adjustments without the drawbacks of traditional bass and treble knobs.

The Quad 3 comes with a full range of inputs. Digital options include; 1 x USB Type B, 1 x HDMI ARC, Bluetooth 5.1 with aptX HD support, and 1 x optical and 1 x coaxial S/PDIF connections. Analogue connectivity includes; 2 x line-level RCA inputs and 1 x MM phono stage with RIAA EQ. There’s a dedicated headphone amplifier and a 6.35mm headphone output discreetly located at the front beneath the chassis. Speaker connectivity is provided by two pairs of gold plated binding posts, a USB-A port is available for firmware updates plus a 12V trigger input/output for system integration. The QUAD 3 also includes 1 x stereo pre-out.

Finally, control is available using the four front panel rotary encoders and large volume control and the supplied hand held remote.
Specifications:
- Power Section: 2 x 65W (8 ohm), 2 x 100W (4 ohm), Class AB
- Design philosophy and core technology:
- MQA Full Decoder (PC USB, Coax/Optical)
- Bluetooth 5.1 (aptX/aptX HD) Streaming
- Dedicated High Performance Low Noise MM Phono stage
- Dedicated Current-Feedback Headphone Amplifier
- Built-in Bass and Tilt adjustment
- USB Firmware Upgrade
- 2 x Analogue (Aux), 1 x Phono (MM) inputs
- Inputs: 1 x SPDIF (Coax), 1 x SPDIF (Optical), 1 x PC USB, 1 x HDMI ARC, 1 x Bluetooth (aptX/aptX HD), 1 x 12V Trigger
- Outputs: 1 x Pre Amplifier,1 x Stereo Speaker,1 x Headphone, 1 x 12V Trigger
- Sampling Frequency: Optical/Coaxial: 44.1kHz -> 192kHz, PC USB: 44.1kHz -> 768kHz (PCM) / DSD64, DSD128, DSD256, DSD512
- Preamplifier Section: Gain (max.)+0dB (Line), +47dB (Phono MM)
- Input Sensitivity: 800mVrms (Line, Volume = 0dB), 3.6mV (Phono MM, Volume = 0dB)
- Input Impedance: 10K (Line), 47K / 100pF (Phono MM)
- Total Harmonic Distortion (THD): <0.001% (1kHz @ 2V, Volume = 0dB)
- Frequency response: 20Hz-20kHz (+/-0.1dB)
- Output voltage: 2.3V max. (Volume = 0dB)
- Output impedance: 120 ohm
- Signal-to-Noise ratio: > 110dB ( A-weighted), > 78dB (Phono MM, A-weighted)
- DAC:
- D to A Converter: ES9038Q2M 32-bit DAC
- Total Harmonic Distortion (THD): < 0.001% (1kHz @ 0dBFS)
- Output level (0dBFS, 1kHz): 2.05VrmMax.
- Sampling Frequency:
- Optical/Coaxial: 192kHz, PC USB: PCM768kHz, DSD512
- Signal-to-noise ratio (S/N): > 116dB (A-weighted)
- Power Amplifier Section:
- Gain: +29dB
- Rated Power Output: 2 x 65W (8 ohm, THD<1%), 2 x100W (4 ohm, THD<1%)
- Frequency Response: 20Hz-20kHz (+/-0.3dB)
- Total Harmonic Distortion (THD): <0.003% (1kHz @ 30W/8ohm)
- Input Sensitivity: 800mVrms
- Signal-to-Noise ratio (S/N): > 110dB (A-weighted)
- Max. Output Current: 10A
MSRP:
- US: $2,799.00
- UK: £1,249.00
- EU: €1,499.00
For more information visit the QUAD UK web site.
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