Product Overview & Specifications
The Mission 778X is a compact integrated amplifier and digital-to-analogue converter that revisits classic 1980s Mission styling while incorporating comprehensive modern audio connectivity. Reimagining the original Mission 778 concept, the 778X features tactile rotary control knobs ringed with LED level indicators, an integrated JFET Moving Magnet phono stage, and Class AB power amplification delivering 45 watts per channel into 8 ohms (65 watts into 4 ohms).
Equipped with an ESS Sabre32 ES9018K2M Reference DAC, the 778X processes high-resolution digital audio files up to 32-bit/384kHz PCM and native DSD256 via asynchronous PC USB, as well as 24-bit/192kHz via coaxial and optical inputs. Wireless streaming is supported via Bluetooth 5.0 with aptX and AAC codecs. The unit also includes a dedicated high-slew-rate headphone amplifier section, preamp outputs for power amplifier expansion, and digital outputs for external routing.
KEY FEATURES & PROPRIETARY TECHNOLOGIES
- Retro-Inspired Compact Chassis with Modern LED Metering: Modernized half-width design featuring large tactile rotary selectors framed by LED status and volume indicators.
- ESS Sabre32 ES9018K2M Reference DAC: Utilises 32-bit HyperStream architecture and Time Domain Jitter Eliminator for low-noise digital file decoding up to PCM 384kHz and native DSD256.
- Low-Noise JFET MM Phono Stage: Built-in Moving Magnet phono preamp featuring precise RIAA equalization and high-input sensitivity without requiring external preamplification.
- Bluetooth 5.0 Wireless Connectivity: Integrated Bluetooth receiver with support for high-quality aptX and AAC codecs for direct streaming from mobile devices.
- High-Slew-Rate Dedicated Headphone Stage: High-speed internal headphone amplifier capable of driving dynamic headphones rated between 20 and 600 ohms output impedance.
- Comprehensive Digital & Analogue Routing: Offers 2x AUX line inputs, MM phono, PC USB, coaxial, optical, and Bluetooth inputs alongside RCA pre-outputs and digital pass-through outputs.
SPECIFICATIONS
| Specification | Detail |
|---|---|
| Product Category | Integrated Amplifier with DAC & Bluetooth Receiver |
| Brand / Model | Mission — 778X |
| Rated Power Output (Stereo) | 2x 45 W RMS @ 8 Ω | 2x 65 W RMS @ 4 Ω |
| Digital-to-Analogue Converter | ESS Sabre32 ES9018K2M Reference DAC Chip (32-bit Architecture) |
| Digital Input File Support | PC USB: PCM 44.1kHz–384kHz / DSD64, DSD128, DSD256 | Optical/Coax: 44.1kHz–192kHz |
| Wireless Input Technology | Bluetooth 5.0 (aptX / AAC Codec Support) |
| Phono Stage Architecture | Low-Noise JFET Circuitry with RIAA Equalization (Moving Magnet / MM) |
| Phono Input Sensitivity & Load | 2.5 mV (Phono MM) | 47 kΩ // 100 pF |
| Analogue Audio Inputs | 2x Stereo RCA Pairs (AUX Line Level), 1x Stereo RCA Pair (Phono MM) |
| Digital Inputs | 1x Asynchronous PC USB (Type B), 1x Coaxial S/PDIF, 2x TOSLINK Optical |
| Analogue & Digital Outputs | 1x Stereo RCA Pre-Out, 1x Coaxial Digital Out, 1x TOSLINK Optical Out |
| Power Amp Gain & THD | Gain: +31 dB | THD: < 0.005% (30 W / 8 Ω) |
| Preamplifier THD & SNR | THD: < 0.003% | SNR: > 110 dB (A-Weighted) | Pre-Out Level: 2.1 Vrms Max |
| Headphone Amplifier Output | THD: < 0.01% (1 kHz, 50 mW) | Output Impedance: 4.7 Ω | |
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Mission 778X Integrated Amplifier
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