The Rega Aos MC Phono Preamp is a dedicated moving coil phono stage engineered with rear-panel RCA inputs and adjustable impedance architecture to integrate directly with a wide variety of cartridges. Drawing its core electronic layout from reference-tier engineering, the unit amplifies low-level cartridge signals with exceptional accuracy, letting listeners experience the full dynamic range and rhythmic drive pressed into their vinyl records.Reference-Grade Circuit Architecture:At the core of the Rega Aos MC is an all-analogue, two-stage Class A circuit design that operates without digital processing. The input stage uses parallel-connected, low-noise field-effect transistors configured to prevent bias current from entering the delicate cartridge coil. This protects the magnetic balance of the pickup while driving the passive high-frequency equalization stage with absolute clarity and lifelike detail.Tailored Cartridge Versatility:Because every moving coil cartridge demands specific electrical matching, the Rega Aos MC features rear-panel dip switches for quick fine-tuning. Listeners can adjust resistive loading across four settings, select between two capacitive load options, and apply a 6 dB gain boost for extra-low-output pickups. This adaptability ensures tonal balance, crisp high frequencies, and optimal volume matching across diverse audio collections.Interference-Free Aluminum Enclosure:Housed in a custom half-width shielded aluminum casework, the Rega Aos MC effectively blocks external electromagnetic noise and radio frequency interference from contaminating fragile musical signals. Internal self-adjusting servo circuitry continuously compensates for temperature fluctuations during extended listening, while an automatic standby function reduces power draw when the system rests between album sides.Authorized Dealer:We are an authorized dealer for Rega. Purchasing from a trusted brand partner ensures your equipment includes full manufacturer's warranty coverage and expert technical guidance whenever you wish to refine your listening setup.Key Features: Parallel FET Input Stage: Maintains a quiet background so subtle acoustic details emerge clearly from the groove. Adjustable Resistive Loading: Matches cartridge requirements precisely from 70 Ω to 400 Ω to deliver natural tonal balance. Selectable Capacitance Settings: Fine-tunes high-frequency response between 1000 pF and 4300 pF for smooth treble extension. Dual Gain Settings: Accommodates low-output cartridges with switchable 63.5 dB or 69.3 dB amplification. Shielded Aluminum Chassis: Shields delicate phono signals from stray electrical and radio frequency interference. Thermal Servo Control: Stabilises circuit performance throughout hours of continuous record playback. Eco Standby Mode: Conserves energy by dropping power consumption to just 0.4 W when inactive. Technical Specifications: Product Type: Dedicated moving coil phono stage Circuit Design: Two-stage all-analogue Class A amplifier Input Load Resistance: 70 Ω, 100 Ω, 150 Ω, 400 Ω Capacitive Load: 1000 pF, 4300 pF Gain Settings: 69.3 dB (0 dB Setting I), 63.5 dB (-6 dB Setting II) at 1 kHz RIAA Accuracy: Better than ±0.2 dB (65 Hz to 70 kHz, 100 kΩ load) Frequency Response: 17.5 Hz (-3 dB) to 100 kHz (-0.2 dB) Total Harmonic Distortion (THD): 0.03% Power Consumption: 20 W (0.4 W in Standby) Dimensions (W x H x D): 220 x 80 x 330 mm Weight: 2.9 kg