Professional Marantz repair and restoration services for all models from 1963 to 2024. We specialize in vintage silver-face receivers, legendary tuners, modern SACD players, and high-end integrated amplifiers. Our expert technicians provide capacitor replacement, precision alignment, troubleshooting, and complete restoration services.
Why Audiophiles Choose Us: With 33 years of experience, we bring deep expertise to every Marantz unit, from the rarest 1960s tuners to the latest reference SACD players.
1970s "Silver Face" Era - Vintage Receiver & Tuner Restoration
The legendary silver-face era represents the pinnacle of classic Marantz design and engineering. These receivers and tuners are highly sought after by collectors and audiophiles worldwide. We provide full recap, alignment, power supply restoration, and LED bulb replacement.
Stereo Receiver / Integrated Amplifier-Tuner
Years: 1970–1975
Expert Model 19 Restoration: Unique "receiver-plus" design with separate preamp, power amp, and tuner sections in one chassis. Known for its massive build quality and warm, tube-like solid-state sound. Our service includes complete electrolytic capacitor replacement, power supply rebuild, tuner alignment (including the legendary Marantz RF front end), and full transistor testing. Common issues we address: noisy selector switches, drifting FM, aging power supply caps, and intermittent output relay. Sought after by serious collectors.
Stereo Receiver
Years: 1973–1976
Model 2230 Specialist Service: 30-watt per channel classic, famous for its exceptional phono stage and warm "Midwest sound." Perfect for smaller listening rooms. Our restoration includes full recap using high-quality audio-grade capacitors, bias and offset adjustment, tuner alignment, and LED lamp upgrade (optional). Common fixes: scratchy volume pots, dead dial lights, and intermittent protection circuit. A favorite among vintage enthusiasts.
Stereo Receiver
Years: 1971–1975
Legendary Model 2270 Restoration – The Holy Grail: 70-watt receiver that defined the silver-face era. Renowned for its authoritative bass, detailed midrange, and beautiful blue dial. Our comprehensive service includes full recap of power supply and audio boards, replacement of known noisy transistors (2SC458, 2SC871), FM alignment with oscilloscope, and relay/switch rebuild. We solve: hum in one channel, weak FM stereo, intermittent audio, and high DC offset. Fully restored 2270s are prized by audiophiles worldwide.
Stereo Receiver
Years: 1974–1977
Model 2325 Professional Service: 125-watt per channel monster, featuring dual power supplies and massive heat sinks. One of the most powerful receivers Marantz ever produced. Our restoration includes full power supply capacitor replacement, output transistor matching, bias recalibration, and tuner section alignment. Common issues we fix: overheating, protection mode, burned lamps, and worn speaker relays. A true powerhouse for serious listeners.
Stereo Receiver
Years: 1975–1978
Model 30 Restoration – Underrated Classic: 45-watt receiver with exceptional build quality and a distinctive "tilt face" design. It shares circuitry with higher-end models but is more affordable. Our service includes full capacitor replacement, tuner alignment, and cleaning of all controls. Known issues: noisy preamp stage, dim tuner dial, and intermittent headphone jack. An excellent entry point into vintage Marantz ownership.
Stereo Receiver
Years: 1968–1972
Early Solid-State Gem – Model 33 Service: One of the first solid-state receivers from Marantz, featuring a unique oscilloscope display (where equipped). Our specialized restoration includes rebuilding the power supply, replacing all electrolytic and tantalum capacitors, oscilloscope calibration (if present), and full transistor testing. Common repairs: failing scope tube, distorted audio, weak FM sensitivity. Rare and collectible – we provide museum-quality restoration.
Modern & High-End Marantz Service
Beyond vintage, TEK Media Group is fully equipped to service modern Marantz high-end components: SACD players, reference integrated amplifiers, and KI Signature series.
Reference Integrated Amplifier
Years: 2018–2024
PM-10 Specialist Repair – Modern Flagship: Dual-mono, fully balanced design with 200W per channel. Our service includes power supply diagnostics, DAC board troubleshooting, firmware checks, output stage biasing, and component-level repair. Issues we resolve: one channel dropout, protection errors, display glitches, and hum from ground loops. We use genuine Marantz-sourced parts when needed. Serving discerning audiophiles.
Reference SACD / CD Player
Years: 2008–2014
SA-7S3 Precision Service: High-end disc player with proprietary DAC and analog output stage. We offer laser pickup replacement, servo calibration, DAC board repair, capacitor replacement in power supply, and transport mechanism overhaul. Common problems: skipping discs, no SACD playback, display fading, digital lock issues. Our restoration returns this reference player to original performance.
SACD / CD Player & USB DAC
Years: 2017–2023
SA-10 Flagship Restoration & Repair: Ultimate Marantz digital source with 1-bit DSD architecture. Our expert service includes laser replacement, mechanism realignment, power supply capacitor upgrade, USB input repair, and full DAC calibration. Common failures we fix: disc reading errors, distorted output on analog, dead front display, intermittent USB connection. We also offer clock stability upgrades.
Additional Classic Silver-Face Receivers & Tuners
Our comprehensive vintage restoration covers the full Marantz catalog, including these highly sought-after models.
FM Tuner
Years: 1963–1973
Legendary 10B Service: Considered the finest FM tuner ever built. Our specialized alignment, capacitor replacement, and oscilloscope tuning bring back its magical soundstage and exceptional RF performance. The Model 10B remains the benchmark for analog tuner design.
Stereo Receiver
Years: 1975–1977
250W Beast Restoration: The ultimate collectible Marantz receiver. Massive 250-watt integrated unit with preamp, tuner, and power amplifier. Extremely rare and sought after. Our service includes complete capacitor replacement, power supply restoration, amplifier section servicing, tuner alignment, and cosmetic restoration. Common failures: power supply capacitors, output transistors, protection circuits.
Stereo Receiver
Years: 1976–1980
300W King of Marantz: King of all Marantz receivers. 300-watt powerhouse with dual power supplies. The most expensive and sought-after vintage model. Only produced for a few years. Complete restoration includes dual power supply overhaul, all electrolytic capacitor replacement, output stage service, meter calibration, and full alignment. Investment-grade restoration available.
Stereo Receiver
Years: 1974–1977
Classic 75W – Model 2275 Restoration: Highly sought-after for its warm, classic Marantz sound. 150-watt receiver known for exceptional audio quality. One of the most popular collector models. Service includes capacitor replacement, bias adjustment, alignment, and restoration to original specifications. Known issues: dial lamps, selector switches, aging capacitors.
Stereo Receiver
Years: 1978–1980
Model 2285B Professional Service: 185-watt receiver representing the peak of Marantz silver face design. Known for clean power output and reliable performance. Full service includes electrolytic capacitor replacement, output transistor testing, protection circuit verification, and complete alignment.
