📍 Los Angeles County & Southern California
🔧 30+ Years Experience
🎵 McIntosh Specialist
🏢 Tek Media Group
📋 TECHNICAL DISCLAIMER: The information provided is based on my 30+ years of experience restoring McIntosh MAC 1900 receivers. This equipment contains voltages that can be dangerous. FM alignment requires specialized test equipment. I strongly recommend that only qualified technicians perform internal service. Proceed at your own risk.
⚠️ IMPORTANT – FROM MY SERVICE BENCH: The McIntosh MAC 1900 is a highly regarded solid-state receiver from the early 1970s. Many units suffer from failed electrolytic capacitors that can cause noise, hum, and potential damage to output transistors. I have the proper equipment and expertise to restore these classic receivers to original specifications.
About the McIntosh MAC 1900 & My Service
The McIntosh MAC 1900 is a landmark solid-state receiver from the early 1970s, representing the pinnacle of McIntosh's receiver technology. Produced from 1972 to 1975, this receiver delivers 55 watts per channel and features a sensitive FM tuner with a 5-gang front end, built-in Dolby FM noise reduction, and McIntosh's legendary Autoformer output transformers. With its classic glass front panel, brass chassis, and unmistakable McIntosh styling, the MAC 1900 is highly sought after by collectors and audiophiles who want vintage McIntosh sound with solid-state reliability.
I'm the owner and lead technician at Tek Media Group, and I've been restoring McIntosh solid-state equipment since 1994. I have extensive experience with the MAC 1900 and understand its unique architecture, including the advanced FM tuner, the high-performance amplifier section, and the Dolby FM circuitry. Every receiver that comes to my bench receives meticulous attention to preserve its legendary performance and value.
✅ WHY TRUST TEK MEDIA GROUP WITH YOUR MAC 1900:
- 30+ Years of McIntosh Solid-State Experience
- Specialized Knowledge of MAC 1900 Architecture & Dolby FM
- Complete FM Alignment with Professional Test Equipment
- Power Amplifier Restoration & Bias Adjustment
- Dolby FM Circuitry Restoration & Calibration
- Every Receiver Gets My Personal Attention – No Assembly Line
- Full Power Supply Rebuild & Capacitor Replacement
- Output Transistor Testing & Matching
- 90-Day Warranty on All Work
- Local Service Throughout Southern California
Restoration Services I Offer
🔧 Diagnostic & Evaluation Complete assessment with detailed report, sensitivity measurement, power output test
⚡ Power Supply Restoration Full recap of electrolytic capacitors, rectifier replacement, voltage verification
🎛️ Full Capacitor Replacement Replace all aged electrolytic, tantalum, and ceramic capacitors with high-quality modern equivalents
🔋 Transistor Testing & Replacement Test all transistors, replace failed or noisy units with modern equivalents
📻 FM Alignment Full FM alignment with professional test equipment (5-gang front end, IF, Detector)
🎛️ Dolby FM Restoration Restore and calibrate the Dolby FM noise reduction circuitry
🔊 Power Amplifier Restoration Bias adjustment, capacitor replacement, output transistor verification
🏆 COMPLETE FULL RESTORATION All services above – your receiver will perform to or exceed original specifications
💡 COMPLETE RESTORATION INCLUDES: Full power supply recap • All electrolytic and tantalum capacitors • Transistor testing and replacement • Full FM alignment • Dolby FM calibration • Power amplifier rebuild • Bias adjustment • Clean controls • Sensitivity verification • Power output measurement • 90-day warranty
The McIntosh MAC 1900 – Solid-State Excellence
🎵 McINTOSH MAC 1900 KEY FEATURES:
- Power Output: 55 watts per channel (solid-state)
- Autoformer Outputs: McIntosh's legendary output transformers for stable 4/8/16 ohm operation
- FM Tuner: Advanced 5-gang front end for superior sensitivity and selectivity
- Dolby FM: Built-in Dolby FM noise reduction for quieter FM reception
- Glass Front Panel: Classic McIntosh aesthetic with backlit glass and meters
- Dual Meters: Signal strength and center tuning meters
- High Filter: 7kHz high-cut filter for noisy FM reception
- Stereo Beacon: Pilot lamp indicator for stereo reception
⚠️ IMPORTANT – MAC 1900 SPECIFIC CONSIDERATIONS: The MAC 1900 uses electrolytic and tantalum capacitors that are known to fail with age. Failed capacitors can cause noise, hum, and can damage output transistors. The Dolby FM circuitry uses specialized ICs and capacitors that must be properly restored for correct operation. I have the specific expertise and test equipment to service this advanced receiver.
Service Area – All of Southern California
I proudly serve audiophiles, collectors, and studios throughout Southern California. My shop is located in Los Angeles County, and I offer local pickup and delivery services for clients across the region.
📌 CITIES I SERVE IN SOUTHERN CALIFORNIA:
Los Angeles County
Los Angeles Burbank Glendale
Santa Monica Hollywood North Hollywood
Pasadena Long Beach San Fernando Valley
Beverly Hills West Hollywood Culver City
Torrance Redondo Beach Manhattan Beach
Hermosa Beach El Segundo Inglewood
Hawthorne Lancaster Palmdale
Santa Clarita Valencia Calabasas
Agoura Hills Westlake Village Malibu
San Pedro Wilmington Downey
Norwalk Cerritos Lakewood
Orange County
Santa Ana Anaheim Irvine
Huntington Beach Costa Mesa Newport Beach
Laguna Beach Fullerton Orange
Tustin Fountain Valley Westminster
Garden Grove Buena Park La Habra
Brea Yorba Linda Placentia
San Clemente San Juan Capistrano Dana Point
Mission Viejo Lake Forest Aliso Viejo
Laguna Niguel Rancho Santa Margarita Cypress
San Diego County
San Diego La Jolla Del Mar
Encinitas Carlsbad Oceanside
Vista San Marcos Escondido
Poway Chula Vista National City
El Cajon La Mesa Santee
Coronado Imperial Beach Solana Beach
Ventura County
Ventura Oxnard Thousand Oaks
Camarillo Simi Valley Moorpark
Santa Paula Fillmore Ojai
Port Hueneme Westlake Village Newbury Park
Riverside County
Riverside Palm Springs Temecula
Murrieta Corona Moreno Valley
Hemet Perris Lake Elsinore
Menifee Wildomar Canyon Lake
Indio Coachella La Quinta
San Bernardino County
San Bernardino Ontario Rancho Cucamonga
Redlands Victorville Hesperia
Fontana Rialto Colton
Upland Montclair Chino
Chino Hills Yucaipa Big Bear Lake
Apple Valley Barstow Needles
Other Southern California Areas
Santa Barbara Goleta San Luis Obispo
Pismo Beach Bakersfield Lancaster
Palmdale Tehachapi Ridgecrest
If you don't see your city listed, please contact me – I serve the entire Southern California region. I can arrange local pickup and delivery for most areas. Call (818) 244-4440 to discuss your restoration needs.
Tek Media Group — Professional Audio Restoration Since 1994
📞 (818) 244-4440 | ✉️ service@tekmediagroup.com
Serving Los Angeles, Orange County, San Diego, Riverside, San Bernardino, Ventura, Santa Barbara, and all of Southern California
Specializing in McIntosh, Marantz, Scott, Fisher, and vintage audio restoration
McIntosh MAC 1900 Specialist • Dolby FM Expert • Solid-State Receiver Specialist
