MCINTOSH MC2205 Vintage Stereo Power Amplifier – Professionally Restored – 1-Year Warranty
This listing is for a McIntosh MC2205 vintage stereo power amplifier, professionally inspected, serviced, and tested by HQaudios.
The MC2205 is one of McIntosh’s most legendary solid-state power amplifiers, combining the company’s patented Autoformer output technology with massive power reserves, exceptional reliability, and unmistakable McIntosh craftsmanship. Carefully restored for dependable long-term performance, this amplifier continues to deliver the effortless musicality and authority that have made it a benchmark in high-end audio.
The amplifier has been fully tested under real listening conditions and is ready to pair with your favorite preamplifier and loudspeakers for years of outstanding performance.
Key Highlights
- Professionally inspected and serviced by HQaudios technicians
- Fully tested for clean, stable, and reliable operation
- Legendary McIntosh Autoformer output design
- 200 Watts minimum continuous average power output per channel in stereo operation
- Iconic illuminated blue power meters
- Carefully packed for safe worldwide delivery
- Backed by our 1-Year HQaudios Warranty
Specifications
| Brand | McIntosh |
| Model | MC2205 |
| Type | Vintage Stereo Power Amplifier |
| Power Output | 200 Watts per channel RMS (Stereo); 400 Watts (Mono) |
| Output Load | 1Ω, 2Ω, 4Ω, or 8Ω (Stereo); 0.5Ω, 1Ω, 2Ω, or 4Ω (Mono) |
| Frequency Response | 20Hz – 20kHz (+0 / -0.25dB); 10Hz – 100kHz (+0 / -3dB) |
| Inputs | Stereo RCA Inputs; 0.75V / 2.5V Selectable Sensitivity |
| Speaker Outputs | 1Ω, 2Ω, 4Ω, and 8Ω Autoformer Output Terminals |
| Protection | Power Guard® and Sentry Monitor™ Protection Circuits |
| Dimensions | Approx. 16.2 × 7.1 × 14.5 inches (W × H × D) |
| Weight | Approx. 85 lbs (38.6 kg) net |
| Condition | Restored / Serviced / Tested |
| Warranty | 1-Year HQaudios Warranty |
Sound Character
The McIntosh MC2205 is celebrated for its effortless authority, remarkable transparency, and exceptionally smooth presentation. Delivering a true 200 watts per channel through McIntosh’s patented Autoformer technology, it maintains identical power into 2, 4, or 8-ohm speakers while producing deep, controlled bass, a rich and natural midrange, and extended, silky highs with virtually unlimited headroom.
The amplifier creates an expansive three-dimensional soundstage with outstanding channel separation and dynamic realism. Whether driving demanding floor-standing loudspeakers or highly revealing studio monitors, the MC2205 delivers exceptional control, effortless transient response, and the unmistakably refined McIntosh sound. Combined with its iconic blue watt meters and legendary reliability, it remains one of the most sought-after vintage power amplifiers ever produced.
Cosmetic Condition
The amplifier is in excellent vintage cosmetic condition with only light signs of age consistent with careful ownership. The iconic McIntosh glass front panel, illuminated blue watt meters, chrome chassis, and original controls remain exceptionally well preserved. The unit has been professionally cleaned and detailed while maintaining its authentic vintage appearance. Please review all photos carefully, as they are part of the description.
- Front glass / faceplate: Excellent condition with clean glass, sharp lettering, and bright blue power meters
- Controls and switches: Original McIntosh controls in excellent condition with smooth operation
- Chrome chassis: Clean and well preserved with only minimal signs of normal vintage use
- Meter illumination: Bright, even, and fully functional
- Rear panel: Clean, complete, and well maintained with all RCA inputs, speaker terminals, and Autoformer connections in excellent condition
HQaudios Restoration & Testing Process
Before Restoration
- After decades of service, the McIntosh MC2205’s power supply, power amplifier circuits, output stage, Power Guard circuitry, driver boards, protection circuits, speaker terminals, input connections, and illuminated watt meter system required careful inspection before restoration began.
- For this MC2205, HQaudios placed particular attention on the condition of the power supply, output transistors, driver stage, Power Guard circuitry, Autoformer output stage, protection circuits, input/output connections, speaker terminals, and internal wiring. These components are critical to long-term reliability, power delivery, channel balance, and overall audio performance.
- The amplifier circuits, signal path, illuminated watt meters, Power Guard indicators, front-panel controls, and protection system were also carefully evaluated to determine the amplifier’s overall operating condition before restoration started.
During Restoration
- Based on the inspection results, this MC2205 was restored according to HQaudios’ technical standards while preserving the engineering and performance characteristics that have made this model one of McIntosh’s most respected vintage power amplifiers.
- The power supply, signal path, and internal circuit boards were inspected to support stable and reliable operation. Components that no longer met technical specifications were replaced based on inspection and testing results, while critical solder joints were reinforced to improve operational stability.
- Power output, channel balance, Power Guard operation, meter accuracy, protection circuitry, input sensitivity, and all amplifier functions were tested and calibrated.
- After the technical restoration was completed, the exterior was professionally cleaned and detailed to preserve the MC2205’s original appearance while respecting the authentic character of vintage McIntosh equipment.
After Restoration
- Once restoration was completed, this MC2205 underwent comprehensive functional testing under real operating conditions.
- Power output, frequency response, channel balance, distortion performance, Power Guard operation, watt meter response, protection circuitry, and all audio inputs and speaker outputs were thoroughly tested.
- Finally, the unit underwent several hours of continuous listening tests through a complete vintage audio system to evaluate sound quality, operational stability, dynamic performance, and overall real-world performance.
- Only after successfully meeting HQaudios’ restoration and testing standards was this MC2205 approved and prepared for its next owner.
Video Test & Sound Demo
Please contact us directly if you would like to hear a video test of this unit before purchase.
We are happy to provide additional video, sound demo, or photos upon request.
Suggested Pairing
Combo Discount
Save $100 when purchasing this power amplifier together with a qualifying pair of speakers or another restored vintage audio component from HQaudios.
Please contact us before purchase so we can confirm availability and prepare a combined offer.
Trade-In Program
If you have vintage audio equipment such as receivers, amplifiers, speakers, cassette decks, or reel-to-reel tape decks and would like to upgrade to a restored unit, please contact us.
HQaudios may accept trade-ins toward your purchase depending on the item, condition, and shipping location.
Shipping & Packaging
This power amplifier will be professionally packed by HQaudios for safe delivery. Vintage power amplifiers are heavy and delicate, so we take extra care to protect the glass faceplate, meters, controls, corners, rear terminals, and internal structure during shipment.
- Carefully wrapped and protected
- Heavy-duty box and protective packing materials used
- Extra protection around faceplate, knobs, and corners
- Tracking provided after shipment
- Signature may be required for delivery
1-Year HQaudios Warranty
This unit is backed by our 1-Year HQaudios Warranty covering normal-use functionality related to the service work performed by HQaudios.
If you experience an issue, please contact us first. We are committed to helping our customers and will work with you to resolve the problem in a fair and reasonable way.
The warranty does not cover misuse, improper setup, unauthorized repair, shipping damage caused after delivery, cosmetic wear, or damage from incompatible equipment.
Customer Service
Once your item arrives, if you have questions about setup, preamplifier connection, speaker connection, input sensitivity settings, or general operation, please contact us.
We are happy to help you get the best performance from your vintage audio system.
Important Note for Vintage Audio Buyers
This is a vintage audio component, and minor cosmetic signs of age should be expected.
We do our best to describe and photograph each item accurately. Please review all photos and ask any questions before purchase.
Your satisfaction is important to us. Please contact us first if you need assistance after delivery.













































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