McIntosh Receiver Model |
Approximate Number of Capacitors to Replace |
Notes |
MAC 1700 |
~30–40 |
Includes electrolytic capacitors across power supply, preamp, and amplifier boards. Three multi-section can capacitors (part #066-093) contain multiple sections (e.g., 200µF/500µF). Each can may require replacing with individual capacitors or a rebuild kit. |
MAC 1900 |
~40–50 |
Full recap includes power supply, preamp, and main amplifier boards. Typically involves replacing all electrolytic capacitors. Exact count depends on whether signal path film capacitors are also replaced. |
MAC 4100 |
~80-100+ |
Similar to MAC 4100 in complexity. |
MAC 4200 |
~90-110+ |
Includes electrolytic capacitors on power supply, preamp, and power amp boards. Also involves replacing RCA jack capacitors and potentially others for optimal performance. |
MAC 4275 |
~90-110+ |
Solid-state receiver, expect a high number of electrolytics throughout the various stages |
MAC 4300V |
~100-120+ |
A very full-featured receiver with video switching capabilities, indicating a high component count. This complexity translates to a substantial number of electrolytic capacitors requiring replacement for a comprehensive restoration. |
MAC 5200 |
~100-120+ |
While a more modern design compared to the 70s units, it's still vintage and will contain a considerable number of electrolytic capacitors, especially in the power supply and audio sections. |
MAC 6700 |
Fewer required than vintage units (typically focus on power supply) |
This is a much newer, modern solid-state unit. Capacitors are generally more reliable, but long-term heavy use can still necessitate some replacements, primarily in the power supply section. Full "shotgun" recaps are less common than on older vintage units. |
MAC 7200 |
Fewer required than vintage units (typically focus on power supply) |
Similar to the MAC 6700, being a contemporary model. Electrolytic capacitor issues are less prevalent than in units from the 70s and 80s, but still possible with very long-term use, particularly in critical power supply filtering. |
MA6100 |
~40–50 |
Full rebuild involves replacing all electrolytic capacitors across power supply and audio boards. Can capacitors may be retained if still in spec, but small signal capacitors are often replaced. |
C28 (Preamp) |
~30–40 |
As a preamp, it has fewer capacitors than integrated receivers but requires a full recap of power supply and audio boards for restoration. Buzzing issues often point to power supply caps. |
MQ102 (Equalizer) |
~20–30 |
Recap kit focuses on electrolytic capacitors. Exact count depends on the specific board configuration, but typically fewer than full receivers. |
MA-5100 (Solid-State) |
30–40 |
Early SS, prone to leaky caps |
MA-6100 |
35–45 |
Includes small electrolytics in signal path |
MAC-1700 |
25–35 |
Fewer caps than later models |
MAC-1900 |
30–40 |
Similar to 1700 but more complex |
MAC-4100 |
40–50 |
More advanced, additional circuits |
MAC-4200 |
45–55 |
Higher part count than 4100 |
MAC-4300 |
50–60 |
Complex tuner & amp sections |
MA-6200 |
40–50 |
More filtering & protection circuits |
MA-6900 |
60–70 |
High-end integrated, many small caps |
Model |
Capacitor Count |
C22 |
10-15 |
Power supply, signal path, and tone controls |
MC2100 |
14-16 |
8-10 x 1000uF/50V, 2-4 x 100uF/100V, 2 x 10uF/63V |
MC2105 |
16-18 |
10-12 x 1000uF/50V, 2-4 x 100uF/100V, 2 x 10uF/63V |
MC2300 |
18-20 |
12-14 x 1000uF/50V, 4 x 100uF/100V, 2 x 10uF/63V |
MC250 |
10-12 |
6-8 x 1000uF/50V, 2 x 100uF/100V, 2 x 10uF/63V |
MC2505 |
12-14 |
8-10 x 1000uF/50V, 2 x 100uF/100V, 2 x 10uF/63V |
MC275 |
14-16 |
8-10 x 2000uF/50V, 2-4 x 100uF/100V, 2 x 10uF/63V |
MC275 V |
16-18 |
10-12 x 2000uF/50V, 2-4 x 100uF/100V, 2 x 10uF/63V |
MAC4100 |
15-18 |
Power supply, signal path, and tone controls |
MA6200 |
20-25 |
Power supply, signal path, and tone controls |
MC7205 |
20-22 |
12-14 x 1000uF/50V, 4 x 100uF/100V, 2-4 x 10uF/63V |
MC7300 |
18-20 |
10-12 x 2000uF/50V, 4 x 100uF/100V, 2-4 x 10uF/63V |