Marantz 4220 Quad Ultimate Upgrade Kit Genuine Parts Restoration
Ultimate Receiver Kit for Vintage Audio EnthusiastsRediscover the unparalleled sound quality of your youth and go beyond with our comprehensive Ultimate Vintage Audio Restoration Kit. This all-inclusive kit includes everything from our Deluxe Kit to restore your classic receiver to its former glory and adds extra customization options for tuning sections and upgraded trimpots for critical internal audio adjustments when applicable.To find the Deluxe kit on eBay, simply search for your make and model along with the keyword 'Deluxe.'Key features of our Ultimate kit:All the benefits of our Deluxe Kit, designed to fit specific models of classic receivers from iconic brands like Marantz, Pioneer, Sansui, and moreAdditional parts for tuning sections (FM or AM) and upgraded trimpots for critical internal audio adjustments when applicableGenuine parts sourced from authorized distributors - no cheap knock-offs or counterfeit componentsBest-in-class capacitors from reputable manufacturers like Nichicon, Panasonic, and Wima, along with reliable transistors from OnSemiNew relay (when applicable and available) and replacement filter capacitors for the power supplyDetailed documentation in PDF format, including a parts list, service manual, and our comprehensive 17-page hints and instructions PDFAdditional support:Willing to answer specific questions related to the restoration processExtensive Hints and Instructions PDF with troubleshooting hints and links to outside resourcesWarranty and returns:Defective or incorrect parts will be replaced, or a partial refund offered at our discretionFull returns accepted within the 30-day period for any reasonOur Ultimate Vintage Audio Restoration Kit takes your restoration project to the next level, providing enhanced sound quality, performance, and customization options for your beloved vintage receiver. Don't miss the opportunity to elevate your vintage audio experience to new heights. Order now and embark on a truly exceptional restoration journey! Quality PartsAll signal path caps 4.7uf or lower are replaced by sonically superior film caps, most by WimaAll transistors are made by OnSemiElectrolytic caps are primarily Nichicon. Panasonic, United Chem-Con and other reputable brands are also employedRelays are primarily OmronTrimmer are made by BournsAuthentic PartsHIghest QualityNo Counterfeit PartsProcured from the Manufacture or Authorized distributorsUltimate Receiver Kits include the following*Replacement caps for every electrolytic or tantalum cap in the unitReplacement trimmers for critical audio adjustments like bias and dc offset (where applicable)Replacement Relay*Not all units use a relay, not all vintage relays have a modern replacement, and finally not all vintage relays can be ascertained from available dataKits are priced accordingly, you can view our parts list to see if your kit includes the relay(s).Replacement transistors and diodes for those we now know were problematic*Not all transistors and diodes are replaced, nor should they beOur Parts List shows all the transistors and diodes includedNeed a Kit for Something Not Yet Listed? Contact us________More Details____ Quality PartsAll signal path caps 4.7uf or lower are replaced by sonically superior film caps, most by WimaAll transistors are made by OnSemiElectrolytic caps are primarily Nichicon. Panasonic, United Chem-Con and other reputable brands are also employedNichicon caps used are primarily from the UPW and UKL linePanasonic caps used are primarily from the FC & FR lineRelays are primarily OmronTrimmer are made by BournsAll Parts Are Procured Directly through the Manufacture or via Authorized DistributorsHIghest QualityNo Counterfeit PartsUltimate Kits include the following*Replacement Caps for every electrolytic or tantalum cap in the unit, including tuner sectionsUnless otherwise noted, this includes any off board capacitors including the Filter and Coupling CapsOff Board caps may be smaller in diameter than the originals, our documentation provide a few easy options for installing theseReplacement Trimmers for critical audio adjustments like bias and dc offset (where applicable in amplifiers and receivers). Other Kit supplier do not include these. Replacement Relay where applicable*Not all units use a relay, not all vintage relays have a modern replacement, and finally not all vintage relays can be ascertained from available dataKits are priced accordingly, you can view our parts list to see if your kit includes the relay(s).Replacement Transistors and diodes for those we now know were problematic*Not all transistors and diodes are replaced, nor should they be. Our Parts List shows all the transistors and diodes includedMany units made after around 1982 have few or none of these problematic transistorsIncluded Documentation (PDF format)Our Parts List (separated by board and part type - easy to comprehend)The Service Manual (or at least the schematic if we can't locate the full service manualOur exclusive and extensive Hints & Instructions DocumentThe Owner's Manual (if available)The Kit Parts are separated and bagged by boardShipped promptly in quality boxesDocumentation links are sent via message, email and included in the kitNeed a Kit for Something Not Yet Listed?Have Questions?Contact us
Specifications
| Return Shipping Will Be Paid By | Seller |
| All Returns Accepted | Returns Accepted |
| Item Must Be Returned Within | 30 Days |
| Refund Will Be Given As | Money Back |
| Brand | Marantz |
| Model | 4220 |
Ultimate Receiver Kit for Vintage Audio EnthusiastsRediscover the unparalleled sound quality of your youth and go beyond with our comprehensive Ultimate Vintage Audio Restoration Kit. This all-inclusive kit includes everything from our Deluxe Kit to restore your classic receiver to its former glory and adds extra customization options for tuning sections and upgraded trimpots for critical internal audio adjustments when applicable.To find the Deluxe kit on eBay, simply search for your make and model along with the keyword ‘Deluxe.’Key features of our Ultimate kit:All the benefits of our Deluxe Kit, designed to fit specific models of classic receivers from iconic brands like Marantz, Pioneer, Sansui, and moreAdditional parts for tuning sections (FM or AM) and upgraded trimpots for critical internal audio adjustments when applicableGenuine parts sourced from authorized distributors – no cheap knock-offs or counterfeit componentsBest-in-class capacitors from reputable manufacturers like Nichicon, Panasonic, and Wima, along with reliable transistors from OnSemiNew relay (when applicable and available) and replacement filter capacitors for the power supplyDetailed documentation in PDF format, including a parts list, service manual, and our comprehensive 17-page hints and instructions PDFAdditional support:Willing to answer specific questions related to the restoration processExtensive Hints and Instructions PDF with troubleshooting hints and links to outside resourcesWarranty and returns:Defective or incorrect parts will be replaced, or a partial refund offered at our discretionFull returns accepted within the 30-day period for any reasonOur Ultimate Vintage Audio Restoration Kit takes your restoration project to the next level, providing enhanced sound quality, performance, and customization options for your beloved vintage receiver. Don’t miss the opportunity to elevate your vintage audio experience to new heights. Order now and embark on a truly exceptional restoration journey! Quality PartsAll signal path caps 4.7uf or lower are replaced by sonically superior film caps, most by WimaAll transistors are made by OnSemiElectrolytic caps are primarily Nichicon. Panasonic, United Chem-Con and other reputable brands are also employedRelays are primarily OmronTrimmer are made by BournsAuthentic PartsHIghest QualityNo Counterfeit PartsProcured from the Manufacture or Authorized distributorsUltimate Receiver Kits include the following*Replacement caps for every electrolytic or tantalum cap in the unitReplacement trimmers for critical audio adjustments like bias and dc offset (where applicable)Replacement Relay*Not all units use a relay, not all vintage relays have a modern replacement, and finally not all vintage relays can be ascertained from available dataKits are priced accordingly, you can view our parts list to see if your kit includes the relay(s).Replacement transistors and diodes for those we now know were problematic*Not all transistors and diodes are replaced, nor should they beOur Parts List shows all the transistors and diodes includedNeed a Kit for Something Not Yet Listed? Contact us________More Details____ Quality PartsAll signal path caps 4.7uf or lower are replaced by sonically superior film caps, most by WimaAll transistors are made by OnSemiElectrolytic caps are primarily Nichicon. Panasonic, United Chem-Con and other reputable brands are also employedNichicon caps used are primarily from the UPW and UKL linePanasonic caps used are primarily from the FC & FR lineRelays are primarily OmronTrimmer are made by BournsAll Parts Are Procured Directly through the Manufacture or via Authorized DistributorsHIghest QualityNo Counterfeit PartsUltimate Kits include the following*Replacement Caps for every electrolytic or tantalum cap in the unit, including tuner sectionsUnless otherwise noted, this includes any off board capacitors including the Filter and Coupling CapsOff Board caps may be smaller in diameter than the originals, our documentation provide a few easy options for installing theseReplacement Trimmers for critical audio adjustments like bias and dc offset (where applicable in amplifiers and receivers). Other Kit supplier do not include these. Replacement Relay where applicable*Not all units use a relay, not all vintage relays have a modern replacement, and finally not all vintage relays can be ascertained from available dataKits are priced accordingly, you can view our parts list to see if your kit includes the relay(s).Replacement Transistors and diodes for those we now know were problematic*Not all transistors and diodes are replaced, nor should they be. Our Parts List shows all the transistors and diodes includedMany units made after around 1982 have few or none of these problematic transistorsIncluded Documentation (PDF format)Our Parts List (separated by board and part type – easy to comprehend)The Service Manual (or at least the schematic if we can’t locate the full service manualOur exclusive and extensive Hints & Instructions DocumentThe Owner’s Manual (if available)The Kit Parts are separated and bagged by boardShipped promptly in quality boxesDocumentation links are sent via message, email and included in the kitNeed a Kit for Something Not Yet Listed?Have Questions?Contact us
