


Heritage Audio GRANDCHILD 670 500 Series Vari-MU stereo compressor
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Heritage Audio GRANDCHILD 670 500 Series Vari-MU stereo compressorAfter having shocked and impressed the audio industry with the HERCHILD Model 670 & Model 660, Heritage Audio has now turned to the 500 series format to offer something extremely rare An analog stereo Variable Mu tube compressor in a two space 500 series module! The GRANDCHILD 670 500 is stuffed with 4 6BA6 (5749) NOS tubes, three exclusively designed transformers (one per channel & and one for the Sidechain) and the necessary select components and
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Your Heritage Audio GRANDCHILD 670 500 Series Vari-MU stereo compressor orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.2 ★★★★★
Based on 577 reviews
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Product Reviews
★★★★★ 5
Item perfect
Size: 72PCS
Fat shipping, item as discribed
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
Amazing kit, it has everything you need!
I never really thought about keeping a tire repair kit in my car, until I had a flat in the middle of nowhere. That’s when I got this 54-piece Flat Tire Repair Kit with Air Compressor, and now I wouldn’t travel without it.
The kit has everything you need to patch up a flat quickly and get back on the road, and it’s surprisingly easy to use, even for someone like me who’s never done it before. The air compressor works fast, inflating my tire in just a few minutes, and the tools feel solid and well-made. Value for the money: 10/10
Honestly, this little kit (amazing size) saved me from a stressful situation, and now I tell everyone: just keep one in your car, you never know when you’ll need it!
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Reviewed in the United States on March 6, 2025
★★★★★ 5
Great Kit for ATV's
Great so far, bought to keep in our Four Wheeler in case of flat on the trail.
Pump is great for ATV Purposes not sure about cars and trucks etc.
Ran all 4 tires up to 8 psi from 6 psi in just a few minutes,so it does work great for lower psi use.
Tools are built well and plenty of plugs and other items are provided.
All fits well in supplied case in the back storage of my 2025 Cforce 600 Touring just for reference.
Overall great value for what is included for that time when you need it.
Must have for ATV's!
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Reviewed in the United States on November 12, 2025
★★★★★ 5
Good tire kit
Just what I needed for the sxs
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Reviewed in the United States on May 31, 2026
★★★★★ 4
Good little pump
Works better than expected.
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Reviewed in the United States on May 22, 2026
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