1966 Supro s6420 Thunderbolt

Marsoni

M251S

$900.00

Get it in 3 business days with 1 day shipping. Friday, May 29

1966 Supro s6420 ThunderboltFor your consideration, Garrett Park Guitars presents this 1966 Supro s6420 Thunderbolt Amplifier. This s6420 was one of the last few made before Supro discontinued the line. As such, this amp features a more solidly braced baffle and a solid state rectifier that Supro used to replace the 5U4 tube used in earlier models, effectively tightening up the low end on the amp. The amp itself is in original condition save for a replaced 3 prong power cord and

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So far I haven’t really got to get a feel of it. I will say it came smelling very strongly. I’ve had it now for 3 days & it still has a smell. I let it sit out for 24 hours, with the window opened but it still has an odd scent & once I put it on my bed it’s still smelling strong. It’s kind of hard to focus on my comfort when the smell is very odd & foul but aside from that. The reviews are on point in regards to its softness.

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Reviewed in the United States on May 19, 2026

Verified Purchase

Carla

West Palm Beach, US

★★★★★ 5

This is beyond awesome!

Color: Green Bamboo(2300gsm), Size: Queen

I have Airbnb properties and I have bought all sorts of bed toppers. Nothing that I have ever bought has been THIS perfect! Anything with polyester is going to fail you. This one is exactly what I was hoping for which is ONLY shredded memory foam that will last and give you what you want for a cloud like experience!! I just got delivery of this one and unpacked it! It is above and beyond anything I could hope for! It is 100% shredded memory foam through and through, very nice and thick!! It's extremely well made and well packaged. I am totally thrilled with this bed topper! No more experimenting with my purchases anymore.. and sending them back when it's nothing like. I hope. This one is EVERYTHING! YOU HAVE GOT TO GET THIS AND YOU WON'T BE SORRY!

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Reviewed in the United States on May 19, 2026

Verified Purchase

Julian pedraza

New York, US

★★★★★ 5

Fits and Comfortable

Color: Green Bamboo(2300gsm), Size: Full 54x75in

I so love this mattress it fits my mattress and it's soft and comfortable..

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Reviewed in the United States on May 21, 2026

Verified Purchase

LRodzV

Lexington, US

★★★★★ 5

Like sleeping on a cloud!

Color: Green Bamboo(2300gsm), Size: Queen, Color: Green Bamboo(2300gsm), Size: Queen

This mattress topper exceeded my expectations. It's very comfortable, provides excellent support, and helps relieve pressure points while I sleep. The foam conforms well to the body without feeling too soft, and the cover feels cool and pleasant. Since using it, I sleep much better and wake up more comfortable. Excellent quality for the price!

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Reviewed in the United States on May 30, 2026