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Highlights

BETA

This feature is in BETA, meaning the algorithms used to provide these results are constantly improving. These results might change.

Quality


Quality control at riverstone means better sound, and longer lasting tubes!

Positive Review

The sound is so much better with the pre-amp.

Positive Review

Just be sure to give them a few minutes to warm up and a few hours of play before you judge the quality.

Neutral Review

Definitely an upgrade in sounds quality from the stock times from china.

Neutral Review

Price


The original china made tubes that came with little dot 1+ were ok, but when tube rolled them with ge riverstone tubes,it's nig...  Read More

Positive Review

Packaging/appearance


Quick shipment, excellent packaging, and the best my cheapo $50 headphone amp ever sounded!

Positive Review

The packaging of these tubes really impressed me.

Positive Review

These were shipped from riverstone audio in excellent packaging with multiple layers of protection and they include a 3 year wa...  Read More

Neutral Review

I ran a test of just plain alexa (which i also use to provide amazon music over wifi to my system) unfiltered, and through the ...  Read More

Neutral Review

Competitiveness


Added to a patio system (90s polk bookshelfs & yamaha amp).

Positive Review

Bought these to upgrade a douk preamp.

Neutral Review

These little jewels took my new headphone amp, a douk p1 bluetooth, to another level.

Neutral Review
Overview
  • How are reviewers describing this item?
    great, better, quality, good and chinese.
  • Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
  • Our engine has discovered that over 90% high quality reviews are present.
  • This product had a total of 492 reviews as of our last analysis date on Oct 14 2020.
Details

BETA

This feature is in BETA, meaning the algorithms used to provide these results are constantly improving. These results might change.

Most positive reviewquestion

the original China made tubes that came with Little Dot 1+ were ok, but when tube rolled them with GE Riverstone tubes,it's nig...  Read More

Least positive reviewquestion

I replaced the tubes that came with FX-Audio Tube-1. Sounds fantastic!

Most authentic reviewquestion

My stereo receiver bit the dust. First the power button broke and fell inside the case. Then the remote went out... Then the su...  Read More

Least authentic reviewquestion

Not enough review data to provide meaningful insight.


Helpful Insights

BETA

This feature is in BETA, meaning the algorithms used to provide these results are constantly improving. These results might change.

    Posted by a reviewer on Amazon

    Riverstone audio also did a fantastic job of shipping these quickly and with a very nice presentation - the tubes were each packaged in their factory cardboard tube with a piece of new foam keeping them snug in each box, then were further wrapped in multiple layers of bubble wrap and placed in another box which was sealed by riverstone to show they have not been tampered with.


    Posted by a reviewer on Amazon

    I had to listen critically for 8 to 10 hours a day, and if i didn't have the highest quality, i could be fired right then and there.


    Posted by a reviewer on Amazon

    There is magic in the tubes blue glow as can be heard in the presence on the cymbals and snares.


    Posted by a reviewer on Amazon

    They were a bit of a pain to get inserted correctly, i had to push firmly to get them into place.


    Posted by a reviewer on Amazon

    I'm betting they'll sound even better after they're burned in.


    Posted by a reviewer on Amazon

    The 6j3s developed an irritating high frequency hiss after extended use, these do not.


    Posted by a reviewer on Amazon

    Be sure the product you are applying these upgrades to actually works.


    Posted by a reviewer on Amazon

    No difference because the douk is a p**p.

Review Count History
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Price History
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