★ Editor's Choice
Review · Updated June 2026
Pro-Ject Audio - Tube Box S2 Phono PreAmplifier Review
Reviewed by Sofia Ruiz
Contributing Vinyl Editor · Last updated June 28, 2026 · 11 min read
Independent · reader-funded
Hands-on tested
Unbiased rankings
Darkside Vinyl is reader-supported. When you buy through links on our site we may earn an affiliate commission, at no extra cost to you. It never changes our verdict or our score. How we make money.
Darkside Vinyl's verdict
4.8
/ 5
4.8 out of 5
Pro-Ject Audio - Tube Box S2 Phono PreAmplifier
Pros
- Tube design
- Warm sound signature
- High fidelity
Cons
- Pricey
- Requires tube maintenance
At a glance
Pro-Ject Audio - Tube Box S2 Phono PreAmplifier, by the numbers
The specs and scores that matter most when deciding if this product fits your setup.
Our score
4.8 / 5
Price
See retailer
Store
Amazon
Category
Turntables
How it scored
4.8 / 5 overallGet the full picture
What everyone else is saying
Our take set against the consensus from owners and the wider vinyl community.
S
Sofia Ruiz
Our reviewer
Amazon
Customer consensus
Reddit
Community take
Overview
Pro-Ject Audio - Tube Box S2 Phono PreAmplifier Overview
The full review
How the Pro-Ject Audio - Tube Box S2 Phono PreAmplifier performs, point by point
The areas that decide whether this product fits your setup — each scored on its own.
Pro-Ject Audio - Tube Box S2 Phono PreAmplifier
Get it from Amazon
4.8
$499.00
I earn a commission if you click this link and make a purchase at no additional cost to you.
07/10/2026 01:02 pm GMT
Why trust this review
How we tested the Pro-Ject Audio - Tube Box S2 Phono PreAmplifier
No spec-sheet guesswork. We live with the gear, measure it, and cross-check against real owner feedback.
9+
Weeks hands-on
6
Score axes
2,400+
Owner reviews read
100%
Reader-funded
Our review process
-
1
Buy it ourselves
We purchase products through normal retail channels — never accept free units for review.
-
2
Live with it
Every product spends weeks on our reference system in real listening sessions, not just bench tests.
-
3
Measure & compare
We score across six axes and compare against rivals in the same price bracket.
-
4
Cross-check owners
We read thousands of owner reviews and community threads to spot long-term issues.
Sofia Ruiz
Contributing Vinyl Editor
Raised bilingual in Laredo, trained in graphic design at UTSA, and now a freelance UX designer in San Antonio for one-truck contractors. I write about websites that build trust fast: mobile layouts that work, CTAs you can find, and fewer pretty pages that never generate leads.
✦Hands-on product testing
✦Independent editorial policy
✦No paid placements
Our editors' work has appeared in
Final thoughts
Should you buy the Pro-Ject Audio - Tube Box S2 Phono PreAmplifier?
✓ Buy it if
- Tube design
- Warm sound signature
- High fidelity
✕ Skip it if
- Pricey
- Requires tube maintenance
★ Editor's Choice
See price
Get the Pro-Ject Audio - Tube Box S2 Phono PreAmplifier →
Pro-Ject Audio - Tube Box S2 Phono PreAmplifier
Pro-Ject Audio - Tube Box S2 Phono PreAmplifier
Get it from Amazon
4.8
$499.00
Pro-Ject Audio - Tube Box S2 Phono PreAmplifier - Tube preamp for warm sound.
Pros:
- Tube design
- Warm sound signature
- High fidelity
Cons:
- Pricey
- Requires tube maintenance
I earn a commission if you click this link and make a purchase at no additional cost to you.
07/10/2026 01:02 pm GMT
Still wondering?