Boss
Boss Katana-50 Gen 3
$349.99
Best Guitar Amplifiers · head-to-head
Boss Katana-50 Gen 3 vs Positive Grid Spark 2
A sourced, side-by-side comparison. Positive Grid Spark 2 is cheaper at $349. Every spec and price links to its source.
Positive Grid
Positive Grid Spark 2
$349Cheaper
Which is better: the Boss Katana-50 Gen 3 or Positive Grid Spark 2?
The Positive Grid Spark 2 wins 1 of the 1 specs we compare head to head; the other wins 0. The Positive Grid Spark 2 is the cheaper at $349. The Positive Grid Spark 2 both leads on specs and costs less — the straightforward pick.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Boss Katana-50 Gen 3 | Positive Grid Spark 2 |
|---|---|---|
| US price | $349.99 | $349 |
| Brand | Boss | Positive Grid |
| Released | — | — |
| Amplifier type | solid-state | modeling |
| Power watts | 50 | 50 |
| Speaker config | 1x12 | 2x4 |
| Channels | 2 | — |
| Form factor | combo | combo |
| Onboard effects | Yes | Yes |
| Effects loop | No | No |
| Direct out | Yes | Yes |
| Headphone out | Yes | Yes |
| Weight (lb) | 25 | 12.125 |
Sources — Boss Katana-50 Gen 3: boss.info (verified 2026-07-11). Positive Grid Spark 2: positivegrid.com (verified 2026-07-11).
What's the difference between the Boss Katana-50 Gen 3 and Positive Grid Spark 2?
Where the two actually differ on the specs we track (3 of 10). Matching specs are omitted.
- Amplifier type: Boss Katana-50 Gen 3 solid-state vs Positive Grid Spark 2 modeling
- Speaker config: Boss Katana-50 Gen 3 1x12 vs Positive Grid Spark 2 2x4
- Weight (lb): Boss Katana-50 Gen 3 25 vs Positive Grid Spark 2 12.125
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Boss Katana-50 Gen 3
Only one whitelisted tester, MusicRadar, published a hands-on review covering the Katana 50 Gen 3; it is positive but qualitative with no lab measurements. Praised for clearer, more detailed and more responsive tone and the new 'Pushed' voicing; the sole gripe is that Bluetooth is a paid optional extra rather than built-in. (1 sourced review.)
Praised: Clearer, more detailed and responsive tone versus the previous generation; New 'Pushed' voicing between Clean and Crunch became the reviewer's favourite; Familiar, easy-to-navigate control layout.
Flagged: Bluetooth is a paid optional extra (dongle ~£45) rather than built-in.
Positive Grid Spark 2
No sourced tester review yet.