M-Audio
BX4
Measured · medium quality4.5″ 2-way active studio monitor with a rear port. Typical price €99 per pair.
Check it against your roomAnswer five questions and see where it ranks for you.
Fit at a glance
From the same rules the quiz uses, for mixing at a normal level with room for peaks.
| Room | Woofer size | Loud enough up to |
|---|---|---|
| Small (about 10 m²) | Fits | Unknown (no max level from the maker) |
| Medium (about 18 m²) | On the small side | Unknown (no max level from the maker) |
| Large (about 30 m²) | On the small side | Unknown (no max level from the maker) |
Measurements
| Preference score (with sub) | 6.03 |
| Bass, −6 dB | 64 Hz |
| Measurement quality | Medium |
Measurement: other sources, via Spinorama. Spinorama page
Similar monitors in the same price range
Monitors from €64 to €149 per pair, closest in price and woofer size first.
| Monitor | Pair | Woofer | Port | Max level | Bass −6 dB | Pref. score | Room correction |
|---|---|---|---|---|---|---|---|
| M-Audio BX4 (this one) | €99 | 4.5″ | Rear | — | 64 Hz | 6.03 | — |
| PreSonus Eris 3.5 (2nd Gen) | €97 | 3.5″ | Rear | 98 dB | 60 Hz | 4.17 | — |
| Mackie CR3.5 | €89 | 3.5″ | Rear | — | 63 Hz* | — | — |
| M-Audio BX3 | €85 | 3.5″ | Rear | — | 78 Hz | 5.18 | — |
| Mackie CR4.5 | €139 | 4.5″ | Rear | — | 59 Hz* | — | — |
| Fluid Audio C35BT | ~€139 | 3.5″ | Rear | — | 72 Hz | 5.57 | — |
Max level: peak level of a pair at 1 m, converted from the maker's figure. * estimated from the maker's figure.
In our “best for” lists
Setup
- Rear port: keep at least 30 cm from the wall, or the bass gets boomy.
- Has a switch to cut bass when it stands on a desk or near a wall.
- Tweeter at ear height, about 110–120 cm when seated.
Specs
| Woofer | 4.5″ |
| Ways | 2 |
| Port | Rear |
| Size (H × W × D) | 225 × 156 × 175 mm |
| Inputs | TRS, RCA |
| Boundary EQ | Yes |
| Room correction | No |
Where to buy
Thomann EU · not an affiliate linkGear4music EU · affiliate linkSweetwater US · affiliate linkCheck price on Amazon EU · US · affiliate link
Shop links marked “affiliate link” earn us a small commission at no cost to you. It does not change the ranking. As an Amazon Associate we earn from qualifying purchases.