# JBL 306P MkIII

Studio monitor active loudspeaker from the 3 Series MkIII series, made by JBL (🇺🇸 US).

Source: https://truescaleaudio.com/en/speaker/jbl-306p-mkiii
Manufacturer page: https://jblpro.com/en/products/306p-mkiii

## Dimensions

| Dimension | Metric | Imperial |
| --- | --- | --- |
| Height | 370 mm | 14.6 in |
| Width | 210 mm | 8.3 in |
| Depth | 290 mm | 11.4 in |
| Weight (each) | 6.7 kg | 15 lb |

## Drivers

- 1 × 25 mm (1 in) tweeter — soft dome, in the JBL Image Control Waveguide; 120° × 90° coverage
- 1 × 165 mm (6.5 in) woofer — redesigned MkIII cone, materials and magnet assembly

## Specifications

| Specification | Value |
| --- | --- |
| Type | Studio monitor |
| Power | Active |
| Enclosure | Bass reflex, front port |
| Frequency response | 52–27000 Hz (±3 dB) |
| Crossover | 2040 Hz |
| Built-in amplification | 110 W per speaker |
| Introduced | 2026 |

## About

The middle of the MkIII range, and the one that buys the most for the extra 5 cm of cabinet: a 6½-inch woofer reaching 52 Hz with 110 W behind it, against the 305P's 55 Hz and 86 W. Same 1-inch soft dome in the Image Control Waveguide, same front-firing Slipstream port and the same 81 one-touch room-EQ presets. Announced November 2026, shipping in North America from January 2027.

## See it to scale

This catalogue draws cabinets at their real size side by side, which no text version can reproduce. Compare the JBL 306P MkIII against another speaker at https://truescaleaudio.com/en/compare?a=jbl-306p-mkiii