# Acoustic Energy AE509²

Floorstanding passive loudspeaker from the 500 series, made by Acoustic Energy (🏴󠁧󠁢󠁥󠁮󠁧󠁿 GB-ENG).

Source: https://truescaleaudio.com/en/speaker/acoustic-energy-ae509-2
Manufacturer page: https://www.acoustic-energy.co.uk/products/500-series/

## Dimensions

| Dimension | Metric | Imperial |
| --- | --- | --- |
| Height | 1000 mm | 39.4 in |
| Width | 185 mm | 7.3 in |
| Depth | 270 mm | 10.6 in |
| Weight (each) | 19 kg | 42 lb |

Width is the cabinet. Including the plinth or outriggers it spans about 255 mm (10 in).

## Drivers

- 1 × 29 mm (1.1 in) tweeter — soft dome, derived from the Corinium programme
- 2 × 125 mm (5 in) mid-bass — carbon fibre cone, MTM, one above and one below the tweeter

## Specifications

| Specification | Value |
| --- | --- |
| Type | Floorstanding |
| Power | Passive |
| Enclosure | bass-reflex |
| Frequency response | 32–28000 Hz (±6 dB) |
| Crossover | 3400 Hz |
| Sensitivity | 89 dB |
| Impedance | 8 Ω nominal |
| Power handling | 175 W |

## About

The MTM floorstander of the second-generation 500 Series: two 125 mm carbon cones straddling the 29 mm soft dome that Acoustic Energy brought down from the Corinium. A 1 m cabinet only 185 mm across, standing on outriggers that reach well past it, and crossed at 3.4 kHz — where the original AE509 crossed at 2.9.

## See it to scale

This catalogue draws cabinets at their real size side by side, which no text version can reproduce. Compare the Acoustic Energy AE509² against another speaker at https://truescaleaudio.com/en/compare?a=acoustic-energy-ae509-2