Acoustic Energy AE309 Floorstanding Speaker
1 199,00 €
Acoustic Energy AE309 is a slim floorstanding speaker for medium-sized and large rooms. Two 130 mm drivers with ceramic and aluminium cones are paired with a 25 mm aluminium tweeter. Waveguides shape its acoustic dispersion to match the other drivers. The reinforced 18 mm MDF cabinet has an inert-mass-damped base and a rear bass reflex port.
Acoustic Energy AE309 is a slim floorstanding speaker designed for medium-sized and large rooms. It belongs to the Acoustic Energy 300 Series, while its compact cabinet makes planning the available space easier.
Who Is It For?
The narrow cabinet is useful when arranging a stereo system in a room with limited width. However, as a floorstanding model, the AE309 still requires its own floor space and sufficient clearance behind the cabinet for the rear bass reflex port.
Drivers and Waveguide
The acoustic system uses two 130 mm mid-bass drivers. Their cones are made with ceramic and aluminium layers. The cones have an extremely shallow profile, while the drivers incorporate long-throw motor systems.
High frequencies are reproduced by a 25 mm aluminium tweeter described as having a low fundamental resonance. It operates with Wide Dispersion Technology waveguides. These waveguides control the tweeter’s acoustic dispersion and match it to the characteristics of the other two drivers, helping the different parts of the speaker operate as a coordinated system.
Cabinet and Placement
The 18 mm high-density MDF cabinet is reinforced using Acoustic Energy technology derived from the Reference Series. The base of the cabinet is filled with an inert mass to provide additional damping.
An elongated bass reflex port is located on the rear panel. The speaker should therefore not be placed immediately against a wall. Begin with some open space behind it, listen from your usual seating position and adjust the distance gradually. If the bass sounds too prominent, move the speaker farther away from the rear wall.
The design includes 8 mm floor spikes. Position the speaker so that every support point rests firmly and the cabinet remains stable. When placing it on a delicate wooden or laminate floor, use separately purchased protective spike cups to avoid pressing the spikes directly into the surface.
Connections and System Matching
The connection type, impedance, sensitivity and recommended amplifier power are not specified. Consequently, a particular cable plug or amplifier power rating cannot be selected from the driver diameters alone. Confirm these parameters before choosing an amplifier or deciding which cable terminations to use. Driver size by itself does not establish electrical compatibility or the power requirements of a complete system.
Finish Options
An earlier store description mentioned piano black lacquer, a white finish and a matt real-walnut veneer. The walnut version uses wood veneer rather than solid walnut. Check the finish stated in the specific offer before ordering, as the earlier list does not by itself confirm which version is being supplied.
Technical Specifications
| Model | Acoustic Energy AE309 |
|---|---|
| Type | Slim floorstanding speaker |
| Series | Acoustic Energy 300 Series |
| Recommended room | Medium-sized or large |
| Cabinet proportions | Narrow cabinet with compact dimensions |
| Mid-bass drivers | 2 × 130 mm |
| Cone material | Layered ceramic and aluminium construction |
| Cone profile | Extremely shallow |
| Motor system | Long-throw |
| Tweeter | 25 mm, aluminium |
| Fundamental resonance | Low (manufacturer’s description) |
| Waveguides | Wide Dispersion Technology |
| Waveguide purpose | To match the tweeter’s acoustic dispersion to the other drivers |
| Cabinet material | 18 mm high-density MDF |
| Cabinet reinforcement | Technology derived from the Reference Series |
| Bass reflex port | Elongated, located on the rear of the cabinet |
| Base damping | Inert-mass filling |
| Supports | 8 mm floor spikes |
| Finish | Previously listed as piano black lacquer, white or matt real-walnut veneer; check the specific offer |
FAQ
Are the speaker’s exact dimensions specified?
The cabinet is described as compact, but no numerical dimensions are provided. Before planning its position, check the measurements stated in the specific offer.
How should I choose an amplifier?
You need to know the speaker’s impedance, sensitivity and recommended amplifier power range before selecting an amplifier. The size of the drivers alone is not enough to determine compatibility.
Can the speaker be placed directly against the rear wall?
The rear bass reflex port needs adequate clearance. Begin with a gap behind the cabinet, then adjust the position according to the bass balance at your listening seat.
How should I begin positioning a stereo pair?
Place both speakers at the same distance from the rear wall. Start with both cabinets angled equally, then alter their toe-in toward the listening position in small steps.
How should the floor spikes be used on a delicate surface?
Place separately purchased protective cups beneath the spikes. They allow you to use the speaker’s support points without pressing them directly into a wooden or laminate floor.
