AESPRIT 307 - Speaker Acoustic Energy - Free user manual and instructions

Product type	Three-way centre channel dialogue loudspeaker
Brand	Acoustic Energy
Model	AESPRIT 307
Speaker type	Passive bass reflex loudspeaker
Drive units	HF: Neodymium tweeter with silk dome; MF: 110 mm alloy cone; LF: 110 mm alloy cone
Crossover frequencies	155 Hz (LF) / 2.9 kHz (MF/HF)
Power handling	150 W max (undistorted program)
Frequency response	55 Hz - 23 kHz (±6 dB) / 70 Hz - 20 kHz (±3 dB)
Sensitivity	90 dB/W
Impedance	8 ohms (4 ohms minimum)
Cabinet construction	Real wood veneer, 15 mm MDF wrap, 30 mm MDF front baffle
Bass reflex port	High power, low turbulence design
Terminals	Gold-plated 4-way binding posts
Magnetic shielding	All drive units magnetically shielded for close placement to TV
Internal wiring	OFC (Oxygen-Free Copper) wiring for enhanced detail
Recommended placement	Above or below the TV screen, at ear level
Dimensions (W x H x D)	530 x 170 x 196 mm
Weight	8.0 kg (excluding packaging)
Warranty	3 years against original defects
Power supply	Passive, powered by external amplifier
Care and cleaning	Wipe with a soft dry cloth; avoid solvents and abrasives
Safety precautions	Switch off amplifier before connecting; ensure stable placement
Repairability	Drive units replaceable by qualified service personnel

Frequently Asked Questions - AESPRIT 307 Acoustic Energy

How should I position the AESPRIT 307 for best sound?

Place the AESPRIT 307 immediately above or below the television screen, whichever puts the speaker closest to ear level. Align the front of the speaker roughly with the plane of the screen for optimal dialogue reproduction.

Can I place the speaker close to a TV without causing interference?

Yes, all drive units are fully magnetically shielded, so the AESPRIT 307 can be used in close proximity to a TV screen or monitor for AV applications.

What is bi-wiring and how do I set it up?

Bi-wiring separates the bass and treble ground paths, improving sound quality. Connect two pairs of cables from the amplifier to the speaker terminals. Remove the shorting links between the treble/mid and bass sections. Use the positive (ribbed) and negative (smooth) cables correctly for each section.

What is bi-amping and how does it differ from bi-wiring?

Bi-amping uses two power amplifiers: one for the treble/mid section and another for the bass section. Wiring is similar to bi-wiring, but each section gets its own amplifier. Make sure to remove the shorting links; otherwise, the amplifiers could be damaged.

Why must the shorting links be removed for bi-wiring or bi-amping?

The shorting links connect the treble/mid and bass sections for normal passive wiring. In bi-wiring or bi-amping, you want to keep the sections independent, so the links must be removed to prevent shorting the outputs and causing damage.

What amplifier should I use with the AESPRIT 307?

The speaker has a nominal impedance of 8 ohms and sensitivity of 90 dB/W, so it works well with typical AV receivers or stereo amplifiers. Use an amplifier that delivers at least 150W per channel for maximum headroom.

What is the recommended power handling?

The AESPRIT 307 can handle up to 150W of undistorted program material. Avoid continuous high-volume distortion to protect the drive units.

What are the dimensions and weight of the AESPRIT 307?

The speaker measures 530 x 170 x 196 mm (W x H x D) and weighs 8.0 kg without packaging.

How do I set up the speaker for the first time?

Before connecting, make sure the amplifier is switched off. Attach the self-adhesive foam feet to the base. Connect the speaker terminals to the amplifier with cables, respecting polarity (positive to positive, negative to negative). Then turn on the amplifier and adjust volume to the desired level.

What does the 3-year warranty cover?

The warranty covers original defects in materials, manufacture, and workmanship for 3 years from the date of purchase. It does not cover fair wear and tear, accidents, misuse, or unauthorized modification. Contact your dealer for claims.

USER MANUAL AESPRIT 307 Acoustic Energy

AESPR07307

Owner's manual

AESPRIT

307

(AE)

ACOUSTIC ENERGY

Congratulations on choosing the Acoustic Energy AESPRIT 307, a powerful three-way centre channel dialogue loudspeaker which features metal diaphragm technology and is capable of outstanding performance. Please take a few moments to read this manual. The advice it contains will enable you to get the very best performance out of your Acoustic Energy loudspeaker.

The AESPRIT 307 utilises metal cone mid and bass drive unit technology, proven in the AE Reference series. The rigid anodised alloy cone ensures pure piston action and also acts as a heat sink for the bonded voice coil. These features provide exceptional clarity, transparency, dynamics and power handling. The units are housed within vented die-cast chassis reducing stray magnetic flux to a minimum and increasing power handling.

The tweeter - or treble driver - is a high-quality neodymium unit with a silk fabric dome integrating smoothly with the rest of the system.

All drive units are fully magnetically shielded so that the speaker can be used in close proximity to a TV screen or monitor for AV applications.

The Acoustic Energy AESPRIT 307 loudspeaker uses quality OFC internal wiring, which enhances detail and transparency.

Position the AESPRIT 307 either immediately above or below the television screen, whichever places the speaker nearest ear level when listening. Line the front of the speaker approximately in line with the plane of the screen.

Fix the four self-adhesive foam-rubber feet to the base of the speaker to protect both the surface on which the speaker stands and the underside of the speaker. The feet also absorb vibration, which is especially important if placing the speaker directly onto a thin television cabinet. If placement is on top of the television, be aware that the flat surface depth may be limited, so ensure the feet are placed accordingly.

When fine-tuning, adjust the levels of the left, centre and right speakers to give a balanced sound as images pan across the screen.

Check that your amplifier is switched off before installing your loudspeaker. Failure to do so may result in speaker or amplifier damage. The diagram illustrates one loudspeaker only.

Conventional

Normal passive wiring requires shorting links to be in place between the treble/mid and bass sections. The positive (ribbed) cable from the amplifier positive (or red) terminal should connect with the positive (red) terminal on the loudspeaker. Similarly the negative (smooth) cable should connect the amplifier negative terminal (black) to the negative terminal (black) on the loudspeaker.

Bi-wiring

Bi-wiring separates the bass and treble ground paths in the loudspeaker and offer sound quality advantages. An extra set of cables is required. Note that the shorting links are removed between the treble/mid and bass sections and should be stored for later use if conventional, passive driving is required.

Two pairs of cables are connected to the amplifier terminals. One cable of each pair should connect to the treble/mid section and one to the bass section. The positive (ribbed) cables from the amplifier positive (or red) terminal should connect with the positive (red) terminals on the loudspeaker. Similarly the negative (smooth) cables in each pair should connect the amplifier negative terminal (black) to the negative terminals (black) on the loudspeaker.

Bi-amping

Bi-amping adds a second amplifier to the system. One power amplifier drives the treble/mid section of both loudspeakers; a second drives the bass sections. Note that the shorting links must be removed. Failure to do so will result in damaging the amplifiers.

As regards the loudspeakers, wiring for bi-amping is achieved in much the same way as bi-wiring. Treble/mid amplifier positive (red) terminals should be connected via the ribbed cable to the positive (red) HF terminal on the speaker. Similarly, treble/mid amplifier negative is connected to the negative (black) HF terminal on the speaker. Repeat this process with the bass amplifier and LF terminal pair.

After wiring up

Lower the volume to the minimum, switch on the amplifier, select the signal source and then raise the volume to the listening level required.

Specifications

Warranty

HF unit	Neodymium tweeter with high dispersion diaphragm.Ferro fluid cooled and damped.Magnetically shielded.Exclusively profiled.
MF unit	110mm die-cast chassis. Alloy cone with 32mm coil. High-power, long-throw magnet system.Magnetically shielded.
LF unit	110mm die-cast chassis. Alloy cone with 32mm coil. High-power, long-throw magnet system.Magnetically shielded.
Crossover	@ 155 Hz, 2nd order LF@ 2.9 kHz, 3rd order MF@ 2.9 kHz, 3rd order HF
Power Handling	150W max (undistorted program drive)
Frequency response ±6dB	55Hz to 23kHz
Frequency response ±3dB	70Hz to 20kHz(on monitor console)
Sensitivity	90 dB/W
Impedance	8 ohm (4 ohm minimum)
Cabinet	Real wood veneered. 15 mm MDF wrap. High power, low turbulence bass reflex port. 30 mm MDF front baffle.
Terminals	Gold-plated 4-way binding posts.
Weight (excl. packaging)	8.0kg
Dimensions (WxHxD)	530 x 170 x 196 mm

Your Acoustic Energy loudspeakers are guaranteed against original defects in materials, manufacture and workmanship for 3 years from the date of purchase. Please retain all original packaging materials for possible future use. We suggest that you complete details of purchase now and keep this information in a safe place for future reference.

Under this warranty Acoustic Energy agrees to repair any defect or, at the company's discretion, replace the faulty component(s) without charge for parts or labour. This warranty does not imply any acceptance by Acoustic Energy or its agents for consequential loss or damage and specifically excludes fair wear and tear, accident, misuse or unauthorised modification.

This warranty is applicable in the United Kingdom only and does not in any way limit the customer's legal rights. Claims and enquiries under the warranty for AE products purchased outside the UK should be addressed to the local importers or distributors.

If you have reason to claim under the warranty please contact your dealer in the first instance.

Dealer's name:......

Address:

Date of purchase:

Serial numbers:

Acoustic Energy Limited

16 Bridge Road, Cirencester

Gloucestershire GL7 1NJ

Tel [phone]

Fax [phone]

Web www.acoustic-energy.co.uk

ACOUSTIC ENERGY