Acoustic Energy Loudspeaker 307 Centre User Manual

							www.acoustic-energy.co.uk
OWNERS MANUAL
3SERIESTHREE 
						

							Congratulations on choosing the Acoustic Energy 3 Series,
speakers designed to ofer exceptional performance with the
highest standards of design and engineering.
The 3 Series has been engineered to ofer neutral balance, low-
distortion and high power handling with as little cabinet
colouration as possible. The use of front slot-porting minimises
room interaction while the hard-anodised spun aluminium
cones ensure accurate, pistonic musical signal reproduction.
Please take a little time to read through this manual and follow,
as far as practical, the installation guidelines it contains.
Careful installation will help ensure your 3 Series speakers
perform optimally and ofer many years of listening enjoyment.
Should you have any questions not covered here or need more
in-depth set-up advice we are happy to try and answer your
queries either by telephone or email. Contact information can
be found on the back of this manual. 
						

							Congratulations on choosing the Acoustic Energy 3 Series,
speakers designed to ofer exceptional performance with the
highest standards of design and engineering.
The 3 Series has been engineered to ofer neutral balance, low-
distortion and high power handling with as little cabinet
colouration as possible. The use of front slot-porting minimises
room interaction while the hard-anodised spun aluminium
cones ensure accurate, pistonic musical signal reproduction.
Please take a little time to read through this manual and follow,
as far as practical, the installation guidelines it contains.
Careful installation will help ensure your 3 Series speakers
perform optimally and ofer many years of listening enjoyment.
Should you have any questions not covered here or need more
in-depth set-up advice we are happy to try and answer your
queries either by telephone or email. Contact information can
be found on the back of this manual. 
						

							Positioning
The 3 Series are fexible with regard to positioning and are designed to
work well with some reasonable thought to placement within the
listening environment. There are some basic guidelines that should be
followed (where possible) for optimum performance:
The tweeters (high frequency drivers, N/A to subwoofer) should ideally
be at ear level when the listener is seated and for serious listening the
grilles are best removed where practical. The 307 may require
placement lower if used with a screen in typical A/V layout.
Rigid support is necessary for the speakers to deliver optimum
dynamic response and detail, the 301’s and 307 beneft from either
good stands or a solid surface below them, the 305’s and 308 should
be used with their own foor spikes where possible. Extra coupling can
be achieved with standard mounting tack used to secure placement.
Room positioning: The 3 Series speakers are relatively easy to place
with no rear-porting but where possible a minimum of 8” (20cm) of
space should be allowed between the speakers and boundary walls.
Stereo models should be the same distance from each other as the
listening position. Bungs can be used in ported models if bass
becomes “boomy”.
Experiment and listen to what works best for you, trust your own ears
and judgement.   
						

							Positioning
The 3 Series are fexible with regard to positioning and are designed to
work well with some reasonable thought to placement within the
listening environment. There are some basic guidelines that should be
followed (where possible) for optimum performance:
The tweeters (high frequency drivers, N/A to subwoofer) should ideally
be at ear level when the listener is seated and for serious listening the
grilles are best removed where practical. The 307 may require
placement lower if used with a screen in typical A/V layout.
Rigid support is necessary for the speakers to deliver optimum
dynamic response and detail, the 301’s and 307 beneft from either
good stands or a solid surface below them, the 305’s and 308 should
be used with their own foor spikes where possible. Extra coupling can
be achieved with standard mounting tack used to secure placement.
Room positioning: The 3 Series speakers are relatively easy to place
with no rear-porting but where possible a minimum of 8” (20cm) of
space should be allowed between the speakers and boundary walls.
Stereo models should be the same distance from each other as the
listening position. Bungs can be used in ported models if bass
becomes “boomy”.
Experiment and listen to what works best for you, trust your own ears
and judgement.  
Connections (301 and 305*)
Check that your amplifer is switched of before installing your 
loudspeakers. Failure to do so may result in speaker or amplifer
damage. 
The positive cable from the amplifer positive (or red) terminal should
connect with the positive (red) terminal on the loudspeaker. Similarly
the negative cable should connect the amplifer negative terminal
(black) to the negative terminal (black) on the loudspeaker.
After wiring up, lower the volume to the minimum, switch on the
amplifer, select the signal source and then raise the volume to the
listening level required.
*For 307 and 308 models please refer to amplifer instruction manual
as many confgurations are possible and will vary.-
+
Amplifer (Rear)-
+ -+
- +
Speaker
(Rear)- +
Speaker
(Rear)
(diagram for illustration purposes only) 
						

							Specifcations
Tweeter:  28mm AE Custom Fabric Dome (308 N/A)
Mid/Bass Drivers:  301,305,307 = 110mm Spun Aluminium Cones
    308 = 300mm Recycled Pulp Fibre Cone
Power Handling:  301 = 150 Watts RMS, 305 = 200 Watts RMS
    307 = 175 Watts RMS, 308 = Active 500 Watts
Frq Response:  301 = 48Hz-32kHz, 305 = 35Hz-32kHz
    307 = 45Hz-32kHz, 308 = 28Hz-120Hz (+/- 3dB)
Sensitivity:  301 = 87dB, 305 = 90dB, 307 = 88dB (308 N/A) 
Impedance:  8 ohm (6 ohm minimum) All models (308 N/A)
Cabinet:    Multiple brace, pressure loaded 18mm MDF
    with low turbulence slot ports, 308 Sealed box.
Weight (Each):  301 = 5.5kg, 305 = 17kg, 307 = 9kg, 308 = 20kg
Size (HxWxD):  301 = 300 x 185 x 250mm, 305 = 900 x 185 x 300mm
    307 = 185 x 450 x 260mm , 308 = 360mm³
Finish:    High gloss piano black or white 
						

							Specifcations
Tweeter:  28mm AE Custom Fabric Dome (308 N/A)
Mid/Bass Drivers:  301,305,307 = 110mm Spun Aluminium Cones
    308 = 300mm Recycled Pulp Fibre Cone
Power Handling:  301 = 150 Watts RMS, 305 = 200 Watts RMS
    307 = 175 Watts RMS, 308 = Active 500 Watts
Frq Response:  301 = 48Hz-32kHz, 305 = 35Hz-32kHz
    307 = 45Hz-32kHz, 308 = 28Hz-120Hz (+/- 3dB)
Sensitivity:  301 = 87dB, 305 = 90dB, 307 = 88dB (308 N/A) 
Impedance:  8 ohm (6 ohm minimum) All models (308 N/A)
Cabinet:    Multiple brace, pressure loaded 18mm MDF
    with low turbulence slot ports, 308 Sealed box.
Weight (Each):  301 = 5.5kg, 305 = 17kg, 307 = 9kg, 308 = 20kg
Size (HxWxD):  301 = 300 x 185 x 250mm, 305 = 900 x 185 x 300mm
    307 = 185 x 450 x 260mm , 308 = 360mm³
Finish:    High gloss piano black or white
Warranty
Your Acoustic Energy 3 Series loudspeakers are guaranteed against original
defects in materials, manufacture and workmanship for 3 years (308 Subwoofer
1 year) from the date of Purchase. Please retain all original packaging materials
for possible future use.
We suggest that you complete the 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 specifcally excludes
fair wear and tear, accident, misuse or unauthorised modifcation.
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 frst instance.
Dealer’s name: ................................................................\
...............................................................
Date of purchase: .................................................................\
........................................................
Serial numbers: ...........................................................\
.................................................................. 
						

							www.acoustic-energy.co.uk
ACOUSTIC ENERGY LTD16 Bridge Road,Cirencester,
Gloucestershire, GL7 1NJ
Tel: +44(0) 1285 654432
Fax: +44(0) 1285 654430
Email: [email protected]