What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





Acoustic Energy AE2 loudspeakers


The Acoustic Energy, model AE2 is a high-power, compact, two-way loudspeaker, featuring the new patented "Metal Cone" bass/mid-range drive unit.
The "Metal-Cone" drive unit is a breakthrough in diaphragm technology and provides unequalled mid-band calrity, remarkable transparency and stero imaging due to the almost complete elimination of distortion
The use of two Bass/Mid range driver units in the AE2 gives further bass extension whilst retaining the speed and control of the unique "Metal-Cone".
The single most important element of a speaker is the diaphragm and the unique design of the Acoustic Energy "Metal-Cone" also provides exceptiona a power handling and durability.
"Metal-Cone" technology is protected by European Patent Application (no.87310904.5), United States pat. App. (no.133.020) World Patents Pending

Specifications
Frequency Response:  25 Hz - 30,000 Hz
On Axis at 1 m :  65 Hz - 18 kHz ±2,5 dB (50 Hz - 22 kHz ±4 dB)
Off Axis ±15° Horizontal at 1 m :  60 Hz - 18 kHz ±3 dB
Off Axis ±15° Vertical at 1 m :  60 Hz - 18 kHz ±3 dB
Sensitvity:  2,83 Volts RMS produces 91 dB SPL at 1 m
Impedance:  Minimum 5,5 Ω at 50 Hz  and 250 Hz. Max 16 Ω at 27 Hz
Harmonic Distortion:
At 90 dB / 1 Metre
2nd Harmonic :  less than 0,05%
3rd Harmonic :  less than 0,05%
At 100 dB / 1 Metre
2nd harmonic :  less than 0,1%
3rd Harmonic :  less than 0,1%
Power Compression Factor:  less than 1 dB at minimum Impedance (250 Hz) with an increase of 16 dB ( 1 watt, 40 watts ratio) Frequency Response within ±0,5 dB at 1 Volts RMS (ref. To 2,83 V RMS Input)
Power Handling:  for use with amplifier up to 250 watts RMS on program
Crossover:  2 way system
Crossover Frequency :  3,0 kHz 4th order 24 dB /octave 10 element all coils low DCR (LF Iron Dust Core, HF Air Core) all capacitors low Loss Polyester
Internal Wiring:  all connections via 24 strand 0,4 mm diameter Solid-Core Oxygen-Free-Copper (OFC). Silver plated individually Insulated conductors. All  connection Silver soldered.
LF Unit :  2 x 32 mm Edgewound ribbon copper voice coil, thermally coupled to tri-layer Ultra Hard Alloy 90 mm diaphragm max electrical peak to peak excursion - 8 mm max mechanical peak to  reak excursion 20 mm
HF Unit : 1 25 mm Edgewound ribbon copper plated aluminium voice coiil Thermally coupled to magnesium alloy 25 mm diaphragm ferrofluid damped and cooled Damped rear chamber loaded.
Connectors:  2 set 4 mm Binding posts for Bi-wiring
Cabinet:  precision engineered enclosure with bonded high density lining supplied with removable front grille
Finish:  Textured Black
Dimensions (W x D  x H):  235 x 330 x 385 mm
Weight:  17 kg (each)

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