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 AE3 loudspeakers

Reference loudspeaker, model AE3
The AE3 is a high power, trhee-way loudspeaker featuring "Metal-cone" low-frequency and mid-range drive units. The well proven 130 mm (5") "Metal-Coe" drive unit, as used in the AE!, has been further developed and is used int he AE3 in a mid-range form in a heavily damped tubular transmission line enclosure within the main enclosure. The AE3 has the power and scale of much larger speakers but retains the dynamics, transparency, speed and detail of the AE1. "Metal-Cone" technology is protected by european patent application no.87310904,5 United States patent application no.133,020, World patents pending

Frequency Response;  25hz - 30,000 Hz
On Axis of HF at 1 m :  55 Hz - 17,000 Hz ±2,5 dB
On Axis of MF at 1 m :  55 Hz - 17,000 Hz ±2,0 dB
Off Axis of HF±30° Horizontal at 1 m :  55 Hz - 14,000 Hz ±3 dB
Off Axis of HF +15° Vertical at 1 m :  55 Hz - 17,000 ±3 dB
Off Axis of HF - 15° Vertical at 1 m :  55 Hz - 16,000 ±2 dB
Sensitivity:  87 dB
Impedance:  4 Ω min. At 110 Hz (typically 6 Ω)
Total Harmonic Distortion:  typically 0,3% (range 200 Hz - 20 kHz)
Power Compression Factor:  Not measurable below 100 watts power input from band limited pink noise 63 Hz - 20 kHz
Power Handling:  for use with amplifiers up to 250 watts RMS
Crossover:  3-way system Crossover frequencies 300 Hz and 3 kHz. 18/24 dB per octave filter slopes, 32 element - all coils low DCR (Iron Dust Core or Air Core) all capacitors low loss electrolytic or polyester
LF Unit:  40 mm Edgewound ribbon copper voice coil on high thermal conductivity former thermally coupled to tri-layer ultra hard alloy 160 mm diaphragm, max linear electrical peak to peak excursion - 10 mm max. Mechanical peak to peak excursion - 20 mm
MF Unit:  32 mm Wdgewould ribbon copper plated aluminium voice coil on high thermal conductivity former thermally coupled to tri-layer ultra hard alloy, 90 mm Diaphragm, high gauss, low viscosity ferrofluid damped and cooled.
HF Unit:  25 mm Edgewound ribbon copper plated aluminium voice coil thermal ly coupled to magnesium alloy 25 mm Diaphragm. Ferrofluid damped and cooled. Damped rear chamber loaded.
Connectors:  3 set 4 mm Binding posts for Tri-wiring
Cabinet:  Precision engineered MDF enclosure with bonded high density lining finished in black texture, Supplied with removable front grille
Dimensions (W x D X H):  275 mm x 385 mm x 640 mm
Weight:  33 kg (each)

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