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

ADCOM ACE-515 (1987)

You've probably invested a lot of time and money putting together your stereo system.  So obtaining the best performance, electrical protection, and reliability from all this valuable gear is more than an option, it's a necessity. But, regardless of how sophisticated the design of your electronic equipment is, it may not be performing to full potential if it's plugged directly into an ordinary AC outlet.  Standard AC outlets often supply raw and unprocessed power that not only can diminish the clarity of audio signals, but it can also cause damage to the sensitive Integrated Circuits (ICs) inside your valuable equipment. ADCOM's ACE-515 AC Enhancer continuously avoids many of the problems caused by unreliable AC power supplies by filtering and conditioning the AC power, and eliminating "spikes" injected into the line by refrigerators, air conditioners, heating systems, atmospheric disturbances, etc.  A little-publicized fact is that many industrial centers, because of the machinery they use, inject a large number of "spikes" and other interference into the power lines. Similarly, radio transmitters can "pollute" power lines with  interference. These disturbances can be carried by power lines over very long distances and can affect AC outlets miles away. ADCOM's ACE-515 will provide, even if these disruptive signals are present at your AC outlet, both superior performance and additional protection for all the sensitive electronic equipment connected to it (up to 1800 watts total).

The ACE-515 can not only protect but actually improve the performance capabilities of your audio or video systems. As it filters the line voltage from your AC receptacle, eliminating noise and interference, such as radio frequency interference (RFI) and electromagnetic interference (EMI), it will reduce the residual noise in the system, enhancing both audio and video clarity. Simply stated, the ACE-515 provides your electronics with the purest input power so it can deliver its purest performance.
ADCOM has also designed the ACE-515 to protect your electronic equipment from potentially damaging high-voltage spikes and surges. The spike and surge protection built into its circuits is fast acting (less than 10 billionths of a second), and thorough (works on both sides of the AC line, and to Ground as well). For use with your audio system, the AC Enhancer is supplied with a special sequential turn-on/turn-off circuit designed to protect your speakers from turn-on/turn-off "thumps" which originate in one or more accessories and could otherwise be amplified to disturbing levels. The sequence was designed so that when you initiate the turn-on cycle, the CE-515 will energize the accessories immediately and delay power to your amplifier for 10 seconds - until the circuits in your accessories have stabilized. Only then will the amplifiers be turned on; so the thump often heard through the speakers while circuits are stabilizing will not be amplified. Similarly, when you initiate the turn-off sequence, the ACE-515 will remove AC power from the amplifier at once and hold the accessory power on for 30 seconds - until the power amplifier has completely discharged. This on/off process automatically provides your system components with power in the safest possible sequence and eliminates the need to do all this manually. And this sequencing can be advantageous when you're powering a video theater or computer system as well.

Only the ADCOM ACE-515 AC power enhancer has all of these important features:
High power-handling capability (up to 1800 W total).
Surge, spike, RFI and EMI filtering.
Correct, sequential turn-on and turn-off of your equipment.
All heavy duty electrical and structural components, outlets, power cord, etc.
Massive anodized aluminum front panel, heavy gauge steel chassis.
Safety Certification: ETL listed, and approved under UL Standard Number 498.

Input Power:  120VAC, ±20%, 50/60Hz
Protection:  15A Circuit breaker
Internal Power Consumption:  Less than 10W
Control Input:  120VAC, ±20%, 50/60Hz, fused at 1 Amp
Output:  Amplifiers, 10 Amps maximum per pole continuous.
Accessories, 2.5 Amps maximum continuous
Time Delays:  Delay-on-make 10 seconds ±20%.
Delay-on-break 30 seconds ±20%
Environmental:  Operating temperature, 0 degrees C to +50 degrees C.
Storage temperature, 40 degrees C to +80 degrees C

Filter provides reduction of both Transverse and Common Mode noise, interference and spikes (voltage transients).
Noise:  Begins attenuation above 10kHz, down 40dB at 150kHz
Maximum ContinuousAC RMS Voltage:  130
Maximum Continuous DC Voltage:  175
Transient Energy Dissipation:  11 Joules(10/1000uS)
Peak Current:  1200A
Response Time:  Less than 10 nanoseconds
Maximum Clamping Voltage:  390 at 10A (8/20uS)

Mechanical Dimensions (W x H x D):  432 x 76 x 150 mm, (17" x  3" x 5-15/16")
Maximum Dimensions (W x H x D):  432 x 81 x 171 mm, (17" x 3-3/16" x  6-3/4")
Weight:  2,7 kg (6 lbs.)
Main AC Cord:  1,8 m (6 ft)
Control AC Cord:  1,8 m (6 ft)
Outlets.....Three, 3 prong, grounded, polarized; Four, 2-prong. polarized; Seven, total
Also available with optional white front panel. 

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