Equi=tech ET2RSI-F Balanced Power Conditioning System in good condition. This unit has been in service in my studio for a number of years.
Works best on a 20amp circuit breaker but can be used on a 15amp. The case is in very good condition, the unit does have a transformer type hum when under full load. This model is closest to the newer model Son of Q in terms of features.
This is a 12.5A version, with EMI/RFI Filter and Super Isolator (a transformer that is wound with exceptionally low capacitance). Both the RFI and Super Isolator were upgrade options. Skywallker Sound uses balanced power! The Equi=Tech (ET) is an isolation transformer that converts standard AC into balanced power. So what is balanced power?
Thats the same question I had when I first heard about it. Of course the second was, what does it do for me? To explain balanced power I must first make sure we are all on the same sheet of music as to how AC is delivered to our equipment. What comes out of the wall is unbalanced a. Single ended AC (Alternating Current).It has a hot conductor (120 V) and a neutral conductor (0 V), along with ground. This is the way AC has been delivered since its inception. With balanced power, you get +60 V on one conductor and 60 V on the other conductor, relative to the ground conductor, giving you 120 V total.
Balanced power provides common mode noise rejection to eliminate noise. The ET comes in various flavors. First you must choose what size transformer you want, from 1, 1.5 , 2, 3, 4, and 5 kVA versions. Along with the different size, there is the option of adding the SI, E, EA, and F options. It is a transformer that is wound with exceptionally low capacitance.
I did not have the SI option for my review. At the time of order, you specify how many of the outlets on the back you want filtered. The filter, which is designed primarily for digital components, like CD DACs, rather than analog components, like amplifiers. Here's a Review by Home Theatre & Audio Review, Stacey Spears it explains the advantages of balanced power for audio recording and home theatres.
Output Voltage - 120/60 VAC. Rack mountable - accessories included upon request. Chassis Dimensions: 16.25W x 16D x 5H (3r spaces). Typical AC Inlets, AC Power Cord Plugs. Bifilar Wound Isolation Transformer -- This patented method of winding AC power transformers is the most accurate way of all to achieve a perfectly balanced output.
It is a feature that increases the performance of Equi=Tech products above all others. Perfect balance is one of the most critical of all design specifications to consider when providing a balanced power system for sensitive electronics. Because of this feature, Equi=Tech's balanced power systems provide a wider bandwidth of noise attenuation than any other product in the marketplace. To get the best performance from one's electronics, a perfectly mirrored output stage is crucial.
This is especially true for today's high resolution digital electronics. The result is greater definition in video and smoother and more detailed highs in music without excessive sharpness or an annoying edge. IT and other computer related systems benefit from this feature with faster throughput and fewer data errors.Magnetic and Faraday Shielding -- These are expensive but worthwhile features built into every system we offer. The shields work to eliminate noise from the outside world as well as to protect nearby electronics from magnetic stray field radiation. Unlike similar products, Equi=Tech systems are safe to use near sensitive equipment. Highly Effective Redundant Surge Protection -- A dual stage transient voltage surge suppressor (TVSS) is provided as a spike protection device rated at 240 joules. But count on Equi=Tech to add a thoughtful extra touch to our products. No surge suppressor made can be guaranteed to last forever. All are designed to be sacrificed for the sake of protecting your equipment in extreme circumstances that do happen.
So unlike most other products in the marketplace, a useful status indicator light lets you know when your system has taken too many hits from nuisance voltage spikes and the time has come to replace the surge protection unit. Though they typically last for many years, the surge module is easy and inexpensive to replace.
After all it's better to know you have lost surge protection when it happens than to encounter a serious spike and lose your valuable components because of a worn out TVSS that you didn't realize had already taken all it could handle. But that's not all that we provide.As a redundant line of defense, grounded electrostatic shielding between the power transformer coils shunt dangerous voltage spikes, even huge spikes over several thousand volts for additional protection and piece of mind. Digital Equipment Outlets -- These filtered outlets provide additional high frequency noise attenuation and isolation for switching power supplies found in typical digital electronics. These outlets are designed for use with CD Players, DVD Players, DAT Players, Dish Receivers, Hi Definition Digital Television Receivers, Plasma Displays, automation controllers, computers and other high resolution digital electronics. Unswitched Outlet -- An entire theater, audio system or data processing system can be turned off and on from the front panel by using the front standby switch.
As a convenience, one outlet on the back panel remains on all the time for equipment that uses a date/time clock such as TIVOs, VCRs, PVRs, DVRs or other components that require constant power for volatile memory. 100% Passive Circuitry -- There are no active components used in our systems.There is nothing that will burn out or degrade from heat over time or from years of rugged use. Some systems you may encounter employ semiconductor devices to drive the outputs or soft-start relays to compensate for a low quality isolation transformer with high inrush current -- not Equi=Tech!
There is simply nothing in our systems to wear out or degrade over time from heavy usage or from heat. So the next time you are watching a live broadcast of the Super Bowl or Presidential Inauguration, keep in mind that Equi=Tech is there running the show because top engineers know that there are times when equipment failure is not an option.Ruggedness, reliability and the most refined balanced power technology on Earth is why the top professionals in many technical fields choose Equi=Tech. High Efficiency -- Our systems are the most efficient of their kind in the world. This means that you waste no power running an Equi=Tech to drive your electronic components. Even when they are driven hard, they generate very little heat.
Most of the time, they barely run warm. They draw very little power in idle mode and can be left turned on practically forever, ready to meet the toughest power demands in an instant. In operational mode, they waste almost no electricity at all. They draw about as much power as what they are asked to put out.ANSI/UL Tested -- Equi=Tech products have been tested and certified to meet ANSI/UL Standard #1012 which is the most rigorous and demanding of all industry standards for Class A (high voltage) power distribution equipment. No one other than Equi=Tech makes a balanced power systems that meets the design criteria and safety testing procedures required by this standard. Equi=Tech makes the only systems that meet stringent OSHA standards governing safety in the workplace. Not only do OSHA associates, engineers and inspectors approve our products, they have also been known to marvel at the excellence of their design and build. Electricity can be a dangerous thing if there are undetected flaws in non listed equipment or equipment inspected to meet inappropriately low standards.
Beware of power products listed as "Audio Equipment" to circumvent ANSI/UL Standard #1012 (the power standard) just to get a UL listing label of any kind. You wouldn't want that anymore than you would want beef from the supermarket inspected to dog food standards. Who would want a non-standard or unlisted power product in their workplace or in their home anyway?Unlike other manufacturers of balanced power products, we cut no corners in the design and fabrication of our systems. As we should, we take electrical safety as seriously as performance and we go the extra mile to prove it.
We are a company of conscientious people who value our integrity and demonstrate it by how we build what we sell. Our products are the real deal in every imaginable way. The item "Equi=tech ET2RSI-F Balanced Power Conditioning System in good condition" is in sale since Thursday, February 20, 2020. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Audio Power Conditioners". The seller is "redy4biz" and is located in Fountain Hills, Arizona.
This item can be shipped to United States.