Conventional amplifiers have serious problems when forced to drive electrostatic loudspeakers. Roger Sanders has developed the first amplifier specifically designed to drive these unusual speakers.
Electrostatic loudspeakers (ESLs) are very different from conventional magnetic speakers and place unusual and difficult demands on the way amplifiers deliver power to them.
A magnetic speaker presents a resistive/inductive load to an amplifier, while an ESL appears mostly as a capacitor.
Magnetic speakers draw tremendous current from an amplifier and that causes the internal power supply voltages to fluctuate dramatically in response to the music (typically by about 30%). This reduces the power from the amp and causes the distortion and bias to be modulated by the music.
A regulated power supply maintains stable internal voltages at all times. This is a tremendous improvement over a free-floating power supply. All amplifiers should use regulators, but virtually none do because their designers have not figured out how to make a powerful regulator that doesn't waste vast amounts of heat. Our regulator is unique in that it runs cold and wastes no heat. So we offer virtually the only regulated power supply amplifier on today's market.
Electrostatic speakers operate on voltage, not current. So they don't cause major fluctuations in the internal voltages like magnetic speakers do. But they will still cause some voltage modulation and mains voltage is not stable either. So even electrostatic speakers will benefit from an amplifier with a regulated power supply.
A regulated power supply will provide the best performance, so most of our customers (even our electrostatic speaker customers) opt for the Magtech. We keep the ESL amp in our line-up because it costs less than a Magtech and so represents a tremendous value. So those customers for whom money is a major concern, use the ESL amp instead of the Magtech.
In summary, the Magtech amp is the best for all speakers because it not only has the electrostatic amplifier modules, but it also includes a regulated power supply. So unless money is a major concern where the value of the ESL amp is essential, Roger recommends the Magtech.
Service and Support
Sanders Sound Systems Manuals
Sanders Sound Systems Videos
LMS Recommended Adjustments (click image to view video)
LMS Essential Adjustments (click image to view video)
Sanders Sound Systems Legacy Products Manuals
Sanders electronics are warranted to be free from defects in material and workmanship for as long as the original purchaser owns them.
The warranty applies only to the original owner. It is non-transferable.
During this period, Sanders will, at its option and without charges, either repair any part or assembly of parts that is found defective in material or workmanship or replace the product with one of comparable quality, subject to the following limitations and exclusions:
This warranty shall not apply to any product which has been subject to misuse, abuse, modification, negligence, or accident.To obtain warranty service, the owner need only contact the factory using the information below. The owner is responsible for paying shipping costs to return the faulty component to the Sanders factory.
Sanders Sound Systems
12054 Deer Trail Road
Conifer, CO 80433
Phone: (303) 838-83=130
Innersound Legacy Products Supported
Eros Mk1, Mk2, Mk3 Hybrid Electrostatic Loudspeakers and related crossover amplifier
Isis Mk1, Mk2
Electrostatic Loudspeaker Amplifier
Monoblock Electrostatic Loudspeaker Amplifier
Kilowatt Monoblock Amplifier
Home Theater Amplifier
Remote Control Preamplifier
Innersound Legacy Products Manuals