How is the SFL-2 recalibrated when replacement tubes are installed?
When ordering tubes, please specify the equipment that they are for. In the case of an SFL-2, a diagram will be included with the set of tubes for setting the phase balance controls. 8. What happens when a 4 ohm speaker is connected to an amp with 8 ohm outputs? An impedance mismatch results in greater tube wear and more strain on the power supply and output transformer. All Sonic Frontiers and Anthem tube amplifiers can be configured to match various speaker loads. Instructions on how to change the output transformer impedance can be found at owner’s manual . 9. What kind of interconnect and speaker cables are recommended? The way a cable sounds depends on the whole system as well as the length, impedance, and capacitance of the cable. Many good cables are available and most dealers can provide samples for home auditioning. Room acoustics also play a role in determining which cable sounds best in a given system. 10. Which connection is better, balanced or single-ended? Balanced operat
