Frequency Response .......................................... | 10Hz to 60kHz, +0dB |
This is the “standard” specification with which everyone is familiar. Actually, “frequency response” is a misnomer: technically, it should be called “amplitude response versus frequency” for it describes how uniform the amplitude or strength of signals of various frequencies is maintained. It is generally thought that a difference of 1dB is the least that can be perceived by ear, the SM6 is specified almost seven times higher, thus exceeding the audible range of the human ear.
Signal to Noise Ratio (unweighted).................................................................... | 100dB |
The ratio of desired signal to noise signals present in the output. The balanced circuit topology of the SM6 provides the foundation for high noise rejection. This figure is referenced to the rated output of the SM6, taking into full account all potentially annoying hum components.
Dynamic Range ................................................................................................. | 116dB |
Dynamic Range is the difference between the loudest and quietest portions of a signal. Due to CD formats 96dB dynamic range limit, the SM6 provides more than enough dynamic range to cope with any musical transients the CD format can throw at it.
Input Impedance................................................................................................. | 10kΩ |
The resistance “load” that is presented to the component that is driving it. The high value indicates that the preamplifier will not load down the output of most high quality source components.
Input Sensitivity................................................................................................ | 215mV |
Indicates the amount of input voltage required to drive the unit to its rated output. Due to the gain setup of the SM6, it is able to achieve its rated output even from the lowest of input levels.
Input Overload................................................................................................. | 3.8VRMS |
Input Overload specifies the maximum signal level that each input circuit can handle without overloading the preamplifier circuitry and sending it into clipping.
Phase Accuracy....................................................................... | ±0.5˚, 20Hz – 20kHz |
Shows the maximum amount of phase difference at any point across the frequency range 20Hz to 20kHz.
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