A slight correction to Raquel's characteristically knowledgeable post.
Long interconnects will cause upper treble rolloff, not bass rolloff, if driven by a preamp having high output impedance (at high frequencies). The higher the capacitance per unit length of the particular cable, and the longer the length of the cable, the greater that effect will be.
Interconnect cable parameters and length have no relation to bass rolloff, at least to the extent that cable effects are technically explainable and predictable. As indicated, bass rolloff will result if all three of the following conditions are present:
1)Power amp input impedance is low, e.g., significantly less than 50K.
2)Preamp output impedance is high.
3)Preamp output impedance rises significantly as frequency decreases and approaches 20Hz.
Those three conditions most commonly occur when a tube preamp having a coupling capacitor at its output (as most do) drives a solid state power amp.
Regards,
-- Al
Long interconnects will cause upper treble rolloff, not bass rolloff, if driven by a preamp having high output impedance (at high frequencies). The higher the capacitance per unit length of the particular cable, and the longer the length of the cable, the greater that effect will be.
Interconnect cable parameters and length have no relation to bass rolloff, at least to the extent that cable effects are technically explainable and predictable. As indicated, bass rolloff will result if all three of the following conditions are present:
1)Power amp input impedance is low, e.g., significantly less than 50K.
2)Preamp output impedance is high.
3)Preamp output impedance rises significantly as frequency decreases and approaches 20Hz.
Those three conditions most commonly occur when a tube preamp having a coupling capacitor at its output (as most do) drives a solid state power amp.
Regards,
-- Al