Saturday, November 30, 2019

Grampian GR1/L ribbon mic on close vocals





This is another signal path that produced a very nice male vocal sound with no bass or mid heaviness, excellent treble, transient detail, high signal to noise ratio, and no p or s problems.


Some low cut was done by the use of specially made low inductance transformer of about 9.7mH primary inductance and about 1:9.3 turn ratio. A very small Magnetec nanoperm glass metal ring core was used, (smaller that the Magnetec 073).


Then one K117 JFET resistance coupled amplifier was fed.


Then the extra low cut needed was done by turning the LF control fully counterclockwise on the Tascam porta 07 (running cassette at double speed) which was used for the recording.


Setup, signal path:


Male voice singing She gives me love - Whitney Houston at 4-6 in, mic also 1ft from Pleyel upright piano - Grampian GR1/L - Pleiades 9.7mH, 1:9.4 step up (high pass) transformer - Pleiades K177 booster mic pre running with 1.2V - Tascam Porta 07, gain trim at max, channel fader at max, master fader at 0dB - TDK type II cassette - Sennheiser HD 580 or Bang & Olyfsen Beocenter 2600 amp and loudspeaker











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