I am not sure I understand this correctly:
Can someone tell me the difference between these 2 items jon sells and when is the best time to use them: (and with the mixpre)
1 )
GTA Inline impedance converterhttp://naiant.com/naiant/inlinedevices.htmlTransformer-balanced 200KΩ:1KΩ impedance converters matches instrument input to microphone level output. Balanced or unbalanced 1/4" TRS input to balanced XLR output.
Also available, 10KΩ:500Ω 1/4" TRS to 1/4" TRS (balanced or unbalanced input and output) for line to instrument level matching.
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2 ) MPD Inline AttenuatorChoose 12dB, 18dB, and 24dB microphone level pads, 12dB line matching pad (+4dBu to -10dBV), 24dB line, 40dB line to mic level pad, 620Ω load, or polarity inverter.
Microphone level pads are intended for use with condenser microphones on loud sources. Microphone level pads have an input impedance of approximately 2KΩ and will thus pass phantom power with minimum voltage loss.
Line level pads have input impedance of 7KΩ or higher and are thus not intended for use between microphone and amplifiers, but rather between line level outputs and inputs.
The special 620Ω load MPD reduces effective input impedance of microphone amplifier for tonal options with dynamic microphones (620Ω load not recommended for use with condenser microphones).
The MPD may be ordered as an XLR adaptor (shown), XLR cable, TRS (female jack) to XLR (male) adaptor, or XLR (male or female) to TRS (male plug) cable.