I'm looking to record without miking an amp or using desktop/software amp modelers. Would this be possible, correct to do this for signal chain: Guitar > Guitar Cable > Guitar Rack Preamp (ADA MP1 or Marshall JMP1) > Stereo Cable > Apogee Duet FireWire Interface Line In > MacBook Pro > DAW I don't mind about convincing tube tones, just want to make sure whatever tone it provides sounds crystal clear with no hum or line level noise. 1. Would I need some sort of buffer between the Guitar Rack Preamp and my Interface like a DI box? 2. What cables are the right kind to go between the Guitar Rack Preamp and the Audio Interface?