Systems

Mazda Miata Car Stereo, a Two-channel Audio System by Johnny2Bad

Room Size
2-seat Convertible
System Overview
Custom 12V Car Audio; DIY Preamp 4 Inputs; Regulated Power Supplies 1x 6V, 1x 9V, 2x 13.2V
Components
Digital Source
TEAC UD-H01 DAC; Apple iPod 160GB/iPhone4; SIRIUS-XM Satellite Tuner
Analog Source
AM/FM Tuner; AUX input
Signal Processors
Audio Control Bass Synthesizer; Audio Control Electronic Crossover @ 3100Hz
Preamp
DIY with 12AX7 Vacuum Tube; all inputs corrected to 700mV via 4x SMD resistor input level controls
Power Amp
MB Quart 2x50WRMS Main/2x 50WRMS Shakers; Rockford Fosgate 1x 100 WRMS Subwoofer
Speakers
2x Dome Tweeters + 2x 4" LF Drivers in custom door cards; 1x 10" Subwoofer under Parcel Shelf; 2x "Bass Shakers" mounted under each seat (switchable @ none, drivers' seat only, both)
Speaker Cable
OFC Copper w Silicon Dielectric, 20GA (HF), 14GA (LF), 12GA (Sub)
Interconnects
DIY Canare RCA, Mogami Star-Quad
Power Cables
8GA
Racking
Console, 2xDIN, Custom Faceplate
Tuning and Tweaks
System levels are configured such that Solid State power amplifier does not clip while Vacuum State preamp begins to compress/clip at 2 O'Clock = 1% 2nd Harmonic Distortion on the main level control; Subwoofer Gain has Top Up/Top Down states.