4500X Reference Build

The supplied factory and 4500X circuits are the fixed references. Your Build starts with their 4500X component values and your measured 3636 spans; changing autoformer finds the closest shared input and output taps.

Tap connections

The input capacitor feeds the shared input. The swamping resistor and compensation coil connect from that input to common, as shown in the source circuit. Driver filter branches connect to the listed outputs. Tap ratios use measured L from one dataset. Copper DCR is unknown; copper loss is omitted.

Component changes

The supplied values remain selected until you apply an evaluated alternative. Evaluation compares both driver voltage responses against the 4500X Reference from 250–4500 Hz.

Combined magnitude error: 0.03 dB RMS with supplied values; 0.03 dB RMS with evaluated values. This is a limited component search, not a global optimum or acoustic validation.

Electrical response comparison

Factory 4500X Reference Your Build

Electrical simulation into the resistor loads in the ASC files. Factory and reference traces preserve their component values, connectivity, coupling, and specified series resistance. Your Build uses an ideal tapped-transformer approximation with measured input L and tap ratios. These traces are not acoustic SPL or measured response; driver sensitivity is not included.

Parts and wiring

Node IDs identify electrical connections in the imported circuits; 0 is common. In Your Build, adapt-sq and adapt-tw are the measured output spans listed above. The source diagram below shows the original physical layout.