With over two years of meticulous development and testing behind it, the DocDerr provides an unprecedented combination of power and musicality in a compact, easy to use format. Empirical Labs' first compressor in the API 500 format.

An extremely low-noise preamp capable of working with line level or instrument level signals, is followed by four sections of EQ combining a two position high pass filter with three parametric bands, each with its own set of carefully tuned frequency presets. An internal jumper can turn the DocDerr into an unparralled instrument preamp with 16dB of gain, ideal for acoustic guitar, bass, synths, exotic plucked instruments, etc.

The versatile EQ is followed by a unique dynamics section which offers renowned Empirical Labs compression at an unprecedented price, and an extremely musical tape emulation circuit that softens and tames high frequencies and transient spikes.

One of the pivotal features of the DocDerr is the “Mix” knob which allows the user to blend the uncompressed EQ’s signal with the compressed and saturated signal.

Key features:

• Extremely low-noise preamp capable of working with line level or instrument level signals
• Four sections of EQ combining a two position high pass filter with three parametric bands
• Internal jumper can turn the DocDerr into an unparralled instrument preamp with 16dB of gain, ideal for acoustic guitar, bass, synths, exotic plucked instruments, etc
• Compression with musical tape emulation circuit that softens & tames high frequencies & transient spikes
• Mix knob which allows the user to blend the uncompressed EQ’s signal with the compressed & saturated signal
• Linkable: for using our famous compression on stereo sources
• Available with either horizontal or vertically oriented front panel configurations