
Half Day Compressor
Ross-style compressor with tilt-EQ, Guitar/Bass toggle, and post-compression boost. Squash and boost in one.
The Half Day Compressor from Summer School Electronics brings modern enhancements to classic Ross-style compression topology, renowned for smooth, musical compression characteristics that have graced countless recordings since 1970s. Circuit features four controls: Volume, Comp (compression amount), Tone (tilt-EQ), and Guitar/Bass toggle switch that fundamentally changes pedal's frequency response to match your instrument.
Guitar/Bass toggle represents Half Day's most notable upgrade over traditional Ross compressors. In "Guitar" mode, pedal's input capacitance rolls off lower frequencies, allowing compressor to emphasize midrange and upper frequencies where guitars naturally sit in band mix. This prevents compressed signal from becoming boomy or muddy while maintaining articulation and presence guitarists need. In "Bass" mode, circuit allows significantly more low frequencies to pass through unattenuated, making it ideal not just for bass guitar but also for baritone guitars, drop-tuned instruments, and synthesizers requiring full-range compression.
Integrated tilt-EQ Tone control acts as both high-pass and low-pass filter, functioning like see-saw where turning knob one direction emphasizes highs while reducing lows, and vice versa. Most innovative feature is built-in boost circuit positioned after compression stage. Traditional compressors can create perceived volume drop due to peak reduction; Half Day's boost circuit solves this problem, allowing you to achieve coveted "squashed" compressor sound with heavy sustain while maintaining—or even increasing—overall volume for solos and lead passages. Hand-built in Syracuse, NY, runs on standard 9-volt negative center power supplies, features true bypass switching, comes with lifetime warranty. Priced at $164.99.


Reverb
Amazon



