Derumbleizer versions available

Every Derumbleizer uses precision resistors and capacitors and low-noise integrated circuits, in a fully shielded extruded aluminum enclosure available in clear or black anodized finishes.

Basic Derumbleizer

Measures 1-3/4 × 3-1/8 × 5-1/4 in (44 × 78 × 33 mm).

  • Phono preamp and RIAA equalizer built in
  • Works with amplifiers that lack a phono input (use aux/line)
  • Clear or black anodized aluminum case
  • Wall-mount power supply, instructions and feet included
$200 standard EQ

Deluxe Derumbleizer (coming soon)

Measures 1-3/4 × 3-1/8 × 7-1/2 in including knobs (44 × 78 × 190 mm).

  • Variable equalization for pre-1950s LPs and 78 rpm records
  • Bass turnover, bass boost and treble-cut settings
  • Compatible with nearly any record you throw at it

Under development.

Front view of the Basic Derumbleizer in an aluminum enclosure
The Basic Derumbleizer.
The Deluxe Derumbleizer under construction in the workshop
The Deluxe Derumbleizer under construction.

Either version can be customized with the equalization settings of your choice (within a percent or two) for an additional fee. Moving-coil models and a Signal Processor for use with your own phono preamp or tape loop are also in development.

Deluxe variable equalization settings

The Deluxe model lets you dial in the playback curve to match a specific record era or pressing. A few of the settings are shown below.

Bass turnover graph from 5 Hz to 100 Hz
Bass turnover: flat (5 Hz), 20, 40, 50, 70, 100 Hz with bass boost at 500 Hz and treble cut at 2.1 kHz.
Bass boost graph from flat to 500 Hz
Bass boost: flat (5 Hz), 150, 200, 270, 360, 500 Hz with bass turnover at 50 Hz and treble cut at 2.1 kHz.
Treble cut graph from 1.5 kHz to flat
Treble cut: 1.5, 2.1, 3.6, 5.2, 6.3 kHz and flat (53 kHz) with bass at 50 Hz / 500 Hz.
Flat frequency response graph for acoustic recordings
For acoustic records, set all equalization to “flat.” Note the scale change from the previous graphs.