Bettermaker Stereo Passive Equalizer
Made to Order
100% analog audio signal path
– USB connectivity with MAC/PC
– all parameters are digitally controlled by the DAW (with dedicated plugin)
– stereo passive equalizer with extended hi-boost section (air bands: 20 and 28 kHz)
– adjustable output level (+/- 8dB)
Digital Section
The sound of the Passive Stereo Equalizer is obviously based on the quality of its precisely matched analog filters, capacitors and inductors. But all user control and interactions are performed in the digital domain. This allows us to incorporate options and possibilities not found in any standard analog equalizer:
- Instant reset of all parameters
- Fast, accurate and repeatable adjustments
- Precisely linked stereo operation with single-control ease
- DAW automation and recall of all available parameters
The digital section of the passive stereo equalizer is based on a high-speed 32-bit microcontroller, with dedicated firmware programmed into its memory (with the possibility of updating the firmware via USB connection). It controls analog filter parameters, monitors the user interface, USB connectivity, and other SPE functions.
– 100% analog audio signal path
– USB connectivity with MAC/PC
– all parameters are digitally controlled by the DAW (with dedicated plugin)
– stereo passive equalizer with extended hi-boost section (air bands: 20 and 28 kHz)
– adjustable output level (+/- 8dB)
Digital Section
The sound of the Passive Stereo Equalizer is obviously based on the quality of its precisely matched analog filters, capacitors and inductors. But all user control and interactions are performed in the digital domain. This allows us to incorporate options and possibilities not found in any standard analog equalizer:
- Instant reset of all parameters
- Fast, accurate and repeatable adjustments
- Precisely linked stereo operation with single-control ease
- DAW automation and recall of all available parameters
The digital section of the passive stereo equalizer is based on a high-speed 32-bit microcontroller, with dedicated firmware programmed into its memory (with the possibility of updating the firmware via USB connection). It controls analog filter parameters, monitors the user interface, USB connectivity, and other SPE functions.
The Bettermaker Streo Passive Equalizer can communicate with your DAW via USB connection.
The unit appears as a HID device and can be managed through the Bettermaker Stereo Passive Equalizer plug-in.
You can program up to 32 snapshots of the passive stereo EQ state that can be triggered by automation.
This way, when you have a mastering session, you can trigger complete sets of parameters from song to song with just one command.
Additionally, the plugin itself offers a new hybrid approach to audio editing. In the Digital HPF section hides our famous 24dB/octave high pass filter with the activation button below. Above it, hidden under our recognizable “B”, you will find some adjustment functions, but also our very accurate FFT analyzer with approximation of digital and analogue passive filter curves.
Technical specification (all filters enabled, defined):
- Maximum input level: +24 dBu (balanced with 48kΩ input impedance)
- Maximum output level: +27 dBu (balanced with 50Ω + 50Ω output impedance)
- Nominal audio level: +4 dBu
- Frequency response: 7 Hz – 30kHz (- 0.5 dB, ISO-R40 sweep)
- Frequency flatness: +/- 0.2 dB (20 Hz – 20 kHz, ISO-R40 sweep)
- Dynamic range: 101 dB (20 kHz bandwidth, +24 dBu)
- THD+N ratio: 0.009% (20 kHz bandwidth, +4dBu, 1kHz)
- THD ratio: 0.0025% (+4dBu, 1kHz)
- CMRR: > 70dB (20Hz – 20kHz, IEC 60268-3)
- Crosstalk: > 88dB (20Hz – 20kHz, +18dBu, channel to channel)
- Maximum LF boost: 15 dB (set to 100 Hz)
- Maximum LF cutoff: 16 dB (set to 100 Hz)
- Maximum HF boost: 18 dB (all frequencies)
- Low boost/cut frequencies: 20, 30, 60, 100 Hz
- High boost frequencies: 3, 4, 5, 6, 8, 10, 12, 16, 20, 28 kHz
- High cutoff frequencies: 5, 10, 20 kHz
- Control resolution: 101 steps (Lo Boost, Lo Cut, Hi Boost, Bandwidth) and 34 steps (Hi Cut)
- Output gain: +/- 8 dB (0.1 dB resolution)
- Unit height: 2U
- Depth: 140 mm
- AC power consumption: 15W (2W in standby, with 100-240VAC power adapter
