USER MANUAL
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Thank you for purchasing Bettermaker Stereo Passive Equalizer!
IMPORTANT SAFETY INFORMATION
Do not operate this unit in the presence of rain, liquids or condensing moisture. Liquid entering theproduct enclosure presents the risk of electric shock, fire or permanent failure. Use the unit in well ventilated
enviroment. Make sure it is not exposed to high temperatures as it might affect the performance.
Use provided AC/DC adapter only. It will work with variety of mains voltages and all most popular socket types
around the world.
No user serviceable parts are available inside the unit. Do not remove the top lid, as it will void the warranty.
In case of any questions or issues, please contact your seller.

CONNECTIONS
For best audio performance use balanced XLRs and quality USB cables (like the one provided with this unit).
Please note that the USB link is for DAW control and recall only. It does not stream audio, so the XLR
connection with AD/DA converters is needed.
The unit requires external power supply and will not work using USB power only.
SOFTWARE
For most recent versions of firmware and DAW plugins please visit www.bettermaker.com

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POWER
BUTTON
Hold for
ON/STAND-BY

PA S S I V E

E Q UA L I Z E RLOWFREQUENCY
BOOST
KNOB

LOW
FREQUENCY
CUTKNOBENGAGE
BUTTON withTRUE BYPASSLOWFREQUENCY
SELECTOR
BUTTONS3B E T T E R M A K E R

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BIG FANCYBETTERMAKER
LOGO

HIGH
FREQUENCY
BOOSTKNOBBANDWIDTHKNOB for
HIGH BOOSTHIGH BOOSTFREQUENCY
SELECTOR
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GAIN BUTTON EXPLAINEDIn normal mode all five knobs control various sections of the passive filter. When theGAIN button is pressed the HIGH CUT knob changes its function and allows to adjust
the output level of the unit within +/- 8dB range.
Press the GAIN button again to return to normal mode.
To set the unit to flat frequency response (all filters set to zero) hold the GAIN button
for 2 seconds. All controls on the front panel will blink and the unit will set back todefaults.

HIGH
FREQUENCY
CUTKNOBHIGH CUTFREQUENCY
SELECTOR
BUTTONSGAIN SET &RESET TO
DEFAULTS
BUTTON

More details above..

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FIRMWARE UPDATEYou can easily update the firmware inside the unit with dedicated macOS/Windows app available on
www.bettermaker.com
But first, you need to switch the unit to firmware update mode. Simply hold the GAIN button while powering
on with ON/STBY – the button will start to blink rapidly. Follow the instructions provided in the updater
application.
If you decide to abandon the firmware update procedure (not recommended if the process has already begun),hold the ON/STBY button for 5 seconds.
STATE MEMORYInternal non-volatile memory will restore all settings after sudden mains power loss. It will also remember last
ON/Standby choice and provide power cycle counter and up-time clock.

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E Q UA L I Z E RTECHNICAL SPECIFICATION
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 (20Hz – 20kHz, ISO-R40 sweep)
Dynamic range: 101 dB (20kHz bandwidth, +24dBu)
THD+N ratio: 0.009 % (20kHz bandwidth, +4dBu, 1kHz)
THD ratio: 0.0025 % (+4dBu, 1kHz)
CMRR: > 70dB (20Hz – 20kHz, IEC 60268-3)
Crosstalk: > 88dB (20Hz – 20kHz, +18dBu, channel to channel)
Max LF boost: 15 dB (set to 100 Hz)
Max LF cut: 16 dB (set to 100 Hz)
Max 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 cut frequencies: 5, 10, 20 kHz
Control Resolution: 101 steps (Lo Boost, Lo Cut, Hi Boost, Bandwidth) & 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 included 100-240VAC power adapter)
Shipping weight & dimensions: 3kg, 60x30x20 cm

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