Multi-band equalizers, EQ preamps and small line mixers for home and car audio.
Douk Audio T8PRO 7-Band EQ Tube Preamp — read reviewLine preamp with a genuine 7-band equalizer (50Hz-16kHz), balanced XLR and RCA inputs and outputs, a balance control and a pluggable Soviet 6H1N-BN tube stage for warm, rollable tube tone.
Douk Audio D5 4-Way Switcher 5-Band EQ — read reviewA 4-in-1-out switcher and 1-in-4-out splitter with a 5-band equalizer from 80Hz to 10kHz, EQ bypass, a built-in headphone amp and a large analog VU meter with 6-level backlight.
Douk Audio EQ5 Mini 5-Band EQ Preamp — read reviewA pocket-sized 5-band equalizer at $64.99 built on five JRC4558 op-amps, one per band, with a bypass button for untouched sound, gold-plated I/O and USB-C power for home or car use.
Douk Audio EQ7 7-Band Equalizer Preamp — read reviewA 7-band stereo equalizer and preamp spanning 32Hz to 10kHz with +/-10dB per band, true balanced XLR output converted from RCA, dual VU meters and a volume knob.
Douk Audio EQ5-TONE EQ Equalizer Bluetooth — read reviewA 5-band stereo equalizer and preamp with bands at 75Hz through 10kHz, each processed by its own op-amp, plus Bluetooth 5.0 streaming and twin 45mm VU meters. A bypass switch takes the EQ out of the signal path entirely.
Douk Audio T7 7-Band Equalizer Preamp — read reviewA desktop 7-band stereo equalizer and preamp with true balanced XLR and single-ended RCA inputs and outputs, 64Hz-8kHz band control, and a bypass mode for comparing processed and original sound.
Douk Audio MC5-BX 4-Channel Audio Mixer — read reviewA pocket line mixer with four 3.5mm inputs and one 3.5mm output, each channel with its own level knob. Run it in passive mode with no power at all, or active over USB-C for a stronger, amplified mix.
Douk Audio MX5 4-Channel Audio Mixer — read reviewA compact 4-channel line mixer with per-channel mono/stereo switching, individual volume knobs, and dual-color LED level meters, powered from DC5V.
Nobsound EQ9 9-Band Stereo EQ Preamp — read reviewA 9-band analog equalizer preamp with ±6dB per band, dual RCA in/out pairs, a bypass switch, and a balance control, in a shielded aluminum case.