Tube EQ
The Tube EQ is a guitar-pedal equalizer from Electro-Harmonix that uses two vacuum tubes. It combines a parametric mid band with high/low shelving and suits players who want tube warmth and tone shaping in a pedalboard or home studio. Discontinued in 2017.
- Parametric EQ with adjustable centre frequency, Q and gain
- High/low shelving filter for treble and bass
- Two 12AX7WA vacuum tubes included
- Expression pedal input sweeps centre frequency like a wah
- True bypass via mechanical relay
- 12VAC-1000 power supply included; discontinued 2017
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The Tube EQ is a vacuum tube equalizer in pedal form. Its parametric section lets the player choose the centre frequency and the Q, with a separate gain control setting how much of that frequency is boosted. A high/low shelving filter adds boost or cut for treble and bass.
An expression pedal input can sweep the parametric centre frequency, so the unit can also be used in a wah-like way. Bypass is true bypass, switched by a mechanical relay. The signal path runs through two 12AX7WA vacuum tubes, which are supplied with the unit, and the maker positions it as a way to warm up the signal chain in a home studio.
Power comes from the included 12VAC-1000 power supply. An owner's manual is available as a download from the maker. The model was discontinued in 2017, so it is mainly found on the used market.
Video
Tekniset tiedot
- Merkki
- Electro-Harmonix
- Malli
- Tube EQ
- Luokka
- Efektit ja pedaalit
Controls
- Equalizer type
- Parametric EQ with high/low shelving filter
- Parametric section
- Adjustable centre frequency, Q and gain
- Shelving filter
- High/low, boost or cut of treble and bass
Inputs
- Expression pedal input
- Yes, sweeps parametric centre frequency
Audio
- Tube type
- Two 12AX7WA vacuum tubes
- Bypass
- True bypass using a mechanical relay
Power
- Power supply
- 12VAC-1000 included
In the box
- Vacuum tubes
- Two 12AX7WA
- Power supply
- 12VAC-1000
Software
- Owner's manual
- Download available
Status
- Product type
- Parametric Tube EQ
- Discontinued
- 2017