U2B. Unbalanced-to-Balanced converter (active DI Box)

This is a simple, active converter (transformerless) that takes an Unbalanced signal and converts it to Balanced while also offering an independent THRU output so that you still have the unbalanced signal available for any further use. The device is suitable for instrument level or line level signals as well and is noiseless.
A volume knob is available for the Balanced output that ranges from Mute (at min) up to unity gain (at max).

A high input impedance and low output impedance ensures that your signal will be routed to the interconnected devices without any tone loss and preserving its original fidelity even if you use long cables.
You can power the device with a DC Voltage ranging from 9V to 24V.

Please do not connect phantom power to the XLR output or it might lead to circuit damage. Although the capacitors of the XLR output canwithstand the 48V of the phantom power for a short period of time, leaving the phantom power ON for long periods can eventually cause damage.

- Input impedance: 10MΩ
- THRU Output impedance: 100Ω
- Balanced output impedance: 200Ω
- Voltage required: 9-24V DC
- Polarity: Center negative
- Current consumption: 8mA @ 9V
- Available Headroom vs Power supply: 7Vpp@9V, 10Vpp@12V, 22Vpp@24V
- Enclosure dimensions: 114x60x32mm (4.43x2.38x1.22in)
- Weight: ~170gr

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This is an active, mono-signal, volume attenuator.
The active circuitry can easily handle signals up to 24Vpp (approx. +20dBu).
It only requires a power supply of 9V, however a dedicated internal module converts the 9V single supply to dual rail voltage supply (+15,0,-15) in order to properly power its active circuit and provide maximum headroom at the input (~24Vpp).

The one and only potentiometer on the pedal let's you choose the level of attenuation: From 0dB at max position down to mute at min position.
The attenuator is buffered and it offers high input impedance and low output impedance in order to maintain the fidelity and tone of your audio signal.

IMPORTANT NOTE: This is a volume attenuator, NOT a power attenuator. Do not use it as a load between a power amp and a speaker.

---- Technical specifications: ----
▹ Supply Voltage required: 9V DC (center negative)
▹ Current draw: 20mA
▹ An internal circuit module provides the necessary Dual Rail voltage, for maximum headroom.
▹ Input signal level: up to ~24Vpp
▹ Input impedance: 2MΩ
▹ Output impedance: 100Ω
▹ Flat response on the whole span of the audio frequency spectrum.

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This is a Stereo Preamp capable of handling Instrument Level signals and Line Level signals as well. It can take an instrument level signal and boost it up to line level, and even further.

Specifications:
▹ Input impedance: 10MΩ
▹ Output impedance: 100Ω
▹ Boost up to +30dB
▹ Max input voltage swing: ~7.5Vpp (Input/Output knobs at max. Boost at min.)
▹ Max output voltage swing: ~24Vpp
▹ Standard TRS jacks (6.35mm, 1/4")
▹ Supply required: 9V DC (negative tip)
▹ A dedicated internal circuit takes the 9V supply and converts it to dual rail supply (+15V, 0, -15V) in order to provide the maximum possible headroom.
▹ Current draw: 45mA
▹ RF filters at the input prevent any unwanted wireless interference (e.g. radio signals etc) from entering to the audio path.

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Stereo Mixer with separate L/R controls suitable for Line Level and Eurorack signals, capable of handling line level signals up to ~24Vpp without distorting.

You can even use it with Eurorack signals or even 'hotter' signals, for example you can combine it with the 1010music Blackbox.

Of course the mixer can be also used with typical instrument level signals (e.g. with other pedals or preamps)

Specifications:
▹ 3 TRS inputs / 1 TRS output
▹ Input impedance: 1Mohm
▹ Output impedance: 100ohm
▹ Required power supply: 9V (internal dual rail converter -15V, +15V)
▹ Current Draw: 180mA
▹ Enclosure dimensions: 188 x 120 x 38 mm (7.4 x 4.72 x 1.46 in) aprox.
▹ Weight: ~780gr

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