Headphones amp for pedalboards & rehearsal (with mp3 AUX in).

This is a full stereo mixer with a headphones out. The standard input can be used to connect the signal from your pedalboard (stereo or mono) and the AUX-In can be used to connect a phone/mp3 player/sound card line out or other similar device.
Both inputs are mixed and routed to the headphones out to assist you on a “silent” rehearsal.

The device is also equipped with a TRS THRU output, this way whatever signal is routed to the input can also be picked up by any other device you’ll connect to the THRU output (like an amp, or another pedal) and it will remain unaffected because of the very high input impedance of the device’s buffer.

Internally a separate mixer circuit converts the Stereo Input signal to mono and routes it to the balanced XLR output.
The input volume control does not affect the level of the XLR out. The AUX-in signal does not output to the XLR.

- ST/M Toggle switch: allows you to select the type of signal (Stereo or Mono) that is being routed to the input. If you are working with a mono signal this toggle switch ensures that you will be hearing the same mono signal in both L+R channels of your headphones.

3 knobs:
- Input Volume knob
- AUX-IN volume knob
- Headphones-out volume knob

If any of the Input signals is too hot and causes distortion to your headphones just attenuate it from its respective volume knob.

**** Check photo section for a detailed signal flow chart ****

Technical specifications:
▹ Input impedance: 10Mohm
▹ THRU output impedance: equal to output impedance of the device you’ve connected to the input.
▹ XLR output impedance: 100ohm
▹ Circuit equipped with filters to avoid RF interference.
▹ Voltage Required: DC 9-12 Volt (12V will offer more headroom).
▹ Polarity: Negative tip
▹ Typical current draw: 40~200mA (depends on volume setting, and type of headphones)

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Triple Loop Parallel Stereo Blender [V3.0]
This is an all analog Stereo Blender that offers three independent parallel loops with tails capability, stereo/mono selection, dry blend,
master volume control and an indepedent Headphones-out with volume control.
Every loop has its own dedicated footswitch, Send/Return volume knobs, EQ, and phase reverse switch.

The device is able to handle signals varying from instrument level (guitar, bass, etc) up to higher line level (~24Vpp max). All jacks are TRS. It is compatible with mono signals as well. Mono FX-Loops can be combined wth Stereo FX-Loops.

--- Technical specifications:
▹ True Bypass (via analog IC switches, requires power)
▹ Supply Voltage required: 9V DC (center negative).
▹ Current draw: 280mA
▹ An internal circuit module provides the necessary Dual Rail voltage,
for maximum headroom and stability.
▹ Input signal level: up to ~24Vpp
▹ Input & Return impedance: 2MΩ
▹ Output & Send impedance: 100Ω
▹ Flat response on the whole span of the audio frequency spectrum.
▹ Master Gain: +6dB(V)
▹ Weight: 1.1kg (aprox.)
▹ Enclosure dimensions: 242 X 127 X 52mm (9.50 x 5.0 x 2.04 in.)

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4 input Stereo Mixer for stereo pedals, compatible with line level signals, can be used for synths as well. Also equipped with AUX mono-sum output. Details in the first comment.
#dpFXpedals #dpFX #stereosummingbox #stereopedals #stereomixer
#stereoeffects #parallelmixer #summingbox #boutiquepedals #pedalbuilder
#handpaintedpedals #handmadepedals #stereopedalboard #pedalseffects
#stereodevices #custompedals #greekpedals

Analog Stereo Parallel Blender, dual loop. It offers two independent loops, Dry blend & is able to handle signals varying from instrument level up to higher line level (~24Vpp max). All jacks are TRS.
(detailed specs in the first comment)

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#loopblender #handmadepedals #handpaintedpedals #pedalbuilder #pedaleffects #stereodevices #greekpedals

This is an active STEREO 4x4 Matrix Mixer with switches for unipolar/bipolar mode for each output column. The device's TRS inputs & outputs are AC-coupled and designed to actively reject any kind of crosstalk between them. It is suitable for instruments (guitar, bass, etc), synths, eurorack signals and any kind of line level signals.

Note: If you need a DC-coupled mixer with similar specs (e.g. in order to mix control voltages) you can contact us for such a customization with no extra cost.

Unipolar mode: In this mode all pots feeding the respective output behave in regular fashion, that is when the knob is fully counter-clockwise, no signal from the associated input passes into the mix. As the knob is advanced clockwise, a greater portion of the signal passes into the mix. (At max position there is unity gain.)

Bipolar mode (phase reversal): In this mode, each knob has a zero position mid-way through it's travel. Turning the knob anti-clockwise will add an increasing portion of a negative (phase inverted) version of the signal at the corresponding input, while turning the knob clockwise will add an increasing portion of the original signal to the mix.

The mixer works with standard 9V pedal power supplies which internally is converted to dual rail supply (-15V,0,+15V) in order to achieve greater stability, and maximum headroom for the ICs inside.

Specifications:
- TRS 6.35mm inputs & outputs
- Input impedance: 1Mohm
- Output impedance: 330ohm
- Required power supply: 9V (polarity: negative tip)
- Available headroom: ~26Vpp (21.5dBu)
- Current Draw: 200mA
- Enclosure dimensions: 188 x 120 x 56 mm (7.40 x 4.72 x 2.20 in)
- Weight: ~900gr

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Custom stereo mixer with TS ¼’’ (6.35mm) inputs/outputs. It can be used as a summing box for instrument or line level signals and can take up to 4 stereo input signals. (More specs in first comment)

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Dual Loop Stereo Parallel Blender. This is an all analog, full Stereo Parallel Blender that offers two independent loops and a Dry blend and is able to handle signals varying from instrument level up to higher line level (~24Vpp max). More specs in the first comment.

#dpFXpedals #dpFX #stereoblender #blenderpedal #pedalseffects
#stereopedals #stereoeffects #boutiquepedals #parallelblender
#loopblender #handmadepedals #handpaintedpedals #pedalbuilder #pedaleffects #stereodevices #greekpedals

3x Stereo Mixer with separate L/R controls, that can handle line level and Eurorack signals. (suitable for the Blackbox). Of course the mixer is also suitable for typical instrument level signals and can be interconnected with pedals and preamps. More details in first comment.

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4 input Stereo Mixer with additional mono AUX-out. Suitable for stereo pedals, compatible with line level signals, can also be used for synths. (detailed specs in the first comment)

#dpFXpedals #dpFX #stereosummingbox #stereopedals #stereomixer
#stereoeffects #parallelmixer #summingbox #boutiquepedals #pedalbuilder
#handpaintedpedals #handmadepedals #stereopedalboard #pedalseffects
#stereodevices #custompedals #greekpedals

Headphones amp for pedalboards. Full stereo, with AUX in, stereo/mono selection, volume controls & XLR mono sum out. More specs in the first comment.
#dpFXpedals #dpFX #dpeffects #headphonesamp #headphoneamp #headphonesampforpedalboards #boutiquepedals #pedalseffects #handmadepedals #pedalsandeffects #stereopedals #greekpedals #pedalbuilder