LEHLE LITTLE DUAL (DISCONTINUED)
Artikel-Nr.:
1014
The LEHLE LITTLE DUAL is the LEHLE DUAL SGOS's little sister, a maximum signal-fidelity amp switcher for two amps. Both amps are activated simultaneously using the left footswitch, while the right is used to switch back and forth between them. High-intensity LEDs make it easy to read off switching state A or B, or A and B, even under high-power spots.
The centerpiece of the LEHLE LITTLE DUAL is its high-end LEHLE TRANSFORMER HZ transformer, which electrically isolates output A from output B, making history of hum loops - permanently! The LEHLE LITTLE DUAL features a gold-plated-contact phase inverter and a gold-plated-contact ground switch. The two inputs can also be routed in stereo to outputs A and B, if you use the stereo signal of an effect unit as the input, for example. This also makes it possible to route instruments equipped with two pick-ups, including many acoustic and hybrid guitars, and also double basses, via two amplifier systems - with no complications. These systems can be operated either in alternation or in parallel - without hum, and without sound losses, needless to say! The LEHLE LITTLE DUAL - small, but so utterly effective!
Hersteller:
Lehle GmbH · Grenzstr. 153 · 46562 Voerde / Germany · support@lehle.com
Ich habe folgende Frage zum Produkt LEHLE LITTLE DUAL (DISCONTINUED) (Artikel-Nr.: 1014)
Q: What is galvanic isolation?
A: Background noise, generated by ground loops, occurs again and again when two electronic devices are connected to each other, and the LEHLE LITTLE DUAL provides a simple but extremely effective remedy when installed between the two units. The two devices are galvanically isolated when the 'A' output is used, eliminating this background noise.
The protective earth conductor and the ground connection of the audio signal create a loop which will pick up external interference generated, for example, by coils. Such interference will impair the signal. The LEHLE TRANSFORMER HZ transformer included in the LEHLE LITTLE DUAL galvanically isolates the ground connection. The hum loop is thus broken at this point.
The protective earth conductor and the ground connection of the audio signal create a loop which will pick up external interference generated, for example, by coils. Such interference will impair the signal. The LEHLE TRANSFORMER HZ transformer included in the LEHLE LITTLE DUAL galvanically isolates the ground connection. The hum loop is thus broken at this point.
Q: Ändert sich durch die galvanische Trennung mein Sound?
A: Nein, der
Sound und die Dynamik ändern sich nicht, das Signal durchläuft den
Schalter verlustfrei. Wir setzen hierzu die selbst entwickelten
LEHLE TRANSFORMER HZ ein und gewährleisten durch den Einsatz
hochwertiger Komponenten eine neutrale Wiedergabe über das gesamte
Frequenzspektrum.
Q: Eignet sich das Ausgangssignal des LITTLE DUAL II auch für Mixer/Recorder? Ich würde gerne gleichzeitig über meine Effekte spielen und ein trockenes Signal aufnehmen für ein späteres Re-amping.
A:
Das ist kein Problem, wobei man unbedingt am Mischpult bzw. Recorder
einen HiZ-Instrumenteneingang verwenden sollte, ansonsten wird das
Instrument leblos klingen. Das Signal kann auch wahlweise durch Einsatz
eines TRS >XLR-Kabels symmetrisch abgegriffen werden.
Q: Can I use the LITTLE DUAL for acoustic guitars with onboard preamp?
A: Absolutely! The switcher works passively and can handle all kinds of audio signals without distortion or loss, for weaker piezo signals as well as stronger line level signals.
Q: Can the LITTLE DUAL be used as DI box since it has 1/4" sockets?
A:
Yes, you get a balanced or unbalanced (mono-) signal from transformer-isolated output A when using a stereo (TRS) cable.
Q: Does it affect the sound and dynamics of my instrument when I use the LITTLE DUAL without power supply? In the manual it says the power is only for the LEDs.
A:
It makes no difference since the switcher works passive. Power is indeed
only for the LEDs, neither dynamics nor sound will be altered in any
way.
Q: What is galvanic isolation?
A: Background noise, generated by ground loops, occurs again and again when two electronic devices are connected to each other, and the LEHLE LITTLE DUAL provides a simple but extremely effective remedy when installed between the two units. The two devices are galvanically isolated when the 'A' output is used, eliminating this background noise.
The protective earth conductor and the ground connection of the audio signal create a loop which will pick up external interference generated, for example, by coils. Such interference will impair the signal. The LEHLE TRANSFORMER HZ transformer included in the LEHLE LITTLE DUAL galvanically isolates the ground connection. The hum loop is thus broken at this point.
The protective earth conductor and the ground connection of the audio signal create a loop which will pick up external interference generated, for example, by coils. Such interference will impair the signal. The LEHLE TRANSFORMER HZ transformer included in the LEHLE LITTLE DUAL galvanically isolates the ground connection. The hum loop is thus broken at this point.
Q: Ändert sich durch die galvanische Trennung mein Sound?
A: Nein, der
Sound und die Dynamik ändern sich nicht, das Signal durchläuft den
Schalter verlustfrei. Wir setzen hierzu die selbst entwickelten
LEHLE TRANSFORMER HZ ein und gewährleisten durch den Einsatz
hochwertiger Komponenten eine neutrale Wiedergabe über das gesamte
Frequenzspektrum.
Q: Eignet sich das Ausgangssignal des LITTLE DUAL II auch für Mixer/Recorder? Ich würde gerne gleichzeitig über meine Effekte spielen und ein trockenes Signal aufnehmen für ein späteres Re-amping.
A:
Das ist kein Problem, wobei man unbedingt am Mischpult bzw. Recorder
einen HiZ-Instrumenteneingang verwenden sollte, ansonsten wird das
Instrument leblos klingen. Das Signal kann auch wahlweise durch Einsatz
eines TRS >XLR-Kabels symmetrisch abgegriffen werden.
Q: Can I use the LITTLE DUAL for acoustic guitars with onboard preamp?
A: Absolutely! The switcher works passively and can handle all kinds of audio signals without distortion or loss, for weaker piezo signals as well as stronger line level signals.
Q: Can the LITTLE DUAL be used as DI box since it has 1/4" sockets?
A:
Yes, you get a balanced or unbalanced (mono-) signal from transformer-isolated output A when using a stereo (TRS) cable.
Q: Does it affect the sound and dynamics of my instrument when I use the LITTLE DUAL without power supply? In the manual it says the power is only for the LEDs.
A:
It makes no difference since the switcher works passive. Power is indeed
only for the LEDs, neither dynamics nor sound will be altered in any
way.