Universal Audio - 4-710D

The Universal Audio 4-710d is equipped with 4 710 Twin-Finity preamps. The 710 was created specifically to add the versatility and sonic inspiration missing from generic preamplifiers on the market. Its sonic versatility comes from its innovative circuitry, including a solid-state trans-impedance input signal amplification circuit that simultaneously powers a solid-state gain circuit and a tube gain circuit — both of which are perfectly in tune. phase. These two stages are then mixed towards a common output.

The mixing between the 310 Volt output signal of the triode stage configured in Class A and the semiconductor trans-impedance stage is controlled by the “dosing” button marked “∞””. The mix is ​​completely variable between 100% tube and 100% solid state, allowing for an endless palette of unique preamplifier sounds and the ability to create your own sound.

Like all Universal Audio preamplifiers, the 4-710d is equipped with dual gain settings (Gain/Level) which can extremely modify the coloring and distortion brought to the signal by letting you increase the input gain as with a guitar amp .

The VU meters of each of the 4 x 710 are equipped with a unique “Drive” mode allowing you to visualize the saturation of the input stage. This versatility makes the 4-710d the ideal preamp for your pickup collections. Additionally, the JFET DI In direct input circuit can easily handle connection to an electrical instrument. Guitarists and bassists will appreciate the 4-710d's ability to get the best sound possible from passive or active pickups.