PreSonus has announced its latest flagship product, the ADL 700 channel strip, which combines a Class A tube preamplifier with a fully variable, FET-based compressor and a four-band semi-parametric equalizer. The new channel strip provides separate balanced XLR mic, balanced XLR line, and quarter-inch TS instrument inputs and a single balanced XLR output.
The ADL 700 incorporates a single-channel version of the popular PreSonus ADL 600 two-channel tube preamplifier, which was designed by tube-circuit designer Anthony DeMaria. PreSonus and DeMaria teamed up to create a distinctive Class A, discrete design. It incorporates one 12AT7 and two 6922 vacuum tubes per channel, operating with ±300V power rails for maximum headroom and superb tone. The dual-transformer design ensures low-noise operation, with maximum common-mode rejection. This results in an ultra-low-noise tube preamp with a big, warm, smooth, clear, distinctive sound.
Among the hallmark features of ADL Series preamps is an Input Source Select switch with variable mic-input impedance. This switch enables you to choose among signal sources and patches the selected input through the signal chain, bypassing the other two inputs. It also provides a choice of four mic-input impedances: 1500, 900, 300, and 150 ohms. Lowering or raising the ADL 700 mic-input impedance can create subtle coloring and filtering effects, enabling you to get a wider variety of tonalities without using the EQ.
The ADL 700's FET-based compressor and semi-parametric EQ were custom-designed by Robert Creel, the man behind PreSonus' most popular analog circuits, including the XMAX preamp. FET (Field-Effect Transistor) compressors use transistors to emulate a triode-tube sound. This type of compressor generally provides a faster attack time and better repeatability than the optical compressors that are more commonly found in channel strips in this price class.
The ADL 700 compressor features include fully variable attack, release, threshold, ratio, makeup gain, and bypass. When Threshold is turned fully counterclockwise to the ST position, the onboard compressor controls are bypassed, and compression is controlled externally via a Stereo Link connection to a second ADL 700.
The preamp offers 48V phantom power, polarity reverse, and a -20 dB pad. In addition, it provides variable mic-input gain, employing an 8-position rotary switch that provides 35 dB of gain in 5 dB increments. A Trim potentiometer (±30 dB) allows you to make fine adjustments to the final preamp stage of the ADL 700 input.
The ADL 700 will be available in Q4 of 2012.
Contact: PreSonus | presonus.com