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PreSonus ADL 700 Channel Strip

Presonus ADL 700
Presonus ADL 700
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List Price: $1,899.95
Our Price: $1,499.95

Availability: Discontinued
Product Code: 9999-12664


PreSonus ADL 700 Channel Strip

PreSonus ADL 700 Channel Strip

PreSonus ADL 700 Channel Strip Details

The PreSonus ADL 700 Channel Strip is Presonus' finest channel strip with no compomises! Stunning high-end sound and incredible versatility are hallmarks of this top-of-the-line, tube-driven channel strip. The ADL 700 integrates a proven, award-winning, boutique-quality preamp; a custom-designed FET compressor; and a custom, four-band, semi-parametric EQ. This premium channel strip boasts frequency response from 10 Hz all the way up to 45 kHz and offers all of the features you??d want in a high-end device. And the ADL 700 is a great value ?" as you expect from PreSonus!

Presonus created the ADL 700 because you insisted! The PreSonus ADL 600 two-channel tube mic preamp was such a hit with customers?"including such top artists, engineers, and producers as Chuck Ainlay, Jimmy Douglass, Mark Mancina, Demetric Collins, and Victor Wooten?"that Presonus was inundated with requests for a single-channel version in a channel strip, with a compressor and EQ that would be up to the preamp??s high standards.

You were right?"it was a great idea?"so Presonus gave the design job to Robert Creel, the engineering mastermind behind many of PreSonus?? most beloved analog circuits, including the XMAX preamp. It took years of hard work but he delivered big-time. The ADL 700 channel strip is everything Presonus?"and you?"hoped it would be!

Presonus started with a single-channel version of the ADL 600 preamplifier, which was co-designed by PreSonus and famed tube-circuit designer Anthony DeMaria. The preamp employs a distinctive Class A, discrete design that incorporates two 6922 and one 12AT7 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 resulted in an ultra-quiet tube preamp with a big, warm, smooth, clear, distinctive sound.

Beyond superb sound quality, the ADL 700??s preamp is special because of its ease of use and flexibility. Among the hallmark features of ADL-series preamps are separate, balanced XLR mic, balanced XLR line, and ¼? TS instrument inputs and a single, balanced XLR output. An Input Source Select switch enables you to leave your signal sources connected at all times and choose among sources, patching the selected input through the signal chain and completely bypassing the other two inputs. The preamp offers a choice of four mic-input impedances: 1500Ω, 900Ω, 300Ω, and 150Ω. 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.

In addition, the ADL 700 provides variable mic-input gain, employing an 8-position, military-grade, rotary switch that provides 35 dB of gain in stepped, 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 output stage is controlled by a fully variable attenuator that delivers ±10 dB of fine-tune trim adjustment, enabling you to dial in the perfect gain structure for any application.

The ADL 700??s FET (Field-Effect Transistor) compressor includes fully variable attack, release, threshold, ratio, makeup gain, and bypass controls. The compressors of two ADL 700s can be stereo linked allowing for more accurate stereo imaging. The ADL 700 compressor has a ??soft knee? compression curve. FET-based compressors such as the one in the ADL 700 use transistors to emulate a triode tube??s operation and 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??s 4-band semi-parametric EQ was designed to match the preamp and compressor, with musicality in mind. It combines isolated filters and optimized, per-band Q to provide subtle signal-shaping without harsh artifacts. All bands have Gain (±16 dB) and Frequency controls, with overlapping frequency ranges and fixed Q (0.55). The low and high bands are switchable between shelving and peak.

Would you rather have the compressor before the EQ in the signal chain or put the EQ first? Placing the compressor before the EQ allows you to make dramatic changes to the EQ settings without needing to alter the compressor setting. However, if you place the EQ before the compressor, you can better control different frequencies, achieving a more natural response. The ADL 700??s EQ>Comp switch provides the best of both worlds, allowing you the flexibility to chose which signal flow is right for your application at any given time. You also can independently bypass the compressor and the EQ using front-panel switches.

Of course, you get +48V phantom power, polarity inversion, and a 20 dB pad, controlled by big, sturdy, military-grade switches. You also get a -12 dB/octave high-pass filter, the frequency threshold of which can be set at 20 Hz, 40 Hz, 80 Hz, or 200 Hz?"or it can be turned off completely. It??s great for controlling room rumble and low-frequency noise. Presonus didn??t skimp on metering either. Fast-acting, eight-segment LED meters accurately detect fast transients and peaks. Large, backlit, dual-mode analog VU metering enables monitoring of output and gain-reduction levels. A -6 dB switch offsets the meter for use with hot source signals. A master level control adjusts the overall output from -80 to +6 dB.

As much as you??ll enjoy having one 2-rackspace ADL 700, you will absolutely love having a pair of them. You can even stereo-link the two compressor sections: When the Threshold control 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. With its extensive feature set, ultra-low noise (-100 dB S/N ratio), >73 dB gain, extended frequency response of 10 Hz to 45 kHz, and top-of-the-line sound, the ADL 700 is a superb creative tool for serious recording engineers and musicians.

PreSonus ADL 700 Channel Strip Features

  • Input/Output
    • 1 unbalanced ¼? instrument input (front panel)
    • 1 transformer-balanced XLR line input
    • 1 transformer-balanced XLR mic input
    • 1 transformer-balanced XLR line output
  • Tube preamp
    • High-voltage, all-tube, Class A, dual-transformer design with one 12AT7 and two 6922 vacuum tubes
    • Input-source select switch
    • Variable microphone input impedance (150, 300, 900, 1,500Ω)
    • 8-position Gain switch
    • Variable Trim adjustment for final stage
  • Fully variable FET compressor
    • Attack, release, threshold, ratio, makeup gain
    • Bypass switch
    • Stereo link
  • Four-band, semi-parametric EQ with bypass
    • Two peak mid bands
    • High and low bands switchable peak/shelving
    • Overlapping frequency ranges
    • Fixed Q (0.55)
    • Switchable pre-/post-compressor
    • Bypass switch
  • Meters, Controls, and Other Features
    • Ultra-low noise (-100 dB S/N ratio) and high gain (>73 dB gain)
    • Dual-mode analog VU metering (output and gain reduction)
    • -6 dB meter-offset switch (for metering hot signals)
    • Variable high-pass filter (20, 40, 80, 200 Hz)
    • 48V phantom power
    • Polarity-invert switch
    • -20 dB pad

PreSonus ADL 700 Channel Strip Specifications

  • Input Impedance
    • Microphone: Selectable, 150/300/900/1500Ω
    • Balanced Line: 2 kΩ
    • Instrument: 100 MΩ
  • Maximum Input Level
    • Microphone (1500Ω, +20 dB Pad out): +10 dBu
    • Microphone (1500Ω, +20 dB Pad in): +30 dBu
    • Balanced Line: +30 dBu
    • Instrument: +20 dBu
  • Gain Range
    • Microphone (1500Ω, +20 dB Pad out): +6 dB to +70 dB
    • Balanced Line: -20 dB to +40 dB
    • Instrument: -20 dB to +40 dB
  • Performance
    • Noise Floor (all inputs, minimum gain): -95 dBu (A-weighted)
    • Microphone Equivalent Input Noise (EIN): -123 dBu (A-weighted)
    • Frequency Response: 10 Hz to 45 kHz, ±1 dB
    • Maximum Output Level: +28 dBu (@ 0.5%THD+N)
    • Output Impedance: 50Ω
    • Tube Complement (per channel): (1) 12AT7A and (2) 6922
  • EQ
    • Type: 2nd-order shelving filter
    • Q: 0.55
    • Low Band (Low-pass or Bandpass): 20 Hz to 250 Hz, ±16 dB
    • Low-Mid Band: 160 Hz to 2 kHz, ±16 dB
    • High-Mid Band: 800 Hz to 8 kHz, ±16 dB
    • High Band (High-pass or Bandpass): 2 kHz to 20 kHz, ±16 dB
  • Compressor
    • Threshold Range: -20 dBu to +30 dBu
    • Ratio: 1:1 to 4:1
    • Attack Time: Fast (0.5 ms) to Slow (10 ms)
    • Release Time: Fast (30 ms) to Slow (500 ms)
    • Curve Type: Soft knee
  • Power: Internal supply, standard IEC connector: 115 or 230 VAC / 100W
  • Physical
    • 2U 19? rack-mountable, rugged steel chassis
    • Internal power supply with standard IEC connector
    • Chassis-ground link connectors (lift chassis ground)
    • Dimensions: 2U rackmount
    • Height: 3.5? (88.9 mm)
    • Depth: 17" (431.8 mm)
    • Width: 19? (482.6 mm)
    • Weight: 22.75 lb. (10.32 kg)

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Average Customer Review 4 of 5 Total Reviews: 1

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  0 of 0 people found the following review helpful:
A Silent and Secret Bass Champion December 9, 2016
Reviewer: Nino A from van nuys, CA United States  
I originally got the ADL to try with vocals-  It never really touched me the way i thought it would.   In today's age its hard to find one piece that works with everything you throw at it.   However- when i Risk-fully tried to record bass with it in one recording of a 5 time Grammy recording bassist.   He was blown away with the 3d image, tightness  he was getting in the recording.   He himself had a studio and left mine with one thing only on his mind- he was missing this masterpiece.      Again for vocals there are better but for bass and kick this thing is a beast-  A silent killer!  It also worked well with synths being run through it.   I couldn't find much use besides that for it. I dropped one star for it not being as versatile.  But a serious addition for some things.

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