SSL (Solid State Logic) / Pure Drive Quad

The SSL/Pure Drive Quad is a 4-channel microphone preamplifier that offers a transparent tone and two selectable drive sounds. It supports USB connectivity and ADAT/AES/EBU output. With four instrument inputs, it's recommended for those who want to enjoy a wide range of sound shaping when recording vocals or instruments.

■ Microphone Preamplifier

■ 4-channel

■ 2U

The PURE DRIVE is a multi-channel preamplifier based on the PureDrive preamplifier, which allows you to switch between the clean SuperAnalogue preamplifier sound and drive tones traditionally found in the ORIGIN, and further incorporates the new Asymmetric Drive, ADAT/AES/EBU digital connectivity, and an onboard USB interface.

The PURE DRIVE offers four microphone preamplifier input impedance options, allowing engineers to explore various tonal possibilities and match the preamplifier impedance to the microphone. Furthermore, each preamplifier features independent +48V phantom power, polarity inversion, and a high-pass filter. As one of the most high-performance and feature-rich outboard microphone preamplifiers, the PURE DRIVE provides professional producers and recording engineers with new sonic possibilities and workflows.

<3 Flavors, 1 Microphone Preamp>

The PURE DRIVE features SSL's advanced analog circuit design.

The PURE DRIVE's critical audio signal path uses no electromechanical components (potentiometers, mechanical switches, relays, etc.) to extend product life and enable perfect ""matching"" not only between stereo pairs but also between all channels. Analog circuitry is controlled by digital technology, and step control is employed to enhance reproducibility and precision.

Each microphone preamp in the PURE DRIVE offers SSL's traditional SuperAnalogue preamp sound, which captures clear details faithfully, and allows for independent switching between two different DRIVE modes: ""Classic Drive"" and ""Asymmetric Drive.""

In both DRIVE modes, the preamp responds to signal level and gain settings.

As the signal level and gain setting increase, second-harmonic distortion occurs first.

As the signal level/gain setting increases further, third-harmonic distortion components are added.

At even higher signal levels/gain settings, the third harmonic distortion component increases up to the clipping point, adding a slight compression to the transient signal.

Classic Drive is a drive mode that primarily adds odd harmonics, producing the same drive sound as that found in the ORIGIN console.

Asymmetric Drive is a new design for this PURE DRIVE rackmount preamp. It primarily adds even harmonics, increasing the thickness of the sound and providing softer transients.



The advanced connectivity of the PURE DRIVE expands recording possibilities. The abundant analog/digital I/O provides a preamp that delivers exceptional performance and flexibility, whether tracking a band in a world-class studio or adding warmth to stems in production. Furthermore, the built-in USB sound card makes it ideal for projects where quality cannot be compromised.

The PURE DRIVE features rear-mounted combo XLR inputs for microphones and lines, four Hi-Z/DI instrument inputs on the front panel (with automatic input detection), and insert return inputs that operate down to +24 dBu line level, enabling seamless connection with other professional equipment.

The PURE DRIVE's versatile digital connectivity delivers audio signals up to 32-bit/192 kHz to your DAW via its built-in USB sound card. It features AES/EBU and ADAT outputs.

Two PURE DRIVE QUAD units can be cascaded using the ADAT LINK IN connection to expand up to eight channels (QUAD only).

The AES and ADAT outputs can be used as DAW outputs from the onboard USB sound card, and it includes auto-ranging word clock input/output for robust digital clocking.

Features:

● SSL Super Analogue? Preamplifier

● Each channel features a clean Super Analogue preamplifier sound with two drive modes: Classic Drive / Asymmetric Drive

● Each channel has 48V phantom power, phase inversion, and a high-pass filter

● Four Hi-Z/DI instrument unbalanced inputs on the front panel (automatic input detection) (both QUAD and OCTO models have four DI inputs)

● Switchable between four microphone preamplifier input impedances.

- Allows setting the appropriate impedance for each microphone, such as dynamic microphones and ribbon microphones.

● Stepped gain control up to +65 dB gain

● 31-step output trim control (1 dB increments) - Overdrive the signal with the Gain control and adjust the level with Trim.

■ USB Audio Interface Mode

? QUAD - 4 Analog Inputs (Max 32-bit 192kHz)

? 12 Digital Outputs (4 AES + 8 ADAT @44.1/48 kHz)

* Activating USB Audio Interface Mode requires configuration on the unit itself.

* Output is AES+ADAT digital only; there is no analog output or monitoring function.


◇ ADAT, AES/EBU Digital Output

◇ Word Clock Input/Output

▲ 24 dBu Professional Line-Level Insert/Return Input

▲ Digital Control of Step Pots and High-Precision Analog Circuits

▲ Cascadable (QUAD only) with two PURE DRIVE QUAD units via ADAT LINK IN connection

▲ Auto Sleep Mode

Connections:

? Microphone Input: XLR-F (XLR/TRS Combo Jack)

? Line Input: TRS Phone (XLR/TRS Combo Jack) or D-Sub 25-pin

? Hi-Z Input: Phone (Front Panel)

? Insert/Return Input: D-Sub 25-pin

? Analog Output: XLR-M (QUAD) / D-sub 25-pin (OCTO)

? AES/EBU Digital Output: XLR-M

? ADAT Digital Output / ADAT LINK In (QUAD only)

? USB-C Digital Output

? Word Clock In/Out: BNC