Solid State Logic SSL Pure Drive Quad 4-Channel Microphone Preamplifier

The SSL Pure Drive Quad harnesses Solid State Logic's renowned SuperAnalogue PureDrive microphone preamp technology, originally featured in the ORIGIN console. This advanced unit introduces a new DRIVE mode, comprehensive connectivity, and state-of-the-art digital conversion, all within a compact 4-channel 2U rackmount format.

Building on the SSL Origin Console's Legacy

The ORIGIN recording console, a contemporary classic from SSL, first introduced the groundbreaking PureDrive microphone preamplifier. This innovative preamp maintains the clarity and punch of SSL's previous designs while also offering the flexibility to switch its character to a warm, harmonically rich, and driven tone that varies with gain.

ORIGIN, in combination with the PureDrive microphone preamp, has left an indelible mark on the world's top recording studios. Whether you're capturing the delicate nuances of a piano concerto in PURE mode or adding warmth to a drum recording in DRIVE mode, the PureDrive™ microphone preamp has become an indispensable tool in some of the industry's most prestigious studios and recording facilities due to its versatility and exceptional sonic characteristics.

PURE DRIVE QUAD continues the Origin legacy into rack format, delivering four microphone preamps with ORIGIN's renowned PURE and DRIVE modes. However, it takes it further, adding a new 'Asymmetric' DRIVE, advanced digital connectivity, and an onboard USB interface.

One Mic Pre, Many Flavours

PURE DRIVE QUAD… read more is one of the most capable and feature-rich outboard microphone preamplifiers available. It introduces a host of new sonic possibilities and workflows for the discerning producer and recording engineer.

PURE DRIVE QUAD is a testament to SSL's commitment to progressive analogue circuit design. No electro-mechanical components (potentiometers, mechanical switches, relays, etc) are used in the critical audio signal path of PURE DRIVE QUAD, increasing product longevity, and allowing impeccable 'matching' between all channels -- not just a stereo pair. Using digitally controlled analogue circuits, controlled by detented pots and electronic switches, simplifies recall and precision of settings.

PURE DRIVE QUAD's mic pre's can be independently switched between three distinct DRIVE modes: Clean, Classic Drive, and Asymmetric Drive.

Clean mode (White) delivers the highly regarded, ultra-low noise floor, linear SSL preamp that is recognised for its ability to faithfully capture the sound of the source with exceptional clarity and detail.

Classic Drive (Amber) is the symmetrical mode that generates predominantly odd harmonics; the same drive sound found on the ORIGIN console.

Asymmetric Drive (Green) offers a new colouration option specifically designed for the PURE DRIVE range. It makes the even harmonic content dominant and provides more pronounced thickness, colouration, and softening of transients.

PURE DRIVE QUAD offers four mic preamp input impedance options, enabling engineers to match the mic pre's impedance closely to the microphone or even change the tonality of the input signal (on ribbon and dynamic mics). This gives further creative control when recording with the PURE DRIVE preamps.

Each mic pre includes independent +48V phantom power, polarity inversion, and a sweepable High Pass Filter.

PURE DRIVE QUAD features three independent controls:
GAIN - Stepped Gain control up to +65 dB Gain
TRIM - 31-step Trim control, with precise 1 dB increments - overdrive the signal with the Gain control and then reduce to a suitable level using Trim.
HPF - Variable High Pass filter going up to 300Hz.

PURE DRIVE QUAD's advanced connectivity opens a world of recording possibilities. Its comprehensive selection of analogue and digital I/O offers microphone preamps with exceptional performance and flexibility, whether you're tracking a band in a world-class studio or adding warmth to stems in a production scenario. Thanks to its integrated USB sound card, it's also ideal for project studios and on-location sessions where quality cannot be compromised.

PURE DRIVE QUAD's advanced connectivity opens a world of recording possibilities. Its comprehensive selection of analogue and digital I/O offers microphone preamps with exceptional performance and flexibility, whether you're tracking a band in a world-class studio or adding warmth to stems in a production scenario. It's also ideal for project studios and on-location sessions where quality cannot be compromised, thanks to its integrated USB sound card.

PURE DRIVE QUAD features four rear-mounted combo XLR inputs, four front-panel Hi-Z/DI instrument inputs with automatic input detection, and three sets of D-sub connectors for line-level inputs, as well as insert send and insert return. PURE DRIVE QUAD's insert returns/ADC inputs operate up to full +24 dBu line-level, for interfacing with other professional equipment.

Features:

- 4-channel high-performance PureDrive mic preamps
- +48V phantom power, polarity invert, and 3rd order hi-pass filter
- Stepped Gain control up to +65 dB Gain
- 31-step Trim control, with precise 1 dB increments - overdrive the signal with the Gain control and then reduce to a suitable level using Trim.
- 3 modes for each preamp: Clean, Classic Drive, and Asymmetric Drive
- Mic/Line Input Switching: Mic via XLR, Line via choice of TRS Jack or dedicated D-Sub connectivity
- 4 x front panel Hi-Z/DI Instrument unbalanced inputs with automatic input detection
- 4 mic preamp input impedance options - explore new tonal possibilities from your dynamic and ribbon microphones
- Balanced analogue outputs/insert sends for external processing
- +24 dBu professional line level insert returns/ADC inputs
- Analogue to digital connectivity via ADAT, AES, and USB
- Ability to switch ADAT and AES connections to source audio from DAW outputs (USB) instead of the A/D converter
- USB soundcard mode: QUAD - 12 in / 12 out (@44.1/48 kHz); 4 x analogue + 8 x ADAT in (via Link in) / 4 AES + 8 ADAT outs
- Stepped pots and digitally controlled analogue electronics for precision, stereo matching, and ease of recall
- Up to 192 kHz and 32-bit conversion, professional I/O levels (+24 dBu = 0 dBFS).
- Selectable Auto-Sleep mode
- Auto-ranging Wordclock In and Out

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