SPL GainStation 1 - Single Channel Mic Preamplifier W/ A/D Converter

Modern audio production relies increasingly on digital systems for recording and mixing processes (DAW's, digital consoles etc.). But still digital systems do not offer the same audio qualities and sound characteristics of high-end analog equipment. Especially digital equalizers and other aspects of the mixing domain cannot compete with the open, transparent sound of the best analog gear. So today more than ever, your input signal has to sound as good as possible—the quality of your original tracks will largely define the end result.

Attacking this problem on the preamplification front, with the goal of noticeably improving a signal and sending it along its path with a healthy foundation, requires a great deal of thought and engineering effort – like with the GainStation 1.

Lifeless or dynamically lacking signals are often over-processed with EQ, compression and other effects in an attempt to compensate—often an extremely tedious process in the digital domain that doesn't always produce the desired results. Thus it is most important to ensure the highest recording quality.

To this end, the GainStation 1 employs technologies that not only satisfy test equipment, but also—and most importantly—the user. Components and circuits were carefully chosen and designed on the basis of extensive measurements and listening tests.

Another important goal in designing the GainStation 1 was that the case itself should optimally adapt itself to modern production environments. It was to be as compact as possible, allowing easy transport and ergonomic placement in virtually any situation. A free-standing case which does not need to be rack-mounted has several advantages: not only are the inputs and outputs always easily accessible, but the unit can also easily be placed on top of an amp, outboard rack or even some keyboards, on your desk next to your laptop, or in direct proximity to a microphone to allow for maximum operational comfort and minimum cable lengths. Its very compact design allows for free placing also outside of a rack (e. g. close to the microphone). Musicians can place the GainStation 1 easily on a rack or amplifier. To accommodate portability, the optionally available SPL GainBag ensures safe transport of the GainStation 1 and offers additional storage for cables and an average-sized microphone. For more permanent installations, up to four GainStation 1's can be rack-mounted in one optionally available 3-unit mounting frame (not included with this product).

This cutting-edge technology ensures that signals recorded with the GS1 have more presence and substance and will easily cut through a mix even at lower levels. Extremely low-frequency signals are tight and transparent with clear intonation. Percussive transients are interpreted more precisely, which leads to a clearer rhythmic content and in turn a more solid rhythmic performance and perception.

A bassist using the GainStation 1 as a preamp will immediately notice that he hears and feels what he is playing much better, which leads to improved playing and a better recording. The track will have more punch and dynamics, greatly improved presence and almost palpable detail. In short, the instrument sounds incredibly authentic and alive. Beta-tests with the GainStation 1 showed that all instrumentalists enjoyed playing more and in many cases were truly amazed at what their trusty instrument was capable of.

Given this improvement in the input signal, one is much less inclined to equalize and compress—in many cases you will probably find that you can do without additional processing, which not only saves an enormous amount of time and processor power, but also has an extremely positive effect on the final result. The GainStation 1 itself offers effective sound-shaping capabilities at recording, most notably via the tube stage, which can be completely bypassed or continuously added to the preamp circuit, allowing everything from extremely subtle "warmth" to a very noticeable tube saturation effect. The integrated limiter can be used to protect an internal or external AD converter from clipping, or for example to add punch to drum tracks, which in turn reduces or in many cases even eliminates the need for subsequent compression. Put simply, the more tracks are recorded with the GainStation 1, the more solid and transparent—and easier to mix—the entire recording will be.

Like other converter-compatible SPL products, the GainStation1 also comes with an internal 24bit/96kHz analog to digtal converter module 1090.

Features

• Custom-designed and built, fully discrete, class A op-amps (no off-the-shelf stuff here). The GainStation's op-amps feature 60-Volt operating voltage—twice as high as most common op-amps—for an incredible dynamic range
• An extremely high amplifier slew rate of 200 V/microsecond, ensuring clean transmission of high-frequency signal portions and rapid transients with virtually no clipping
• An almost entirely DC-coupled signal path, making signal-degenerating condensers unnecessary
• An optimized layout guarantees the shortest possible signal paths, while generously proportioned grounding surfaces ensure low impedance and maximum shielding
• All switching functions are handled by encapsulated relays with gold-plated contacts
• All resistors are within 0.1% tolerance and were selected after extensive listening tests
• A no-compromise power supply with extensive additional shielding and seven separately wound and regulated voltages. The power supply is of primary importance to audio quality; its importance should not be underestimated
• A tube stage utilizing premium MKP foil condensers and a select 12 AX7 LPS tube for clear, dynamic audio

24Bit/192kHz AD Converter Module (1090)
The Analog/Digital Converter Module 1090 is a digital output for compatible GainStation 1 with a plug-and-play design for easy installation. It offers an S/P-DIF output with both coaxial and optical connectors in parallel. The heart of the module is a 24-bit converter with a variable sample rate of up to 192 kHz. Highly accurate quartz oscillators ensure a clean, low-jitter master clock.

The internal sample rate can be switched between 44.1, 48, 88.2 and 96 kHz. Other sample rates (32, 176,4 and 192 kHz are set by external syncronization. The converter can be synced to other digital devices via a S/P-DIF input. The internal oscillators are automatically disabled when an external clock signal is present to prevent interference.An extremely effective voltage stabilizing circuit ensures that the converter continuously receives sufficient and stable voltage – an important prerequisite for clean, transparent audio. The compact design of the input stage guarantees the shortest possible signal path to the converter. Over dimensioned grounding surfaces on both sides of the circuit board effectively reduce interference and ensure optimal separation between analog and digital components.