High Gain Stereo Microphone Preamplifier
mit Curve Shaper EQ
- Stereo Mikrofon Vorverstärker mit 81dB Gain
- Cleaner und weicher JFET Sound
- High Frequency Curve Shaper EQ
- Low Frequency Proximity Control
- No Load™ 63kOhm High-Impdanz Design
- High Resolution & High Impedanz DI Inputs
- Mic/Line Mode mit Post-Mic und Pre-EQ Inserts
The AEA RPQ2 Ribbon Preamp provides two channels of high-quality, high-gain, low-noise preamplification with a rich and musical sound that complements the natural tonality of your microphone. Specifically designed for ribbon microphones, the RPQ2 excels at drawing out the warmth and lush sound that ribbons are uniquely known for. With 81dB of gain, JFET circuitry, and an input impedance of 63K Ohms, the RPQ2 delivers the precision, quietness, and headroom needed for today's high-resolution recordings.
The RPQ2 is AEA’s second iteration of the high-performance RPQ preamp with the addition of some new and useful features. It is now possible to plug your instrument directly into the RPQ2’s high impedance circuit with its front-panel direct inputs. The RPQ2 also includes a Mic/Line switch for balanced line inputs and outputs, as well as inserts for patching compressors or other effects between the preamp and CurveShaper™ EQ section. The RPQ2's CurveShaper™ EQ gives you the tools to control your ribbons right at the start of the signal path. Switchable and tunable low frequency (LF) and high frequency (HF) controls allow you to tame proximity problems and provide high-frequency extension and slope control.
Engineers have discovered that the RPQ2 is a perfect fit with condensers and moving coil microphones. By virtue of its sonic qualities and versatility, the AEA RPQ2 is the tool of choice for all microphones whenever a true and pristine signal path is desired. Detailed and accurate, the AEA RPQ2 is a high-quality, high-gain choice for all microphones.
Two Peas in a Pod: Musical Preamp, Sweet EQ
The CurveShaper’s™ high-frequency filter boost enables you to add a little extra “presence” or “air” to your source. The circuit functions in a similar manner to a conventional parametric shelving boost, but with a significant difference: the slope varies as both the CurveShaper™ and HF Gain controls are adjusted. This unique bell curve was designed with the intention to compensating for the high-frequency roll-off that is inherent to most ribbon microphones. But beyond ribbon mics, the smooth HF filter is remarkably well suited for brightening up condenser microphones used at a distance, restore presence in overly “dry” acoustical environments, or even as a clean and transparent air-band boost on the 2-bus.
The CurveShaper’s™ low-frequency control easily removes boxiness and boominess in a fast and unobtrusive way. Ribbon microphones are capable of delivering strong subwoofer lows, and can have a significant bass proximity effect. Such strong low-frequency content can mask high-frequency intelligibility, so the tunable LF filter was engineered to tame low-frequency energy to appropriate levels. Its -20dB shelving curve is ideally suited to reduce excessive proximity effect, opening up new possibilities to use ribbons in close-up applications.For best voltage transfer, the impedance of the preamp should be at least five times the microphone’s output impedance. Many microphones have a nominal impedance of about 200 Ω, leading to the assumption that a preamp impedance of 1.0 to 1.5K Ω should be fine. However, passive microphones, and ribbons in particular have an output impedance that rises towards low frequencies and can easily get as high as 1000 Ω at resonance, resulting in a 6 dB loss at this frequency with a low impedance preamp. A preamp impedance of significantly more than the commonly seen 1.0 to 1.5K Ω is beneficial for all passive ribbons and moving-coil microphones.
All AEA preamps have input impedances of at least 10K Ω for these reasons. Microphone loading because of low impedance preamps can lead to interesting creative results, but AEA’s NoLoadTM inputs will guarantee highest sensitivity and bandwidth in all situations.
High Gain Stereo Microphone Preamplifier
Stereo Ribbon Preamplifier mit Curve Shaper EQ, 19" 1U
AEA Audio Engineering Associates
Pasadena, California, USA
The AEA Story
The AEA R44C, a faithful recreation of the iconic RCA 44 microphone.
In 1976, we began servicing ribbon microphones, and by 1998 we were manufacturing 100% of the parts for the RCA 44. We decided to release our version of the 44 and thus was born AEA Ribbon Mics.
Owning an AEA product means that you are serious about what you do and that you want to use gear made with the same love and dedication as your music. An AEA microphone or preamps reflect the amount of work you have put into honing your art as a musician. It stands for the traditional craftsmanship that has gone into your Les Paul guitar. And it mirrors the meticulous attention to detail you put into your sessions. All AEA products reflect the pride and an eye for detail and are designed for serious musicians and engineers.
AEA is a family-owned and operated business in beautiful Pasadena, California. Wes and his colleague, Bob Gerbracht, founded the company in 1964. Since then, AEA's mission has always been to build professional tools that faithfully capture the essential aspects of excellent recordings: true musicianship and a passion for performance.
In 1976, when General Electric bought RCA and closed down its microphone division, AEA began servicing these legendary ribbon mics that Wes had learned so much about from friends like Wally Heider and Dick Knoppow. We reissued our favorite microphone, the iconic 44 ribbon mic, and have continued to make ribbon microphones in the RCA tradition to this day. We at AEA take sonic integrity seriously and have even created preamps that have specially designed to meet the particular challenges of ribbon mics and bring out their full potential.
Proudly independent, we manufacture all our products by hand right here in the USA.