500 Series Signal Processors
500 Series modular processor, preamp, compressor, EQ, and more!
Customize your rack with all the right tools for the job.
Sonic Circus offers 500 Series from API, Rupert Neve, SSL, Chandler, and many more.
Meet FREQ, the latest addition to the Wolff Audio family. FREQ is a Sweepable 4 Band, Proportional Q Parametric EQ packaged for 500 series. It is very flexible, extremely accurate and will deliver exceptional audio performance for every project type and size.
The Tutti microphone and instrument preamplifier is designed and produced in collaboration with Wolff Audio and Sunset Sound Recorders, Hollywood. The product is made in tribute to Tutti Camarata, an audio innovator and the founder of Sunset Sound. Tutti, along with his internal engineering staff, created the original preamp that was installed into the Sunset Sound Studio 1 console and used to record thousands of tracks in legendary sessions.
The 500 Series RefPre Reference Preamp stands out for what it won't do. It won't color your audio. Never Ever. The transparent design uses minimal circuitry and signal paths.
With abundant power and versatile connections, the R6 delivers peace of mind for engineers who demand a higher degree of confidence in their 500 series racks.
Originally developed for the dynamics circuit of the acclaimed Shelford Channel, the 535 Diode Bridge Compressor captures the soul of Rupert Neve's original 2254 compressor while providing modern updates including advanced timing control, significantly lower noise, fully stepped controls throughout, and internal parallel processing capabilities.
With a big, bold preamp, a swept high-pass filter and the powerful saturation control of variable Silk, the 511 combines legendary Rupert Neve tone with 500 Series value.
With abundant power and unrivaled build quality, the R10 delivers peace of mind for engineers who demand a higher degree of confidence in their 500 series racks.
Amazing sounding 500 Series Mic/Line/Instrument Preamp with 70dB of Mic Gain. Get that 70's Mojo
The STX 100 represents an affordable alternative for employing the same Spectra Sonics technology of our famous recording desks made over 40 years ago. The unique circuit topology of the STX 100 utilizes a 100 series discrete preamplifier design that was at the heart of every console built by the company. The result is unequaled performance in terms of expanded dynamic range (headroom), low noise and distortion, as well as extended harmonic content of the amplified signal.
The design of the STX 600 uses the same input section as the C610 and V610 Complimiters. The input section, (top knob), allows for quick setup for use as a limiter, limiter/compressor, or mild to moderate compression, (10:1). The output section, (bottom knob), allows for gain control for both compression compensation, and or microphone level adjustment.
The STX 100D is the latest product to be available from Spectra 1964. Based on the Spectra Sonics console design and development from 1964 through 1971, the 100D features an all-discrete topology using two 101 amplifier modules and US-made input and output transformers, packaged in a single space 500 series lunch box format. Without compromising performance, the 101's were reduced in physical size by over 75% to fit the 500 series lunchbox.
Found in legendary studios like Stax, Ardent, the Record Plant and more, Spectra recording desks were used to record some of the most influential albums of all time. For over 40 years, the Spectra sound has made its way onto countless hit records, including John Lennon's Imagine, Bruce Springsteen's Born to Run, Aerosmith's Toys in the Attic and more.
500 series compressor module featuring the original compressor circuit designed for the ATI Paragon live analog mixing console with easy-to-use compression with full LED metering of both output and gain reduction and API's patented THRUST circuitry
Equalizer found on historic EMI TG12345 recording consoles of the late ‘60s and early ‘70s.
Get The Fairchild Sound in the 500 Seires format Originally designed for broadcast and cutting of lacquer masters for vinyl albums the Fairchild evolved into what is probably the most famous and coveted compressors of all time.
Finally an EQ that can replicate any eq on the market and has its own Mojo!
LOOPTROTTER SATurAMP is one of a kind microphone / instrument preamplifier, equipped with Looptrotter's world famous solid state saturation circuit wrapped in 500 series format. Thanks to this unique combination SATurAMP is not only a creative and unique, but also universal tool capable of producing powerful sounds, with great detail preservation.
LOOPTROTTER EMPEROR 500 is an analog dynamics processor, which depending on the settings, can work as a compressor, limiter or harmonics distortion generator. It's design was inspired by limiters and transistor compressors from the 1960-ties. It uniquely enhances perceived loudness, warms up and brightens the audio signal in a very ear pleasant way.
LOOPTROTTER SAT 500 is a single channel module in 500 format fitted with Looptrotter's world famous saturation circuit. I was created to add low order harmonics and smoothly even the signal, all in an amazingly musical and ear friendly way, significantly increasing the RMS level at the same time.
LOOPTROTTER MODULAR CONSOLE is a perfect solution for all studios, producers and engineers who already use 500 series modules in their creative environment. The console is fully customizable and compatible with almost every 500 series module currently available on the market.
Pultec EQP-500X 500-series equalizer
Presenting the m501, our 500 series module version of the venerable m101 mic preamplifier. Now the signature transparency and detail of our circuit designs is available for your 500 series collection.
The 2128 is the mic preamp circuit from the 0011 in a 500 Series package. It features the same quality preamp with 70 db of gain, 20 db pad, phase control, 48V phantom power and selectable high pass filter
The Electrodyne 511 is a classic two-band discrete transistor reciprocal active inductor equalizer using early '70s design technology.
Designed by Brad Avenson of Austin, Texas-based Avenson Audio, the BAC-short for Brad Avenson Compressor-is a feedback-style FET compressor built around two discrete op amps and a custom wound output transformer.
DC coupled ribbon mic with 10dB gain boost setting. 80 Hz rolloff filter.
The 5011 is the EQ section from the 0011 in a 500 Series package. Featuring an electronically balanced input and transformer balanced output with amp circuit, and the exact same EQ circuit as the 0011.
The Q2 Audio F765 is the compression and limiting sections of the famous "Compex Limiter" built into a single 500 Series slot.
The XLA-500 has normal, fast, and slow modes and Impressive tonal versatility with a triple optoelectronic circuit.