In addition to the the true tape circuitry great for bringing out 3rd-order harmonics the 542 incorporates a soft-clip circuit that tames the harshest sources and enhances 2nd-order harmonics, a variable and versatile Silk/Texture circuit for three transformer tones in one, and a wet/dry control to blend in the perfect amount of saturation. The Portico 542s True Tape emulation circuit provides the nostalgic rounding and compression usually only achieved by the use of tape, and can offset the harshness often found in digital recordings.
Unlike digital emulations, the True Tape drive circuit works by feeding a tiny magnetic record head, whichin turn is coupled to a correctly equalized, replay amplifier. As the voltage rises on the record head, saturation increases, and a soft clip circuit engages at higher levels to round off peak transients.
The sound of the tape circuit can be further modified with selectable 15 / 30 IPS modes and a pre/post-tape blend control. In addition to the tape circuit, the 542 also has the variable Silk & Texture circuitry found in the Portico II series of modules, which allows the engineer to fine-tune the harmonic ratio and tonality on the output transformer. Getting the Most Out of the 542. While in the olden days, tapes non-linearity was generally looked upon as more of a curse than a feature, the advent of digital systems that operate in a completely linear fashion has made many appreciate the quirks of non-linear audio processing.
Unlike linear designs, non-linear devices require the user to actively experiment with gain staging to find the sweet spot of the circuit. Although this requires a small amount of effort on part of the engineer, if used properly, the effect can add a dynamic aspect to performances that can enhance the impact of a song. The non-linearity in the 542s True Tape circuitry and Saturation control necessitate taking note of both drive and input levels. How levels are staged into the 542s tape circuit can significantly impact tone, depending on the position of the saturation control and the drive level on the tape circuit. As saturation is increased, low frequency compensation is decreased, and at a drive level of 5 the soft clipper enters the circuit.
Finding the best balance point between low frequency response, total harmonic distortion, and desired soft clipping require playing with a combination of the saturation, trim and blend controls, and may also include using dynamics processing and proper gain staging before the 542. As a rough guide, we recommend starting with an input signal from around 2-10dBu and applying saturation, 15 / 30 IPS, Silk, and blend to taste. However, it always behooves the engineer to experiment with the balance between the pre-tape signal level and the level of the saturation control to find the best results for each source.To get a better idea of what is happening at different saturation and Tape Head levels, look through the frequency response and THD by frequency response graphs in the Technical Specifications section at the end of the manual. Although we have shielded both the unit as a whole and the tape circuit to minimize stray inductance, if you have issues with hum when engaging the tape circuit, try moving the 542 to other spots away from magnetic field radiators until the hum subsides. Both Silk modes are modified and fine tuned by the Texture control. By manipulating the Texture control, the amount of Silk can be changed from essentially absent, to roughly four times the amount of coloration found in Silk from the original Portico Series. With Silk / Texture engaged, the distortion characteristic and harmonic content of the unit are very reminiscent of many of Ruperts vintage class-A designs. These controls add another realm of tonal control to the 542, and should be explored creatively in conjunction with the True Tape for best effect. Designed for 500 Series by Mr. Rupert Neve: While creating functional 500 Series modules is relatively simple, designing those modules to equal their non-500 series counterparts with the current, voltage and space restraints is quite challenging.
In creating our Portico 500 Series Modules, we experimented with a number of different transformer and circuit designs to achieve the same presence and sweetness found in the Portico Series of modules. The result of these efforts is that outside of the slightly lowered headroom, our 500 series modules are nearly indistinguishable from standard Portico Series modules, and are perfectly suited for studios of the highest-caliber. The Portico 542 consists of a line driving amplifier having transformer balanced inputs and outputs.
The sonic quality of these amplifiers is such that by providing galvanic isolation, simple single-sided circuit topology and freedom from grounding problems, they are capable of enhancing the sonic quality of many signal sources, especially those of digital origin. The sonic signature is one of extreme purity and the image is consistent with that of Rupert Neves original designs of 35-40 years ago. Since 1993, we have been committed to equipping our customers with the very best gear, advice, and personal service anywhere.We believe that great sound can be achieved at any budget. We also believe that the ambitions of our customers should always come first. And over the years, those beliefs have turned customers into friends and family. Whether you're just starting out, or a seasoned pro, we're here for you, no matter where your audio travels may take you. Analog Outboard Gear - 1 Year.
Microphones - 1 Year (excluding capsules, tubes, and ribbon elements). Speakers - 1 Year (excluding drivers).Digital Outboard Gear - 30 Days. Note: Software is not returnable or refundable. What Are "Demo Deal" or "B-Stock" Products? Our Demo Deals and B-Stock products offer a unique opportunity to save big on near-mint condition, fully warrantied gear. These items have been opened for demonstration purposes and put back in the box without extended use. All original factory accessories and packaging are included. The item "Rupert Neve Designs Portico 542 500-Series Tape Emulator" is in sale since Wednesday, June 6, 2018. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips". The seller is "vintagekingaudio" and is located in Ferndale, Michigan. This item can be shipped worldwide.