The Rupert Neve Designs Portico 5024 is a 1U, 4-channel mic preamp with two DI channels, M/S decoder, custom transformers and Class A circuitry. It is designed to improve the front-end performance of any digital or analogue recording system.
The Rupert Neve Designs Portico 5024 uses the same preamp design of the highly popular 5012, providing up to 72dB of gain. All four mic pres include individually selectable phase mute phantom power. A high-pass filter with selectable frequencies on each channel is also provided.
Two channels of DI inputs designed to connect your instrument level sources. Channels 3 and 4 include an M/S switch which enables Mid-Side decoding.
Rupert Neve’s highly popular Silk circuit design is also included adding rich warmth and presence of classic mic preamps.
The microphone input uses a unique circuit design based around a Transformer-like Amplifier circuit designs (T.L.A.). It includes a toroidal Common Mode Rejection Low Pass Filter set to exclude any frequency beyond 150kHz.
A proprietary input transformer designed by Rupert Neve immediately follows the T.L.A. circuit. It handles of up to +25dBu at unity gain over the entire audio spectrum without the need for an input pad. This innovative design delivers all the benefits of electronically balanced audio and true transformer input.
The microphone input can also be used for line-level applications with an impedance of 10k Ohms.
The Rupert Neve Designs 5024 has been carefully designed to deliver super low-noise and low distortion performance. Special attention was given to the signal paths implementations to ensure ultra-quiet performance.
The 5024 also employs a Class-A circuit design with input and output transformers as well as entirely discrete component amplifiers. This design enhances the sonic qualities of signal sources. As a result, the Portico 5024 is unobtrusive and provide very high-quality audio performance.
Simply using the 5024 as a Line level amp will enhance the sonic quality of many sources. Digital signals coming from an audio interface or Digital-to-analogue converter will especially benefit from it, subtle analogue sweetness.
Just as in most of Rupert Neve’s long legacy of mic pres, the 5024 includes both input and output transformers in the signal path. These are employed for several reasons.
The first reason is a technical one. Transformers provide full galvanic isolation, a balanced interface to reduce hum and R.F. interference noise. It also provides a way to boost or cut the signal levels to match different devices.
According to Rupert Neve and his team, transformers are preferable to other topologies such as electronically balanced circuits. While electronically-balanced circuits offer similar performance they provide inferior stray fields rejection that occurs in working environment.
Furthermore, Rupert Neve has always believed that frequencies above 20kHz were extremely important to our perception of sound quality. Transformers are able to provide subtle harmonic distortion which translates in the 5024 somewhat sweetness.
The Transformers also play an important part in the Silk circuit. By slightly overloading the signal at the output transformer stage, the 5024 delivers a subtle and pleasing character. The result is akin to some classic mic preamps with a natural warmth and presence.
|AT A GLANCE|
|Demo in Store||Yes|
|Manufacturer||Rupert Neve Designs|
|Short Description||1U 4-channel mic preamp with two DI channels, M/S decoder, custom transformers and Class A circuitry, designed to improve front-end performance of any digital or analogue recording system.|