Fidelix PCA-25 Phono Curve Adjuster

By connecting it after a phono equalizer that only supports RIAA, 25 additional curves can be created using various combinations of BASS and TREBLE, making it possible to support major EQ curves other than RIAA. This allows you to fully enjoy even old records.

By using only passive components with no amplifier or power supply required, we achieved highly pure sound quality. Being purely analog technology, we paid particular attention to the components: resistors are non-magnetic PRP resistors from the USA, capacitors are PPS type encased in special resin, and all contacts are gold-plated. Continuous variation is avoided,and sound-quality-focused rotary switches are used. It has a fully mono construction with no conduction between the left and right grounds, and a non-magnetic aluminum chassis.

To support old recordings, it features a mono switch. Mono records offer concentrated sound with strong midrange and excellent musicality. Although you can play mono LPs with a stereo cartridge, the sound feels spread out, and the energy is dispersed. Listening to mono records in mono or with mono connection yields about a 3dB improvement in S/N ratio. Using the mono switch on the PCA-25 reduces surface noise by 3dB. With the mono switch engaged, you can experience the clear, unwavering conviction in the music, similar to a mono cartridge.

Even for RIAA records, there are many recordings where you might want to slightly boost or cut the high frequencies. In such cases, this device allows you to make adjustments freely.The PCA-25, with its simple design that minimizes sound quality degradation, allows you to enjoy a free and comfortable audio life.

Additionally,PCA-25By placing it between the preamplifier and power amplifier, it can be used as a high-purity tone control for program sources other than records. If you want to use XLR, dedicate one unit to the positive signal and the other unit to the negative signal. Externally, you can use two units with an XLR-to-RCA conversion cable and an RCA-to-XLR conversion cable.