PDF-1X Parametric Distortion Filter

The Stone Deaf FX PDF-1X Parametric Distortion Filter is a versatile offering that combines boost, cut, Parametric EQ, Distortion, Overdrive, and Fuzz Tones, as well as Expression. It is a combination of the original PDF-1 and PDF-2 with a limited number of units being manufactured worldwide. The PDF-1X takes the best features of both units and combines them for a set-and-forget pedal board staple, as well as a studio recording tool to enhance tone and amp performance.

Key features and specifications include:
- Combination of the original PDF-1 and PDF-2
- Parametric EQ with a foot-switchable Clean and Dirty channel
- Additional volume control
- Controller: Height, Vol., Freq., Bandwidth
- LED: Effect On
- Foot-switch: Clean/Dirty - On/Off
- Bypass effect
- Input: 6.3 mm Jack
- Output: 6.3 mm Jack
- Exp: 6.3 mm Jack
- Power supply adapter connection: Coaxial connector 5.5 x 2.1 mm, negative polarity inside
- Power supply via 9 V battery or 9 V DC power supply
- Dimensions (W x D x H): 9 x 15 x 7 cm
- Weight: 600 g
- Made in the United Kingdom

The PDF-1X is designed to work on bass, synth, or other instruments, making it one of the most versatile analog pedals on the market. It offers a soft clipping circuit set to PDF-1 territory from manufacture, allowing users to adjust accordingly to achieve PDF-2 gain by using the internal gain trim pot.