Fredenstein F603B-EQ 500 Series Equalizer

The Fredenstein F603B 500-Series Low-Q EQ combines passive LC (Inductor/Capacitor) filters with a minimal signal path. It features shelving type filters for low and high frequencies, and band pass filters for mid frequencies, offering four and six selectable frequencies respectively. LED indicators denote the active filter range, and a true "hard" bypass facilitates accurate sound comparisons. Each filter provides a gain range of +/- 16 dB.

Renowned for its silky yet detailed sound stage, the F603B includes a high power output stage with an impedance of less than 20 Ohms and a driving capability of up to +/- 200mA, ensuring uncompromised performance even with complex loads.

Designed by a German-American team and manufactured in Taiwan, the F603B exemplifies Fredenstein's commitment to precision engineering and high-quality audio equipment.

Fredenstein F603B-EQ Includes:

• 1 x Fredenstein F603B 500-Series Low-Q EQ
• 1 x Operating Manual
• 1 Year Warranty

Fredenstein F603B-EQ Features:

• 4-band equalizer for tracking and mixing
• Low-Q=0.8 is ideal for overall sound sculpting
• LC (inductor/capacitor) filters
• Short, purist signal path
• Silky, yet highly detailed sound stage
• Low and high frequency shelving with 4 frequency centers
• Two mid range peaking filters with 6 frequency centers
• LED indicates the desired filter range
• Each filter offers a +/-16 dB gain range
• Filters are relay-switched for highest sound quality
• High-power output stage drives even the most difficult loads
• True hard bypass facilitates instant wet/dry comparisons
• Requires compatible 500 Series chassis

Fredenstein F603B-EQ Specifications:

• Frequency Response: 20 Hz – 20,000 Hz, +/- 0.2 dB
• Distortion: < 0.01%
• S/N Ratio: > 90 dB at 0 dB Gain
• Input Impedance: > 10 K Ohm
• Max. Input Level: + 24 dBu Balanced
• Output Impedance: 20 Ohm
• Max. Output Current: +/- 200 mA
• Max. Output Level: + 26 dBu Balanced
• High Shelving Filter: 9 KHz – 13 kHz in 4 Steps
• High Shelving Gain: +/- 16 dB
• Hi Mid Band Pass Filter: 1000 Hz – 5000 Hz in 6 Steps
• Hi Mid Band Pass Gain: +/- 16 dB
• Hi Mid Filter Q: 0.8
• Low Mid Band Pass Filter: 200 Hz – 800 Hz in 6 Steps
• Low Mid Band Pass Gain: +/- 16 dB
• Low Mid Filter Q: 0.8
• Low Shelving Filter: 60 Hz – 230 Hz in 4 Steps
• Low Shelving Gain: +/- 16 dB
• Power Consumption: +/- 16 V, +/- 200 mA (600 Ohm Load)