Summit Audio EQF-100

The Summit Audio EQF-100 is a full range passive parametric equalizer that utilizes vacuum tube technology to overcome any gain loss. Providing 4 bands of fully parametric equalization, the EQF-100 also has both high and low pass filters which can be bypassed from the signal path. The EQF-100 uses both solid state and tube technologies to produce the warm sounds associated with tubes, while providing the reliability of solid state devices. This passive tube EQ is an incredibly warm sounding and accurate equalizer, hand built in the USA to the most exacting standards.

Features:

• 4 band equalizer
• HP/LP filter section
• Silent bypass switch
• Individual bypass for each band
• Individually tuned frequencies
• Transformerless signal path
• 3 year warranty*
• Hand crafted in the U.S.A.

Specifications:

• OUTPUT: +4 dBu designed operating level. The output is balanced using 990 operational amplifiers. Output impedance is 75 . The recommended output load is 600 or more. Maximum output level is +25 dBu.
• INPUT: The input is electronically balanced with an impedance of 20 k
• DISTORTION: Better than 0.05% THD at 1 kHz (unweighted)
• FREQUENCY RESPONSE: 5 Hz to 100 kHz (balanced output)
• NOISE: Less than -80 dBu
• BAND 1 FREQUENCIES: 33 Hz, 56 Hz, 100 Hz, 180 Hz, 220 Hz, 270 Hz, 390 Hz
• BAND 2 FREQUENCIES: 250 Hz, 330 Hz, 470 Hz, 560 Hz, 680 Hz, 820 Hz, 1.2 kHz
• BAND 3 FREQUENCIES: 1 kHz, 1.5 kHz, 1.8 kHz, 2.2 kHz, 2.7 kHz, 3.9 kHz, 5.6 kHz
• BAND 4 FREQUENCIES: 3.3 kHz, 4.7 kHz, 6.8 kHz, 8.2 kHz, 10 kHz, 12.5 kHz, 15 kHz
• HIGH FILTER: 8.2 kHz, 12 kHz,18 kHz
• LOW FILTER: 22 Hz, 47 Hz, 82 Hz
• PANEL SIZE: Standard 19" by 3.5" (2 units of rack space)
• DEPTH: 10.5" in addition to user’s I/O cabling
• POWER: 35 watts, 115 or 230 volts operation, 50 or 60 Hz