From Summit Audio
Smooth and precise
Rich, smooth tone and an openness are just the beginning. Experience how an EQ of this caliber will breathe life into your sound. The EQF-100 is a no compromise solution for precision tone shaping.
Four bands plus
The EQF-100 provides 4 bands of fully parametric equalization and an additional 3 position high and low pass filter for added flexibility. Each band features a seven position fixed frequency selector that works in conjunction with the bandwidth knob to allow you to tune the slope of the EQ curve.
Under the hood
The EQF-100 represents the pinnacle of quality passive EQ design. Finer details include individualy hand-tuned frequencies and a transformerless tube/solid-state hybrid signal path. Only custom wound inductors and hand-tuned capacitors are used to filter the signal because active elements can create phase anomalies.
Hand-crafted in the USA
Each piece of Summit gear is meticulously crafted by hand in our shop using only the best quality components and attention to detail. Quality components and engineering know-how are the critical element to the sound and longevity of audio gear.
Selectable Frequencies
- 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
FILTERS
- HIGH FILTER
- 8.2 kHz, 12 kHz,18 kHz
- LOW FILTER
- 22 Hz, 47 Hz, 82 Hz
Connections
- Input
- +4 dB female XLR
- Output
- +4 dB male XLR
Max level
- Max input level (XLR)
- +25dB
- Max output level (XLR)
- +25dB
- Max gain
- 18dB 1 frequency, 25dB two overlapping frequencies
Operating Measurements
- Frequency response
- 12Hz-50kHz flat, 12Hz-100kHz -1.5dB
Signal to noise ratio
- Tube
- 127dB average 20Hz-20kHz
THD + Noise
- Tube
- 0.026% @ 1kHz, 0dBu
- Vacuum tubes
- three 12AX7A
Power Configuration
Internal AC Supply
35 watts, 115 or 230 volts, 50 or 60 Hz ( Switchable)
- Fuse
- 0.5 Amp for 115VAC and 100VSC, 0.25 AMP for 230 VAC.
Size and Weight
- Height
- 3.5 inches (8.89 cm)
- Width
- 19 inches (48.26 cm)
- Depth
- 10 inches (25.40 cm)
- Weight
- 17 pounds (9.45 kg)
- Warranty
- 3 year limited warranty.
Manuals & documents
Free 3-Year Warranty
Sound Pure stands behind our products. Free three-year warranty on this item. Coverage exclusions live in Terms & Conditions, Section 27.
Level of support and expertise that simply isn't available at big-box megastores. Read the warranty →
Returns
Try Before You Buy: take it home, commit only when it's right. Program details →
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Sound Pure Studios · Durham, NC
Come hear it in our control rooms.
Sound Pure is a working studio in Durham, NC — a 1,000 sq ft live room and two pro control rooms. Book a session to audition gear in a world-class acoustic space before you buy.