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Open-Box SPL PASSEQ Mastering Equalizer, Red
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Vintage design meets modern 120V technology in this passive equalizer.
Only One Filter
All control functions are part of only one passive filter. There are three frequency ranges: Low, Mid and High, each with a cut control on the left and a boost control on the right. Output control is in the middle.
Design
A passive filter has no amplification stages. Therefore, it can only be lowered. If one frequency is to be boosted, all the others must be lowered. Behind the filter, there is a stage that makes up for the lowered overall level. Since low noise is particularly important here, since up to 20 dB can be made up for, the 120V technology comes into its own.
The entire passive filter (variable resistor, capacitor and coil) provides a very nice sound characteristic. Besides the choice of components, the charging behavior of the capacitors and the saturation behavior of the coils play a major role. The resulting relative inertia compared to potentially very fast active filters is the reason for a pleasant, musical sound characteristic. SPL describes the sound as smooth and transparent, as well as strikingly silky in the highs with pithy basses.
During fine-tuning, through component selection, emphasis was placed on achieving the most musical sounding curves possible. For example, you don't have to worry about a comparison with a Pultec EQ from the 1950/60s. PASSEQ comes without all the disadvantages of a 60-year-old original, like the very high background noise, or the very limited frequency selection.
Another highlight of the PASSEQ is the HF+ band, which has been extended by the frequencies 25 kHz and 35 kHz and sounds so incredibly good that you don’t want to switch it off.
Vintage meets modern with the PASSEQ equalizer. Order yours today.
PASSEQ Mastering Equalizer, Red Specifications:
Analog inputs & output; XLR (balanced)- Maximum input & output gain: 32.5 dBu
- Input impedance: 20 kΩ
- Output impedance: 75 Ω
- Common mode rejection: -60 dBu
- Frequency range (-3 dB): 10 Hz – 200 kHz
- Crosstalk (1 kHz): -108 dBu
- THD + N (+30 dBu, 1 kHz): 0.0012 %
- Noise (A-bewertet): -95.2 dBu
- Dynamic range: 134.5 dB
- Operating voltage for analog audio: +/- 60 V
- Operating voltage for relays and LEDs: + 12 V
- Mains voltage (selectable, see fuse chamber): 230 V AC / 50; 115 V AC / 60 Hz
- Fuse for 230 V: T 500 mA
- Fuse for 115 V: T 1 A
- Power consumption: max. 15 VA
- Dimensions: 19" W x 5.2" H x 11.8" D
- Weight: 22.49 lb
Questions & Answers
Do you have questions about this product?
- Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).
- Orders placed before 3 p.m. ET usually ship the same business day.
Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.
Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.