Passive-Shelf
Modular-Mastering-Desk
Passive-Shelf:
This is a passive EQ with two Shelving Boost bands and one cut band for high or low. All three bands are based on custom-made Inductors with an discret OpAmp for the gain and driving the Output Transformer. Input is also an discrete OpAmp and Output
Price:
600,- euro (without german tax)
Availability:
Will be build on request. 3 weeks delivery time.
Specifications:
Frequency Response:


Max. Level:

Input Impedance:

Output Impedance:

Power consumption:

Weight:

Dimensions:









155 mA

975 gr (2,2lbs)

2 slot
Input
LED-Meter
Filter
Side-only
density
Passive-Bass
Passive-Mid
Tilt-EQ
Limiter
Output
Fader
VU-Meter
Monitor-Controller
High Shelving Boost Fr:
6 different Frequencies
High/Low Shelving Cut Fr:
- 3 High cut Frequencies
- 3 Low cut Frequencies
Low Shelving Boost Fr:
6 different Frequencies
High Shelving Boost:
+5dB in 1dB steps
High / Low Shelving Cut:
5dB in 1dB steps
Low Shelving Boost:
+5dB in 1dB steps
On / Off:
Off: hardwire bypass with relays
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Frequency response:
EQ On, 0 dB boost

The high roll off comes from the output transformer.

High Shelving:
all frequencies
High Shelving:
1-5 dB boost
High Shelving Cut:
-5 dB at 3, 6, 15k
Low Shelving:
all frequencies
Low Shelving:
1-5 dB boost
THD:

solid line: 2. harmonics
dashed line: 3. harmonics