| “Q” Range | Q = 0.4 to 4.0 Adjustable on middle ranges |
| | Q = 1.0 Fixed on low & high ranges |
| Maximum Output Level | > + 28 dBu |
| Maximum Input Level (EQ Flat) | + 28 dBu |
| Maximum Input Level (EQ Full Boost) | + 17 dBu |
| Frequency Response | |
+0 / -3 dB
| sub 2 Hz to beyond 300 kHz |
| Frequency Response, Stereo Deviation | +/- 0.5 dB (with Mastering Option) |
| Noise (All EQ Stages In, Controls Flat) | -106 dBu |
| Maximum Boost (21 Step Detented) | +20 dB (+10 dB with range switch in) |
| Maximum Cut (21 Step Detented) | -20 dB (-10 dB with range switch in) |
| EQ Frequencies | |
Low Range Switch (Centers – Peak/Shelf Selectable):
| 20, 34, 56, 100, 180, 270 |
Low Mid Sweep:
| 20 Hz – 220 Hz or 200 Hz – 2.2 kHz.
10X Range switch selectable. |
Hi Mid Sweep:
| 250 Hz – 2.5 kHz or 2.5 kHz – 25 kHz.
10X Range switch selectable. |
| High Range Switch (Centers – Peak/Shelf Selectable) | 4.8 k, 5.8 k, 8.0 k, 10 k, 16 k, 21 k |
| THD + Noise | |
20 Hz – 30 kHz, All EQ Bands Switched In
| < .009%, typ < .003 % |
| Common Mode Rejection Ratio | |
10 Hz – 20 KHz, 100 mV C.M.
| > 60 dB, Typ > 80 dB |
| Slew Rate, +27 dBu Out | > 50 volts per microsecond |
| Main Hard-wire Bypass Switch For Each Channel? | Yes |
| Peak/Shelf Selection On High & Low Range? | Yes |
| Hard-wire Bypass Switching On Individual EQ Bands? | Yes |
| Input Impedance | 25 kilohms |
| Minimum Output Load Impedance | 50 ohms |
| Recommended Load | > 500 ohms |
| Output Impedance | 5 ohms |
| EQ Amplifiers | Pure Class-A Discrete J-FETs |
