| “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 (VT) |
| Maximum Input Level (EQ Flat) | + 28 dBu (VT) |
| Maximum Input Level (EQ Full Boost) | + 17 dBu (VT) |
| 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 (SS), -94 dBu (VT) |
| 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 % (VT or SS) |
| Common Mode Rejection Ratio (With Balanced Option) | |
| 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 | 1 kilohm (VT), 150 ohms (SS) |
| Recommended Load | > 3 kilohms (VT) |
| Output Impedance | < 300 ohms (VT), < 5 ohms (SS) |
| Twin Topology EQ Amplifiers | Switch In: Pure Class-A Discrete J-FETs |
| Switch Out: Pure Class-A Triode Tubes |
| Power Consumption | 40 watts maximum |
| Power Requirements | Selectable: 100-120, 200-240 V ac, 50/60 Hz |
| Dimensions/Shipping Weight | 19” W x 3.5” H x 12.5”, 26 lbs. |
