| Full Timbral Control, Total Signal Integrity
Two paths to perfection with Twin Topology™
Fully parametric stereo EQ with unprecedented sonic purity
& integrity
All triode 300 V vacuum tube signal path or...
All discrete J-FET solid state signal path
Both topologies are entirely transformerless, high voltage,
pure Class A
Minimalist design: only one active stage in the audio path
Four EQ bands: 20 Hz to 20 kHz center frequency, 0.4 to
4.0 Q
Extremely low noise: -106 dBu
Constructed for demanding professional applications
Ultra-Premium components throughout
Gold relays, connectors, switches, tube sockets
Silver Teflon power wiring
Mogami Neglex OFC audio wiring
Options
Detented, loggable controls
Musically rich vintage vacuum tubes
Features
- Two paths to perfection with Twin Topology
- Fully parametric stereo EQ with unprecedented sonic purity & integrity
- All triode 300V vacuum tube signal path or....
- All discrete J-FET solid state signal path
- Both topologies are entirely transformerless, high voltage, pure Class A
- Minimalist design: only one active stage in the audio path
- Four EQ bands: 20Hz to 20kHz center frequency, 0.4 to 4.0 Q
- Extremely low noise: -106 dBu
- Constructed for demanding professional applications
- Ultra-Premium components throughout
- Gold relays, connectors, switches, tube sockets
- Silver Teflon power wiring
- Mogami Neglex OFC audio wiring
Specifications
- "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: sub 2Hz to beyond 300kHz (+0/-3 dB)
- Frequency Response, Stereo Deviation: <.15 dB
- 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)
- Low Range Switch (Centers - Peak/Shelf Selectable): 20, 34, 56, 100, 180, 270
- Low Mid Sweep: 20Hz-220Hz or 200Hz-2.2kHz; 10X range switch selectable
- Hi Mid Sweep: 250Hz-2.5kHz or 2.5kHz-25kHz; 10X range switch selectable
- High Range Switch (Centers - Peak/Shelf Selectable): 4.8k, 5.8k, 8.0k, 10k, 16k, 21k
- THD+Noise (20Hz-30kHz), All EQ bands switched in): <.009%, typ <.003% (VT or SS)
- Common Mode Rejection Ratio (With Balanced Option, 10Hz-20kHz, 100mV C.M.): >60dB, typ >80dB
- 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, 200-240V AC, 50/60Hz
- Dimensions (W x H x D): 19" x 3.5" x 12.5"
- Shipping Weight: 26 lbs
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