Used Shure DFR11EQ Professional Digital Equalizer

The DFR11EQ offers a straightforward computer control interface that makes sense without a software manual or training course. The system also features tamper–proof front panel lockouts and the exclusive ShureLink network, which controls up to 16 units from one computer connection.

The DFR11EQ is a true problem-solver with features including 10 automatic, adaptive, feedback filters, equalizer limiter and delay for challenging acoustical situations.

HARDWARE FEATURES

• Crystal* 20-bit A/D and D/A converters (Analog-to-Digital, Digital-to-Analog) allows 104 dB of dynamic range.
• 48 kHz sampling rate provides flat response to 20 kHz. Onboard Scenes can be selected via front panel buttons.
• 1/2 rack space chassis allows rack mounting of one or two units in a single rack space with no sagging or bending.
• Shure Link Interface allows multiple Shure Link devices to be controlled with a single computer.
• There are no internal batteries. Settings and DSP program are stored in internal EEPROM.
• Electronically balanced input features combination 1/4-in. and XLR connector and can be used with balanced or unbalanced outputs.
• Independently driven, cross-coupled, balanced 1/4-in. and XLR outputs can be used with balanced or unbalanced inputs, without signal loss.
• Input and output levels are +4 dBu/–10 dBV DIP-switchselectable.
• 88 MHz Motorola* DSP56009 processor engine features full 24-bit internal processing.
• RS-232 interface allows external computer control and firmware updates.
• Internal linear power supply is switchable between 120 and 230 Vac, eliminating the need for a cumbersome external power supply.
• Solid state bypass eliminates unreliable mechanical relays.

SOFTWARE FEATURES

• Adaptive Notch Filter algorithm (patent pending) automatically detects feedback and deploys up to 10 narrow band notch filters.
• A tamper-proof equalizer can be switched between 30-band graphic or 10-band parametric equalizer.
• The graphic equalizer is a constant-Q, 30-band, 1/3-octave graphic equalizer. It can boost up to 6 dB or cut 12 dB for each band.
• The parametric equalizer offers 10 filters with adjustable frequency, up to 6 dB of boost or 18 dB of cut, and up to a two octave bandwidth.
• Up to 1.3 seconds of Digital Delay.
• Front and back panels both feature lockout control.
• The Response Curve Viewer displays frequency response of the feedback reducer, equalizer, or both.
• 10 scenes can be stored on board. Multiple scenes can be stored to floppy or hard disk.
• The Limiter provides added protection to external speakers and amplifiers. DFR11EQ