Wan't Better Pricing? Call us

800-248-7540

Free Shipping FREE SHIPPING
   NO Minimums! Click here for Details

QSC SF3

Call for Price
In StockAvailability: Out of Stock
*Special Order
  • Advertised Price: $ 162.99
    Logged In: Pricing Questions? Call: 800-248-7540
SF3-QSC | Mfr#:

Quick Overview

Subwoofer Filter for QSC Amplifiers The SF-3 subwoofer filter allows the addition of subwoofers to an existing full-range system - offering adjustable low-pass filtering and high-pass subsonic filtering with optional B6 boost and mono-summing. The unit mounts to the rear ...

Details

The SF-3 subwoofer filter allows the addition of subwoofers to an existing full-range system, offering adjustable low-pass filtering and high-pass subsonic filtering with optional B6 boost and mono-summing. The unit mounts to the rear panel of a two-channel DCA or CX amplifiers to save cost and rack spack. The amplifiers DataPort provides the accessorys operating power and receives the output signals, eliminating added external wiring or power transformers.

For subwoofer material derived from full-range audio, a 4th-order Linkwitz-Riley low-pass filter lets you set the upper range of the subwoofer band to 80, 150, or 250 Hz. The subsonic filter offers a range of roll-off frequencies from 20 to 50 Hz to protect subwoofers from over excursion, with optional equalization to extend the response of B6 speaker enclosures. A trim control provides 0 to 20 dB of attenuation for matching levels among the various frequency bands. Filter frequencies are programmable via provided SIP resistor networks.

Features:

  • For 2-channel DCA series or CX series amps
  • Designed for professional cinema applications or installed sound systems
  • Mounts directly to back of amplifier; interfaces with amplifier via DataPort
  • Adds low-pass and subsonic filtering functions without requiring additional rack space, cabling, or AC outlets
  • Precision components for accurate performance
  • Active balanced XLR inputs
  • Selectable subsonic frequencies from 20 Hz to 50 Hz
  • Defeatable 24 dB/octave low-pass filter for deriving subwoofer programfrom mono or stereo full-range audio
  • Specifications:

  • Supply Voltage (no load) +15V amplifier, -15V internal charge-pump converter
  • Supply Current Requirements: Less than 50 mA
  • Operating Temperature: 0-70 degrees Celsius
  • Input Type (each channel): Electronically balanced differential
  • Input Impedance: 22.6 kohm balanced, 11.3 kohm unbalanced
  • Subsonic Filter Frequency: Selectable using SIP resistor netowrks: 20, 25, 30, 35, 40 & 50 Hz
  • Subsonic Filter Q: Selectable using DIP switch: 0.707 (Butterworkth) or 2 (6 dB peak)
  • Low-pass Filter: Bypass or Engage using DIP switch
  • Low-pass Filter Frequency: Selectable using SIP resistor networks: 80, 150 & 250 Hz
  • Gain Adjustment: Trim potentiometer 0-20 dB attenuation
  • Input Connectors: Two female 3-pin XLR
  • Output to Amplifier Connector: Male HD-15 connector to amplifier DataPort
  • Accessory's Operating Power Connector: Male HD-15 connector to amplifier DataPort
  • Input Stage Type: Electronically Balanced Differential; both inputs summed
  • Output Stage Type: Balanced
  • Dynamic Range: 118 dB nominal
  • Total Harmonic Distortion: Less than 0.1%
  • Signal to Noise Ratio: Min. 103 dB
  • Subsonic Filter Type: 2nd-order, 12 dB/octave
  • Low-pass Filter Type: 4th-order Linkwitz-Riley alignment, -6 dB at crossover frequency
  • Low-pass Filter Roll-off Slope: 24 dB / octave rolloff
  • Additional Information

    Subtitle Subwoofer Filter for QSC Amplifiers
    SKU SF3-QSC
    Mfr# N/A
    Manufacturer QSC
    Warranty Minimum 1 Year Manufacturer Warranty. See Manufacturer for more details
    Special Order Special Order
    Free Shipping N/A
    Lease Amount No
    Sale Increment N/A

    Product Tags

    Use spaces to separate tags. Use single quotes (') for phrases.

    Write Your Own Review

    You're reviewing: QSC SF3

    How do you rate this product? *

      1 star 2 stars 3 stars 4 stars 5 stars
    Price
    Value
    Quality

    Questions on QSC SF3

    No questions asked yet

    Similar Products

    Why we're the best

    Been in Business for 20 Years 15 years in Business Authorized Dealer Authorized Dealer Church Discounts Church Non-Profit Discounts Lifetime Tech Support LifeTime Tech Support Secure Shopping SSL Secured & PCI Compliant

    Wholesale Distributor Wholesale Distributor