Item # H81652 | Customer Ratings: ( 1 Based on 1 reviews)

Print this page

  1. Select the information you'd like to print out.
  2. Cancel
Peavey SP 4BX 3-Way Passive PA Speaker Cabinet
Use Add to Cart below to have it shipped to you, or to a store near you.
  • Store
  • Availability
Guaranteed Lowest Price
Pickup In Store

Pickup In Store

Big speakers with a big sound.

The Peavey SP series loudspeakers have been a mainstay of journeyman sound reinforcement for three decades, and the SP 4BX is the latest incarnation of this ever-improving legacy. It has dual 15" woofers that are each voiced differently thanks to an efficient crossover that directs low frequencies to both woofers while limiting midrange frequencies to only the top woofer.

Engineered for optimal sound reproduction with proven reliability, Peavey SP enclosures feature patented asymmetrical Quadratic Throat Waveguide technology that helps deliver pristine, precise sound; Black Widow loudspeakers with Kevlar-impregnated cones, 4" ribbon-wire voice coils and exclusive field-replaceable baskets; the patented Radialinear Planar Phase Correction System; and titanium compression drivers with ferrofluid cooling.

Ideal for medium-sized clubs and even outdoor performances, these enclosures can go up against a loud drummer, two guitars and a bass player on a big rig with ease. Reasonably lightweight, loud and clear, they are an excellent solution for today's gigging bands.

Peavey SP 4BX 3-Way Passive PA Speaker Cabinet Features:

  • Quasi-three-way, full-range, bi-ampable sound reinforcement system
    2000 watts program, 4000 watts peak
    Patented Asymmetrical Quadratic Throat Waveguide technology
    Patented Radialinear Planar Phase Correction System
    Sound Guard III tweeter protection
    Two 15 inch BWX Black Widow 4 inch voice coil woofers
    Sensitivity: 100 dB (1W/1m) anechoic
    Full-range inputs include a Neutrik Speakon 4 pin jack and two 1/4 inch phone jacks
    Bi-amp capability via internal wiring jumper
    Trapezoidal enclosure
    HammerHead durable covering material
    RX 22 compression driver with ferrofluid cooling
    Frequency Response: 52 Hz to 17 kHz (+/- 3 dB)
    Pocket Casters

Peavey SP 4BX 3-Way Passive PA Speaker Cabinet Specifications:

  • Frequency response, 1 meter on-axis, swept-sine in anechoic environment:
    52 Hz to 17 kHz (±3 dB)
    Usable low frequency limit (-10 dB point):
    45 Hz
    Power handling:
    Full range: 1,000 watts continuous 2,000 watts program 4,000 watts peak
    Low frequency section: 1,000 watts continuous 2,000 watts program 4,000 watts peak
    High frequency section: 60 watts continuous 120 watts program 240 watts peak
    Sound pressure level, 1 watt, 1 meter in anechoic environment:
    Full range: 100.0 dB SPL (2.83 V input)
    Low frequency section: 101 dB SPL (2.83 V input)
    Mid/high frequency section: 107 dB SPL (2.83 V input)
    Maximum sound pressure level (1 meter):
    Full range: 130 dB SPL continuous 136 dB SPL peak
    Low frequency section: 131 dB SPL continuous 137 dB SPL peak
    Passive mid/high frequency section: 129 dB SPL continuous 135 dB SPL peak
    Radiation angle measured at -6 dB point of polar response:
    90° horizontal by 40° vertical; the vertical main polar lobe is angled down 10° with respect to straight ahead being +10, -30°
    Transducer complement:
    Low frequency section: 2 x 15" woofer, vented Black Widow 1508-8 HE SF
    High frequency section: 1 x .875" exit /51 mm voice coil RXTM 22 compression driver on an asymmetrical Quadratic Throat CD horn
    Box tuning frequency:
    Low frequency section: 58 Hz
    Crossover frequency (internal passive):
    Low frequency - high frequency 1,800 Hz
    Recommended Active Crossover Frequency Region and Slope:
    Low Frequency - High Frequency: 1,800 Hz at 12 dB/octave
    Time Offset:
    Low frequency: 0.0 ms Mid/high frequency: 0.48 ms
    Impedance (Z):
    Full range: Nominal: 4.0 Ω Minimum: 3.4 Ω
    Low frequency: Nominal: 4.0 Ω Minimum: 3.2 Ω
    Passive HF: Nominal: 8.0 Ω Minimum: 5.4 Ω
    Input connections:
    Full range: two 1/4" phone jacks, one four-pin twist lock connector & bi-amp capability provided via an internal wiring jumper
    Enclosure materials and finish:
    Hardwood panel coated with Peavey's heavy-duty HammerHeadTM finish. Casters are incorporated for portability.
    Mounting provisions:
    This unit is not designed for overhead suspension; Four large rubber feet on bottom for floor use.
    Dimensions (H x W x D):
    Front: 49.875" x 20.5" x 24.31" 1266.83 mm x 520.7 mm x 617.55 mm
    Rear: 49.875" x 12.75" x 24.31" 1266.83 x 323.85 mm x 617.55 mm
    Net weight:
    130.5lbs. (59.2kg)

Product Reviews
(Based on 1 reviews)
Sort reviews:
Viewing Reviews 1 - 1 of 1
  • don't waste your money

    As reviewed by jeffrey on 8/24/2014

    the specs from peavey's website states these cabinets are constructed of hardwood. the only wood is the face that the speakers are mounted to. the rest of the cabinet is glorified cardboard.the exterior covering is so thin that every little bump results in a tear and a gouge. they are complete junk.

    1 of 2 people found this review helpful.
    Was this review helpful?
Questions about the SP 4BX 3-Way Passive PA Speaker Cabinet (H81652)

PO Box 4769
Westlake Village, CA 91359
Order #: (if applicable)  * Denotes Required Field
*First Name:
*Last Name:
Click to add file attachment
File Upload 5mb limit