The cone is a high-strength pressed paper composite. While paper sounds fragile, in the world of high-end audio, it’s a preferred material because it is rigid yet lightweight. This allows the sub to react quickly to signal changes (transient response) while having the structural integrity to handle high wattage without blowing out.
Pulling the B119 out of the box, the design language is unmistakably Cerwin Vega. You are greeted by the iconic red surround. It’s loud before you even plug it in.
The cabinet is constructed from MDF (Medium Density Fiberboard) with a black vinyl finish. It isn't "furniture grade"—don't expect the high-gloss piano finishes of an SVS or a JL Audio. This is a working subwoofer. The front grille is a thick, perforated metal mesh that can take a kick drum hit or a spilled beer (though we don't recommend testing that).
Dimensions & Weight:
This is a two-person lift. The sheer volume of the cabinet is necessary for what lives inside.
Unlike a standard home theater sub (like an SVS or Klipsch), the B119 is dual-purpose.
Duration: 60 minutes. Total points: 100. cerwin vega b119
Section A — Short answer (4 × 5 pts = 20 pts)
Section B — Technical concepts (3 × 10 pts = 30 pts)
5. Given a B119 with a rated nominal impedance of 8 Ω and a sensitivity of 95 dB (1 W/1 m), calculate the approximate SPL at 1 m when driven with 50 W. Show formula and result. (Assume 3 dB increase per doubling of power.)
6. Explain the differences between sealed, ported, and folded-horn enclosures in terms of low-frequency extension, efficiency, and transient response; state which enclosure traits best match Cerwin Vega’s design priorities for high-SPL bass.
7. Sketch (conceptually, no drawing required) a measurement plan to determine the B119’s low-frequency –3 dB point and impedance curve using a measurement microphone, pink noise, and an audio interface. List steps and required settings.
Section C — Practical tasks (3 × 10 pts = 30 pts)
8. You have a small live venue and one B119. Propose speaker placement and crossover/eq settings (bandpass limits, subsonic filter, suggested high-pass for mains, and a basic EQ profile) to maximize clarity and audience-impactful bass while protecting the driver. Assume mains full-range speakers handle mid/high.
9. A customer reports distorted bass from a B119 at moderate volumes. Provide a troubleshooting checklist (ordered) covering signal chain, measurements, and driver/voice-coil checks. Include one example measurement (what to measure, expected vs problem reading).
10. Compare two hypothetical used B119s for purchase. Provide a one-paragraph decision justifying which to buy given these facts:
Section D — Extended answer (1 × 20 pts = 20 pts) 11. Write a short expert recommendation (400–600 words) for integrating a Cerwin Vega B119 into a DJ rig that currently uses active two-way tops and no subwoofer. Cover physical placement, crossover points and slopes, polarity/phase considerations, limiting/protection, expected performance trade-offs, and one example settings table (crossover frequency, slope, sub level relative to mains in dB, limiter threshold).
Examples: include
Grading rubric (brief)
End of exam.
Cerwin-Vega B-119 (often referred to as part of the "Earthquake" series) is a vintage, high-performance 18-inch folded horn subwoofer designed for professional sound reinforcement and theater use [2, 3]. Key Technical Specifications Driver Type: Features a single 18-inch woofer (originally typically the model) [2]. Cabinet Design: Utilizes a folded horn
enclosure, which is a hallmark of Cerwin-Vega's "Earthquake" line. This design is engineered to maximize bass output and efficiency over long distances. Power Handling:
While specific vintage ratings can vary by the exact driver installed, these cabinets were typically rated for high-wattage professional use (often around 400–600 watts RMS for the original drivers). Impedance: Standard models were typically , though some configurations or replacement drivers may be Performance Characteristics High Sensitivity:
Known for delivering very high Sound Pressure Levels (SPL) with relatively low input power compared to modern direct-radiator subs. Deep Bass Extension:
Designed to provide impactful low-frequency response, making them a staple for dance floors, cinemas, and outdoor concerts in the 1970s and 80s. Durability: The cone is a high-strength pressed paper composite
The cabinets are heavy and rugged, built to withstand the rigors of touring and professional PA applications [3]. Current Market Status Used/Vintage Availability:
The B-119 is no longer in production. They are primarily found on the used market through sites like Auction Houses Maintenance:
Many vintage B-119 units may require "re-foaming" of the woofer surrounds or replacement drivers, as the original foam often degrades over decades. replacement parts for a B-119, or are you trying to determine its current resale value
Let's address the elephant—or rather, the massive 19-inch woofer—in the room. While most manufacturers stick to 12s, 15s, or 18s, Cerwin Vega went with a 19-inch driver for the B119.
Why 19 inches? It’s about surface area. A 19-inch cone moves significantly more air than an 18-inch cone. While a 15-inch subwoofer gives you punch, a 19-inch subwoofer gives you chest compression.
The amplifier is external (passive subwoofer), which is actually a pro-audio advantage. It allows you to choose the right amp for your room (though CV sells matching amps if you want the branded stack). This is a two-person lift