Duration: 60 minutes. Total points: 100.
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.
The Cerwin-Vega B-119 is a piece of legendary "old school" audio gear that belongs to the era when Cerwin-Vega dominated stages and movie theaters. Often associated with the "B" series of bass cabinets (like the famous B-36), the B-119 is a sought-after unit for those chasing the deep, physical "punch" that defined 1970s and 80s rock and roll. 🔊 The Legend of the "B" Series
Cerwin-Vega, founded by aerospace engineer Gene Czerwinski in 1954, was built on a single philosophy: loudness and efficiency
. The B-119 was part of a lineup designed to handle massive power and deliver "Earthquake" levels of bass Folded Horn Design
: Like its siblings, the B-119 often utilized a folded horn enclosure, which physically increases the path length of the sound to boost low-frequency output zZounds.com High Sensitivity
: These cabinets were designed to be incredibly efficient, meaning they could produce massive volume even with lower-wattage vintage amplifiers The "Red Surround"
: Most B-series units feature the iconic red rubber surround on the woofer, a hallmark of Cerwin-Vega’s visual and acoustic identity 🛠️ Key Technical Features
While specific documentation for the B-119 can be rare, it follows the standard "overbuilt" engineering of the vintage Cerwin-Vega professional line: Learn about Cerwin-Vega's legacy of high-quality audio cerwin vega b119
The Cerwin-Vega B119 is a classic front-vented 1x18 bass enclosure known for its high-impact low-frequency performance. Part of Cerwin-Vega's legacy in professional sound, it was typically loaded with heavy-duty 18-inch drivers to deliver the signature "kick-to-the-chest" bass preferred by club DJs and gigging musicians. Key Specifications & Design Enclosure Type: Front-vented (bass-reflex) cabinet.
Standard Driver: Often loaded with the 188EB or 189SE 18-inch drivers.
Frequency Characteristics: While specific datasheets for vintage B-series vary, these drivers are generally considered "woofers" rather than true subwoofers, excel at high-output kick drum frequencies, and are often tuned to just below 45Hz for optimal performance.
Build Quality: Constructed using heavy-duty materials, often featuring the signature Cerwin-Vega red foam surrounds on the drivers. Performance Legacy
Application: The B119 was a staple in 1970s and 80s PA systems and bass guitar rigs. Its vented design offered a more direct, immediate punch compared to the brand's larger "folded horn" (Earthquake) cabinets.
Reliability: Like most Cerwin-Vega gear, it was designed for high SPL (Sound Pressure Level) and durability under demanding mobile conditions.
Modern Maintenance: Many vintage B119 cabinets require re-foaming (replacing the deteriorated red foam surrounds) or re-coning to restore original factory performance. Kits are widely available for these specific 18-inch drivers. Duration: 60 minutes
At 90dB sensitivity, this subwoofer is incredibly easy to drive. Even at half gain, the B119 will pressurize a medium-sized living room (300–400 sq ft) easily. Crank it to 75% and your windows will start rattling. At max volume, there is very little audible distortion, though the mechanical limits of the driver become apparent on ultra-low frequencies.
If you want to feel explosions without spending $1,500 on a high-end SVS, the B119 delivers.
A subwoofer is only as good as the box it lives in. The B119 is versatile, but it prefers specific environments to truly shine.
The Sealed Box: If you are tight on space, the B119 performs admirably in a sealed enclosure. You will get a tighter, punchier response, though you will sacrifice a bit of the ultimate low-end extension. This is great for rock and metal music where kick drums need to be distinct.
The Ported Box (Recommended): To unleash the beast, put the B119 in a ported enclosure. A properly tuned ported box (usually tuned around 32Hz-35Hz) will allow this subwoofer to demonstrate its full capability. The output will be significantly higher, and the low notes will resonate deeper. This is the ideal setup for rap, trap, and electronic music.
Power Requirements: Don't let the budget-friendly nature fool you; the B119 still needs clean power. An amplifier capable of delivering a solid 300 Watts RMS at 4 Ohms is the sweet spot. Under-powering a subwoofer can be just as dangerous as overpowering it, leading to "clipping" that damages the voice coil.
| Model | B119 | XLS-15 | CVP-118 | |-------|------|--------|---------| | Woofer | 19" (frame) | 15" | 18" | | Power | 400W RMS | 400W RMS | 300W RMS | | Weight | 78 lbs | 58 lbs | 71 lbs | | Best for | Max SPL | Portable DJ | Fixed install | Section B — Technical concepts (3 × 10 pts = 30 pts) 5
When you see those iconic red surrounds, you know exactly what you’re getting: efficiency, volume, and that gut-punching low end that makes your neighbors hate you. Cerwin Vega has built a 60-year legacy on the mantra "Loud is Good," and the Cerwin Vega B119 is a perfect representation of that philosophy.
But in a market flooded with sleek, app-controlled subwoofers, does an 800-watt brute force monster like the B119 still have a place? Whether you are building a DJ rig, a home theater, or a garage party system, this article dives deep into every spec, quirk, and decibel of the Cerwin Vega B119.