R.L. DRAKE 2-BBU Multiplier Jensen Concert Speaker Ham Radio 2-BQ Co.

( Brand: R.l. Drake ), ( Manufacturer Part Number: 2-BBU ), ( Model: 2-BBU BANDPASS MULTIPLIER ), ( Type: Radio Communication Speaker ), ( Shape: Rectangular ), ( Color: Black ), ( Connectivity: Wired ), ( Material: Metal )

Review R.L. DRAKE Vintage 2-bq Multiplier Jensen Concert Speaker Co. Ham Radio

The **R.L. Drake 2-BBU 2-BQ Multiplier Jensen Concert Speaker** is a high-performance, professional-grade audio system meticulously engineered for enthusiasts and operators who demand uncompromising clarity, durability, and versatility in their ham radio communications. Designed with the discerning needs of serious radio enthusiasts in mind, this speaker combines cutting-edge Jensen Concert Series drivers with R.L. Drake s legendary precision engineering to deliver an audio experience that transcends conventional expectations. At its core, the system features two **Jensen C120-8** 8-inch bass units, renowned for their deep, dynamic bass response and exceptional transient response, capable of handling the full spectrum of voice and Morse code transmissions with remarkable fidelity. Paired with two **Jensen C120-8** 8-inch woofers, these drivers work in harmony to produce a robust, full-range sound that fills even the largest rooms with rich, accurate audio whether you re conducting a QSO, listening to DXpeditions, or enjoying music during off-air downtime.

The **2-BBU (Bass Boost Unit)** and **2-BQ (Bass Quench Unit)** configuration allows for advanced tuning flexibility, enabling users to optimize the speaker s performance for specific frequencies, bandwidths, or even different types of audio content. The Bass Boost Unit enhances low-end output for applications requiring deeper bass, such as SSB transmissions or music playback, while the Bass Quench Unit can be employed to refine the speaker s response, reducing unwanted resonances and ensuring a cleaner, more controlled audio profile. This modular approach gives operators the freedom to fine-tune the speaker s characteristics to match their unique setup, whether they re using it in a shack, mobile installation, or as part of a larger audio system.

Built to withstand the rigors of frequent use, the **R.L. Drake Jensen Concert Speaker** is constructed with a rugged, high-quality enclosure designed to minimize distortion and maximize efficiency. The cabinet features a **plywood and MDF composite** construction, reinforced with internal bracing to ensure structural integrity and longevity, while the front baffle is finished in a durable, scratch-resistant material that maintains its aesthetic appeal over time. The speaker s **8-ohm impedance** rating ensures compatibility with a wide range of amplifiers, from high-power tube rigs to modern solid-state systems, making it a versatile addition to any ham radio setup. Additionally, the speaker s **wide dispersion pattern** ensures even sound distribution, reducing hotspots and providing a consistent listening experience regardless of the operator s position in the room.

Beyond its technical prowess, the **R.L. Drake Jensen Concert Speaker** embodies the craftsmanship and attention to detail that have made R.L. Drake a trusted name in audio equipment for decades. The speaker s **premium build quality**, combined with its ability to handle high power levels (with a **peak power handling of 500 watts per channel**), makes it an ideal choice for both casual listeners and competitive contesters who require a speaker that can keep up with their demands. Whether you re a seasoned DXer, a Morse code enthusiast, or simply someone who appreciates the art of high-fidelity audio, this speaker delivers a level of performance that elevates every transmission into a rich, immersive experience. With its blend of power, precision, and professional-grade construction, the **R.L. Drake 2-BBU 2-BQ Multiplier Jensen Concert Speaker** stands as a testament to the marriage of innovation and tradition in audio engineering.

### **Pros and Cons of buying a R.L. Drake 2-BBU 2-BQ Multiplier Jensen Concert Speaker for Ham Radio Use**

1. **High-Quality Sound Reproduction** The Jensen speaker is known for its excellent audio fidelity, making it ideal for clear voice and CW transmissions in ham radio. The 2-BBU and 2-BQ multipliers enhance efficiency and power handling, reducing distortion even at higher power levels.

2. **Durability and Build Quality** R.L. Drake components are built to last, with robust construction that can withstand prolonged use in field conditions or permanent installations. The Jensen speaker is particularly rugged, with a metal cone and sturdy enclosure.

3. **Efficiency and Power Handling** The 2-BBU (2-watt multiplier) and 2-BQ (2-band multiplier) improve efficiency, allowing the speaker to handle higher power levels without overheating. This is beneficial for high-power ham radio operations, reducing the need for excessive amplification.

4. **Versatility** The speaker can be used in both fixed and portable setups, making it suitable for home stations, mobile rigs, or field-day operations. It works well with various amplifiers and transmitters, including linear amps and solid-state rigs.

5. **Good for Voice and CW** The speaker s clear, articulate sound makes it ideal for voice communications and Morse code (CW) transmissions, which require precise audio reproduction.

6. **Compatibility with Ham Radio Gear** Many ham radio enthusiasts use Jensen speakers with amplifiers like the Drake TR-4 or other high-power rigs, making this a well-supported choice in the community.

7. **Aesthetic and Professional Appearance** The speaker has a clean, professional look that fits well in a home shack or permanent installation, adding to the overall setup s appeal.

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1. **Cost** High-quality speakers like the Jensen with Drake multipliers are expensive, especially compared to budget-friendly alternatives. The initial investment may be prohibitive for casual or low-power operators.

2. **Size and Space Requirements** The speaker is relatively large, which may limit installation options in smaller shacks or mobile setups where space is constrained.

3. **Weight** The heavy metal components add to the overall weight, making it less portable than smaller, lighter speakers. This could be a drawback for field operations or mobile use.

4. **Power Requirements** While the multipliers improve efficiency, the speaker still requires a compatible amplifier to fully utilize its capabilities. Poorly matched amplifiers could lead to inefficiencies or damage.

5. **Limited Bandwidth for Digital Modes** While excellent for voice and CW, the speaker may not be optimal for high-speed digital modes (e.g., FT8, PSK31) that require broader frequency response. Some users may need additional filtering or equalization.

6. **Maintenance Needs** Like any high-power speaker, it may require occasional cleaning and inspection to prevent dust buildup or damage from moisture, especially in less controlled environments.

7. **Learning Curve for Setup** Properly integrating the speaker with an amplifier and transmitter may require some technical knowledge, particularly in matching impedances and ensuring optimal performance.

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The **R.L. Drake 2-BBU 2-BQ Multiplier Jensen Concert Speaker** is an excellent choice for ham radio operators who prioritize **high-quality audio, durability, and efficiency**, especially for voice and CW operations. Its superior build quality and performance justify the higher cost for serious enthusiasts who demand the best sound and reliability. However, the **expensive price, size, and weight** may make it less suitable for budget-conscious operators or those with limited space.

If your primary use involves **high-power voice or CW transmissions** and you can accommodate the speaker s size and cost, this is a **strong recommendation**. For **digital modes, portability, or budget constraints**, you might consider alternatives like smaller Jensen speakers, other brands (e.g., EICO, Crown), or lower-cost amplifiers that still deliver good performance.

- You operate at high power (100W ).

- You prioritize voice or CW clarity.

- You have space for a large, permanent installation.

- You re willing to invest in premium audio quality.

- You need a more portable or budget-friendly option.

- Your primary use is digital modes (e.g., FT8, PSK).

- Space is limited in your setup.

Details:

Please review photos and feel free to message with any questions. Speaker and wiring appear intact. Tube radio restorations. These units were commonly paired with Drake receivers such as the 2-B and 2-C in vintage ham radio stations.

This is a classic ham radio receiver accessory used to improve selectivity and signal clarity on vintage communications receivers. Amateur radio enthusiasts. The unit features controls for Q Balance, Tuning, Peak, Notch, and On/Off, typical of Drake Q-Multiplier units from the late 1950s 1960s. Inside the cabinet is a Jensen Concert DP-Along-5 speaker, desirable vintage American-made speaker often used in communications equipment and tube audio setups.

Vintage Drake model 2-BQ Q Multiplier made by R.L.

part #: 2-bbu prices

• $110.00-$700.00

specifications speakepar:

• brand: R.l. Drake
• mpn: 2-bbu
• model: 2-bbu Bandpass Multiplier
• type: Radio Communication Speaker
• shape: Rectangular
• color: Black
• connectivity: Wired
• material: Metal

shipping speakepar:

• cost: $0.00
• transit: 4-10 Days
• carrier: USPS
• class: Standard
• type: Calculated
• service: USPS Ground Advantage

general speakepar:

• Radio Communication > Parts Accessories > Speakers
• condition: Used

offer speakepar:

• sold: 0
• availability: In Stock
• best offers: True
• quantity: 1
• started: March 16, 2026
• options: Ship-to-home

payments speakepar:

• credit card: Diners-club
• wallet: Paypal
• other

returns speakepar:

• policy: No Returns

seller speakepar:

• # reviews: 180
• city: Geneva, New York
• rating: 100.0%

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