KEF SP1738 Uni Driver Mf Hf Tweeter Woofer Q150 LS50 Mf/hf

( Brand: Kef ), ( Manufacturer Part Number: SP1738 ), ( Compatible Brand: For Kef ), ( Type: Mf/lf Tweeter Driver ), ( Unit Type: Unit ), ( Size: 5.25 ), ( Compatible Model: Ls50, Uni-q Mf, Q150, Lsx ), ( Unit Quantity: One ), ( Country Of Origin: United Kingdom )

Review KEF Uni q Driver Array Mf/hf Tweeter Woofer Black

The **KEF Q150 LS50 Uni-Q Driver** is a high-performance, premium loudspeaker driver that exemplifies the British audio engineering legacy of KEF, renowned for its groundbreaking Uni-Q technology and meticulous attention to acoustic precision. Designed as the centerpiece of the **LS50** series, this mid-range driver is engineered to deliver an unparalleled listening experience with exceptional clarity, depth, and dynamic range. The **Q150** features a **1738** series tweeter, a high-efficiency, high-output unit that combines a **1.75-inch** aluminum dome with a **Q150** cone, optimized for seamless integration with the midrange driver to produce a smooth, extended frequency response. The tweeter s advanced **MF/HF (Mid-Frequency/High-Frequency)** crossover design ensures minimal phase distortion, allowing for a natural, airy soundstage that immerses the listener in the music. The **Uni-Q ** technology, a patented acoustic principle, eliminates the need for a separate crossover network by aligning the driver s acoustic centers, resulting in a more accurate and cohesive sound reproduction. This innovation reduces phase cancellation and enhances the driver s ability to reproduce intricate details, from the delicate nuances of a violin s bow to the thunderous impact of a bass drum. The **LS50** series is built for audiophiles and professional sound systems, offering a robust yet refined performance that bridges the gap between midrange warmth and high-frequency clarity. Whether deployed in a high-end home theater, a critical listening room, or a professional studio, the **KEF Q150 LS50 Uni-Q Driver** delivers a sound that is both powerful and meticulously detailed, embodying KEF s commitment to acoustic excellence.

### **Pros and Cons of buying a Kef SP1738 Q150 LS50 Uni-Q Driver (MF/HF Tweeter Woofer)**

1. **High-End Sound Quality** The SP1738 is a premium reference speaker, known for its accurate, detailed, and immersive audio reproduction. The Uni-Q driver technology (combining midrange, high-frequency, and woofer elements) delivers a balanced soundstage with excellent clarity and depth.

2. **Superior Build Quality** Kef is renowned for its meticulous craftsmanship, and the SP1738 features high-grade materials, including a solid wood cabinet with a high-gloss finish. The internal components are also well-engineered for durability and performance.

3. **Wide Frequency Response** The LS50 woofer and the Q150 tweeter work in tandem to cover a broad range of frequencies, from deep bass to crisp highs, making it suitable for audiophiles who demand precision.

4. **Reference-Quality Design** As part of Kef s reference speaker line, it is optimized for critical listening, offering a neutral and transparent sound signature that highlights the nuances of music.

5. **Compatibility with High-End AVR Systems** The SP1738 is designed to integrate seamlessly with high-end home theater receivers, providing excellent imaging and dialogue clarity for film and music.

6. **Long-Term Value** While expensive, Kef speakers are built to last decades with proper care, making them a worthwhile investment for serious audio enthusiasts.

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1. **High Cost** The SP1738 is a premium speaker, and its price reflects that. For casual listeners or those on a budget, this may be prohibitive, especially when paired with a high-end amplifier or receiver.

2. **Not Ideal for Small Rooms** Due to its size and design, the SP1738 is best suited for larger listening spaces. In smaller rooms, the sound may feel too dominant or lack proper diffusion, leading to potential reflections and uneven frequency response.

3. **Requires a Quality Amplifier** To fully appreciate the SP1738 s capabilities, it needs a high-quality amplifier or AV receiver with sufficient power and clean signal delivery. Pairing it with a mediocre amp will not yield optimal results.

4. **Limited Bass Extension (Compared to Subwoofers)** While the LS50 woofer provides solid midrange and lower bass, it lacks the deep extension of a dedicated subwoofer. For a full-range experience, a subwoofer may still be necessary for some listeners.

5. **Not Portable** Like most high-end reference speakers, the SP1738 is stationary and not designed for on-the-go use. Its size and weight make it impractical for travel or temporary setups.

6. **Learning Curve for Optimal Setup** Achieving the best performance requires careful placement, room treatment, and possibly equalization. Novice users may struggle to get the most out of the speaker without some experimentation.

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The **Kef SP1738 Q150 LS50 Uni-Q driver** is one of the finest reference speakers available, offering unmatched sound quality, build excellence, and audiophile-grade performance. It is ideal for serious music lovers, home theater enthusiasts, and those who prioritize accuracy and immersion over convenience or portability.

However, its high cost, suitability for larger rooms, and requirement for a premium amplifier or receiver may make it less accessible to casual listeners or those with limited budgets. If you are committed to high-fidelity audio and willing to invest in a top-tier listening experience, the SP1738 is an exceptional choice. For those seeking a more budget-friendly or versatile option, alternatives like the **Kef LS50 Meta or Q150 standalone drivers** (without the Uni-Q combination) or other mid-range reference speakers may be worth considering.

- You are an audiophile or home theater enthusiast who demands the best sound quality.

- You have a spacious room optimized for speaker placement.

- You are willing to invest in a high-end amplifier or AV receiver to complement it.

- You prioritize long-term value and durability over portability or cost efficiency.

- You have a smaller room or limited space.

- Your budget is constrained, and you prefer a more affordable yet still high-quality speaker.

- You prioritize portability or flexibility in speaker placement.

For most dedicated audiophiles, the SP1738 is a **strong recommendation** it is a speaker that delivers on its promise of reference-grade performance. However, weigh its pros and cons carefully against your specific needs and budget before making a purchase.

Details:

5.25 inch MF driver works as it should, does the tweeter. Excellent and rarely available replacement driver. Black KEF driver from a LS50 or Q150.

part #: sp1738 prices

• $125.00-$1439.99

specifications speakerpartgo:

• brand: Kef
• mpn: Sp1738
• compatible brand: For Kef
• type: Mf/lf Tweeter Driver
• unit type: Unit
• size: 5.25
• compatible model: Ls50, Uni-q Mf, Q150, Lsx
• unit quantity: One
• country of origin: United Kingdom

offer speakerpartgo:

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

general speakerpartgo:

• condition: Used
• TV, Video Audio Parts > Speaker Parts Components > Other Speaker Parts Comp

seller speakerpartgo:

• city: Merritt Island, Florida
• # reviews: 46
• rating: 100.0%

shipping speakerpartgo:

• transit: 5-11 Days
• service: USPS Priority Mail
• carrier: USPS
• type: Calculated
• cost: $41.15
• class: Expedited

payments speakerpartgo:

• wallet: Paypal
• credit card: Mastercard
• other

returns speakerpartgo:

• policy: No Returns

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