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Cameron Oatley
ExtremeHiFi
Website author headshot
Julian Shapiro
ExtremeHiFi

Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.

What reviewers think

Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.

What are hifi reviews useful for? (1) Identifying products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've heard (this means they probably are legitimately great). (3) Identifying a product's attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we often discount what reviewers say because they heap praise on most products—and are often apprehensive about publishing strong criticism or comparisons between products. Further, they seldom have more than a few products on-hand, often relying on their memories to compare past products. Always listen for yourself.

Manufacturer details

  • SPL: 91dB 1W/1m
  • Impedance: 4 Ohm
  • Crossover Frequencies: 4000 Hz / 570 Hz/ 37 Hz (Active)
  • Frequency range: 20 Hz – 21000 Hz (-3dB)
  • Material: Birch Plywood for the Housing and solid Maple Wood for the Horn
  • Weight: 74 kg (per piece)
  • Dimensions: Height: 1250mm, Height including Horn: 1750mm, Width Front: 300mm, Width Rear: 510mm, Depth: 355mm, Depth including Horn 565mm, Diameter Horn 750mm
  • Amplifier Power: 1500 watts (bass range)
The Top Line "Bob" L has the same footprint as the Top Line "Bob" XL, with only two thirds of the height. Each speaker has an integrated, DSP-controlled active subwoofer with 1500 watt amplifier power. The rest of the loudspeaker works passively, with optimal reproduction down to 60Hz.
The Top Line “Bob” L has the same footprint as the Top Line “Bob” XL, with only two thirds of the height. Each speaker has an integrated, DSP-controlled active subwoofer with 1500 watt amplifier power. The rest of the loudspeaker works passively, with optimal reproduction down to 60Hz. Modular System Our Top Line Bob L horn speakers can be upgraded in many ways for an even better music experience. The Top Line Bob L can be converted to a Bob XL with the “Bob XL Upgrade”. If you want to achieve even more power with your Bob L, there is the possibility to link it with our Bob L subwoofer. If that’s not enough you can upgrade your Bob XL to a Bob XL+ which includes an additional subwoofer to the Bob XL.
Manufacturer Site

Brand highlights

Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:

  • They also offer a range of accessories, including room treatments and cable enhancers, alongside traditional audio components, allowing for a holistic approach to system optimization.

HIGHLINE BOBBY S  

  • Positioning: A compact horn loudspeaker designed for intimate, high-fidelity listening spaces.  
  • Description: Features a carefully matched horn tweeter that avoids compression drivers, offering detailed and natural sound with excellent impulse response. Compared to its larger siblings, it delivers precision without extended low-frequency performance, making it ideal for small rooms, modest budgets, and basic functional needs.

HIGHLINE BOBBY M  

  • Positioning: A floorstanding speaker system that builds on a compact design to serve larger rooms.  
  • Description: Integrates a passive bass extension with the high-line horn design to enhance low-frequency clarity and overall dynamics. Relative to the Bobby S, it provides deeper bass and a broader soundstage.

HIGHLINE BOBBY L  

  • Positioning: A high-performance floorstanding loudspeaker crafted for immersive, large-room listening.  
  • Description: Combines the core horn technology with dual bass extensions to achieve robust power handling and a clearly structured bass foundation while maintaining refined midrange detail. Compared with the Bobby M, it offers greater dynamic reserve and sonic depth.

TOPLINE BOB M  

  • Positioning: A slim, high-end horn loudspeaker that incorporates active bass control for versatile performance.  
  • Description: Pairs passive horn drivers with DSP-controlled active subwoofers to deliver vivid sound reproduction and an open-baffle feel. In contrast to the Highline series, it adds modern digital bass management.

TOPLINE BOB L  

  • Positioning: A flagship high-end horn loudspeaker featuring an integrated, powerful active subwoofer system.  
  • Description: Engineered with extensive diaphragm areas and DSP-controlled active bass to ensure exceptional impulse response and clean, detailed sound across a wide frequency range. Compared to the Bob M, it provides significantly increased power, modular upgrade options, and premium performance for demanding, large-scale listening environments.
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Avg. Product Price
$100,001+
Used For Sale
1
 Available (Scroll Down)
Brand Popularity
410
 of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
20
Founding Year
1980

Our take on the brand

SteinMusic, a German hifi brand, is known for their unique room treatment products called H2 Harmonizers and Magic Stones, which claim to enhance sound by altering air molecule density in listening rooms. Their horn-loaded speakers and modular designs are handmade in Germany, with the Bobby M Loudspeaker offering full-range sound from a compact size.

Look inside the brand

Brand Page

Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

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What are your favorite tracks for showcasing the strength of your products?

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From our interview with
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Brand Page

Used

SteinMusic

No items found.

What if you spend more?

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What competes at this price?

Steinway Lyngdorf
Model C
100800
/
Released
2024
The Model C speakers is for those who seek the live dipole sound and demand enhanced bass for music and movies. The formula is simple: take the legendary Model D, then scale down the footprint and add powerful boundary woofers. The result is an attention-grabbing statement system that sets a new standard for full-bodied bass reproduction.
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Steinway Lyngdorf is unique for its fully digital amplification technology and RoomPerfect system, which processes signals entirely in the digital domain and automatically adapts sound to any room's acoustics without requiring acoustic treatment. Their systems are built as closed ecosystems with components that must work together, featuring distinctive dipole speakers that emit sound from both front and back to mimic how Steinway pianos interact with a room.
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Our Summary

Product Strengths

  • Replicates the resonance of live instruments due to open speaker design
  • Digital from source to driver, minimizing sound distortion
  • Provides audio output so precise you can pinpoint each instrument's location

Product Considerations

  • The only weak link might be musical taste

Takeaway: The Model C delivers incredibly precise audio, replicating live instrument resonance with minimal distortion. If pure sound is desired, and taste in music aligns, it is a great pick.

Video review

Our take on the brand

Steinway Lyngdorf is unique for its fully digital amplification technology and RoomPerfect system, which processes signals entirely in the digital domain and automatically adapts sound to any room's acoustics without requiring acoustic treatment. Their systems are built as closed ecosystems with components that must work together, featuring distinctive dipole speakers that emit sound from both front and back to mimic how Steinway pianos interact with a room.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page

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