The SteinMusic Top Line L Speakers - SteinMusic Store

Topline Bob L

Name: Topline Bob L
Brand: SteinMusic
SKU: 30001112
Price: 72000.00 EUR
Availability: InStock

The Topline Bob L combines a large horn with an open baffle and active bass. For medium-sized rooms where music should sound spacious and free, without the sound of a cabinet.

· Open baffle loudspeaker with horn
· 1500 watts of active bass per loudspeaker, tuned via DSP
· Upgradable to the Topline Bob XL

€72,000

Delivery and set-up in your room

Personal consultation

Arrange a listening session

Specifications

Sensitivity: 91 dB (1 W / 1 m)
Impedance: 4 ohms
Crossover frequencies: 4000 Hz / 570 Hz / 37 Hz (active)
Frequency range: 20 Hz to 21 kHz (-3 dB)
Height: 1250 mm, with horn 1750 mm
Width front / back: 300 mm / 510 mm
Depth: 355 mm, with horn 565 mm
Horn diameter: 750 mm
Weight: 74 kg per loudspeaker

Technical details

Scope of delivery: 1 pair of loudspeakers
Principle: horn for midrange and treble, open baffle for lower midrange and bass
Lower midrange: 3 × 10 inch Kevlar diaphragms with carbon composite per loudspeaker, 200 square inches
Bass: 6 × 12 inch active with carbon composite per loudspeaker, approx. 600 square inches
Bass amplifier: 1500 watts per loudspeaker, DSP-controlled
Amplifier for the passive section: from 30 watts
Room: medium-sized rooms, listening distance up to 3 m
Upgrade: Bob XL Upgrade
Material: wood
Colours: cabinet and horn individually selectable
Manufacture: handmade in Germany

MODULAR UPGRADE

With the Bob XL Upgrade, your Bob L becomes a Topline Bob XL.

FOR MEDIUM-SIZED ROOMS

Designed for listening distances of up to three metres, with spacious, calm imaging.

HANDMADE IN GERMANY

We build the crossover components and internal wiring ourselves in Mülheim an der Ruhr.

room instead of box

Open baffle loudspeaker with a large horn

The horn, 750 millimetres in diameter, connects the diaphragm with the air in the room. Fine details remain audible, voices gain body. We deliberately do not use compression drivers, because what matters to us is a calm, full tone.

Lower midrange and bass work in an open baffle. Without a closed cabinet, the box sound disappears, the music detaches from the loudspeaker and fills the room with depth and colour.

The TopLine L plays exceptionally balanced, gentle and pleasant.

hifitest.de 12/2017

The Topline Bob L delivered an arresting three-dimensional soundstage and marvelous range of colors.

Jason Victor Serinus, Stereophile

The cabinet-free bass range sounds uniquely uncoloured and free. Outstanding!

Holger Barske, HiFi Test

from bob l to bob xl

A loudspeaker that grows with you

The Bob L has the same footprint as the Topline Bob XL, at two thirds of the height. With the Bob XL Upgrade, we extend it to a Bob XL when your room or your expectations grow.

If you want even more foundation after that, you can add Topline XL Subwoofers to turn the Bob XL into a Bob XL+.

Construction

How the Topline Bob L is built

Open baffle

The drivers work without a cabinet and reproduce impulses without colouration.

Large diaphragm area

Around 600 square inches of bass area per loudspeaker from six 12-inch drivers. The diaphragms move little and stay within their linear range.

Line array in the lower midrange

Three 10-inch drivers with the same dispersion as the horn. Lower midrange and mids blend seamlessly.

Controlled bass dispersion

The bass is designed to barely excite room resonances.

Carbon composite

All diaphragms are coated by hand with Maestro lacquer and carbon composite. The natural resin lacquer guides the diaphragm's own resonances instead of damping them. The sound stays consistent from bass to treble.

Crossover from our own workshop

Critical crossover components and the internal wiring are made in our workshop in Mülheim an der Ruhr.

Topline Bob L mit grauem Horn im Showroom

Hörraum im SteinMusic Showroom mit Topline Lautsprechern

For medium-sized listening rooms

A pair of Topline Bob L is designed for rooms with a listening distance of up to about three metres. The large horn sits on top of the cabinet and spreads midrange and treble evenly into the room. The line array in the lower midrange has the same dispersion as the horn, creating a coherent sound image.

The bass

Six 12-inch bass drivers work in each loudspeaker, three on each side of the cabinet. This balances the impulses and keeps the cabinet calm. A DSP with 1500 watts controls the bass and adapts it to your room. The dispersion is chosen to excite room resonances as little as possible.

The right electronics

Midrange and treble work passively, the bass powers itself. Your electronics therefore do not need to drive power-hungry bass drivers. Valve, hybrid or transistor: amplifiers from 30 watts are sufficient.

Made in Mülheim an der Ruhr

All diaphragms are treated with carbon composite so that the tonal character stays consistent from the bass to the treble. Critical crossover components and the internal wiring are made in our own workshop. We finish cabinet and horn in the colour of your choice.

Frequently asked questions about the Topline Bob L

Can I listen to the Bob L before buying?

Yes. You can listen to the Topline Bob L in our listening room in Mülheim an der Ruhr or at one of our specialist dealers. Get in touch and we will arrange an appointment with you.

Which room is the Bob L suited for?

A pair of Bob L is designed for medium-sized rooms with a listening distance of up to about three metres. For larger rooms and greater listening distances, the Topline Bob XL is the right choice. We adapt the bass to your room via DSP.

Which amplifier do I need for the Bob L?

The bass has its own DSP-controlled amplifier with 1500 watts. Your electronics only power the passive section. Valve, hybrid or transistor amplifiers from 30 watts are sufficient. You choose your amplifier by sound, not by power.

How does the upgrade to the Bob XL work?

Bob L and Bob XL share the same footprint. With the Bob XL Upgrade, we extend your Bob L to a Bob XL, so you do not need to buy new loudspeakers. Get in touch and we will advise you on the process and costs.