GOTTENBURG

The Most Powerful Passive home Loudspeaker Ever Made!

To eclipse the sound found in a live hall one must atone for sound nodes and acoustic limitations of the hall. This is attempted by providing a nearly perfect point-source of sound directed through Gottenburg's logarithmic horn. 

 

To reproduce distortion-free bass down to below 15hz one must have a diaphragm large enough to achieve 15 hz without the use of pumping excessive amounts of air. Gottenburg's 32" wide-Band woofer needs less than 2 . 5 mm of movement (x-max) to reproduce bass near 90db (1 watt 1 meter) at 15 hz! 

 

Matched with reference tube and transistor amplification Gottenburg pushes beyond other Statement loudspeakers in usable bandwidth, efficiency, detail, imaging, tone, and sonic textures.

 

From Review Page on Gottenburg-Odin

 

Fred Crane, Musician, Audio Dealer, Audiophile,  Boston August, 2016

 

Enter the Gottenburg Odin.  It manages all of the things a mammoth statement speaker should, but that's not what makes it truly great.  So often a large speaker, horn or otherwise, is thought to be a proclaimer of maximum volume, realistic dynamics, and thunderous bass. Some even manage those.  Well the Gottenburg handles those elements with ease, but it goes further.  What it does better than any speaker in my experience are harmonic textures that exist in a live hall; those subtle undertones and overtones that make all notes richer, not just those low on the chart.  Think of it as the difference between playing a C chord on a spinet versus a C chord on a 9 ft Hamburg Steinway.  It's the richness of real music. 

 

You'll never know just how powerful a cello is until you hear it on the Gottenburg's.  (Richter on these is a physical experience.) It also manages to be seamless in the way that a single driver speaker is seamless ... incredible.

 

One can enjoy them near or far-field (impossible with most horn designs), and when thunder and God's own fury needs to erupt from the Gottenburg, you will cower and rejoice. 

Hundreds of design options: from old-world traditional to contemporary. Sea Dragons at the top or none... Finished in 30 coats of hand-rubbed colour with silver horns or in heirloom woods with natural bronze horns you build Gottenburg to fit  Your  Palace!

Gottenburg is our truest expression of  The Art of Sound

Gottenburg's "infinite" horn with unique suspension utilizes the front and back of the massive silica bronze alloy horn.

HAMBURG 

Gottenburg-Odin Hamburg

 

 

The Ultimate Gottenburg

Uncompromising solid wood construction. Cabinet superstructure made of void-free birch ply with the cabinet corners, internal bracing and massive plinth in solid hard maple No MDF! The super rigid cabinets are then finished in 30 coats of hand rubbed piano lacquer.

 

Two color options true piano black or dark burgundy piano gloss. Many custom colours are available.

 

Gottenburg Horns and other bronze parts finished in 925 sterling silver with the Norse sea dragons in solid 800 Swedish silver. The only upgrade possible for Hamburg is Solid Sterling Silver (925) Horns, suspension arms, resonator frames, base feet, and Norse Sea Dragons. 

 

   

 

 

SPECIFICATIONS:

GOTTENBURG ODIN And GOTTENBURG ODIN HAMBURG

Driver Compliment:

Hidden horn Loaded super tweeter with AlNiCo motor

 

6.5" full range driver set in bronze horn  (Hamburg with silver VC) 

 

32" wide band woofer with hybrid ceramic/AlNiCo motor

 

Logarithmic Horn: 

30" Silica Bronze-Alloy finished in natural bronze, silver, deep copper, black-silver (Hamburg finished (plated) in 925 Sterling Silver) Horns and parts cast in solid 925 Sterling silver PUR

Cabinets:

Base model: American cherry, Claro walnut or maple+ other fine woods (Hamburg in 30 coat rubbed piano finish in deep black or dark burgundy with custom colors available)

Binding Post:

Fine Silver terminals with speaker frame Earthing 

Internal Wire:  18awg solid core high tensile strength 6N wire in cotton with second run in 22awg 6N silver + silver solder (wiring optimized for detail and efficiency) 

 

Sensitivity:  102 db  (100 db Hamburg)

Time Alignment:

Drivers time-aligned mechanically and electrically.

Impedance: 6 or 12 Ohms

 

Bandwidth: 

15 Hz - 50kHz

Recommended Power:

15 - 100 high-volt tube watts

50 - 500 transistor watts

Dimensions:

73.5" H  35" W  20" D (24" at base)  

Weight:

480-520 LBS Each

 

Gottenburg's 32" wide-band woofer plays down to 15Hz with only 2 . 5 mm of x-max! Modifications include a whizzer cone (not shown) and dual ceramic/AlNiCo motor

How to Order:

GOTTENBURG 

Price: from $220,000 

 

Choose your bronze Horn finish:

Pure silica bronze (shown)

Deep copper patina +1,000 

925 silver plated +2500

Solid 800 Silver + other metal parts (PUR)

Solid 18kt red, yellow, gray or white gold (PUR)

Gottenburg sea dragon motif: (horn super tweeter frame)

Bronze (INC)

Solid silver +1500

solid palladium alloy white gold (PUR)

No sea dragons - 400.00

Choose your wood:

Persian Cedar + African wedge accents (INC) (shown)

American Claro walnut (INC)

Curly Maple (INC)

American cherry (INC)

African black ebony (PUR)

African Zebra-wood (PUR)

 

Choose your finish:

 

(Rubbed oil finish or sprayed gloss, satin or matte or Hamburg with 30 coat hand-rubbed polyester (piano Finish)

 

Hamburg 30 coat piano finish colours

Deep piano black

Deep black-red burgundy

Customer colour

 

Driver+ cap/coil Upgrade:

Duelund (Danmark) pure silver capacitor and coils + silver VC for wide-band driver 925 silver terminals + 6N silver internal wire in cotton dielectric.  (PUR)

Build time 4-6 months

Viking Acoustics

horn is based on the logarithmic shape

of the chambered nautilus

Horns cast in solid silica bronze weigh a 130 pounds each! Horns can have a satin or polished finish, finished in rose gold, or natural bronze; with many other options available.. Gottenburg Hamburg horns are finished exclusively in 925 sterling silver, black silver (for a blacked-out look)  rose gold, or choose the ultimate high-end statement: Horns and metal parts cast in solid 925 sterling silver!

Acoustic Innovations:

 

Viking Acoustics Gottenburg Horn Loading Technology:

Non-compression loading. Ultra-fidelity wide-band driver set with by-pass to the 32" wide-band woofer with an air-gap. Low frequency to mid-band from the super woofer pass through the center of the horn without disturbing the smaller driver (an acoustic trick) making a true time-coherent point source of sound. Additionally, the back side of the huge bronze horn is utilized to further augment the super woofer improving bass, dispersion and reducing distortion.

(patents pending)

 

The whole system works in unison as an organic, ultra-wide band point source of sound.

Dual stage internal/external resonating system. Ultra-rigid cabinet is tuned with the use of tone-wood resonators to virtually eliminate standing waves within the cabinet. Lower resonator is visible through the dual by-pass ports located near the bottom of the loudspeaker.

 

Featured in book of World's finest high-end loudspeakers

Gottenburg  is perfect for "Statement" tube based systems. Recommended power 10-200 wpc

Try Gottenburg Demo with earbuds or headphones!

Gottenburg Prototype: testing with 8 watt Audio Tekne vacuum tube amplifier in a large room. Few passive loudspeakers in the World can fill a large room with perfectly strong yet natural sounding bass and the demo shows Gottenburg's excellent bass-slam even with a few watts. Ideally 22+ watts of high-volt tube power or 100+ watts solid state is desired.

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