SB-G90Mk2 Speakers – Ex display


SB-G90Mk2 Speakers – Ex display

$8,000 Was $10,500

1 in stock

**Ex display stock x1 pair only at this price**
The SB-G90 spins on Technics successful concept with a linear phase point source. That makes it possible to recreate a unique and vivid sound reproduction.

Local pickup or $11 flat rate shipping within Australia

Point-Sound-Source Speaker System

One ideal in reproducing sound with full spatial expression is to ensure that the wave-fronts emitted from the speaker units are aligned at any listening position, i.e., providing a point sound source. While inheriting the linear phase concept, the SB-G90 has newly developed two-way coaxial cone units (including mid-range and tweeter) targeting high-speed reproduction with enhanced high sensitivity.

Phase Precision Driver
(Coaxial 2-way Speaker Unit)

A lightweight, high-rigidity anodized aluminium dome diaphragm is used for the tweeter diaphragm. The driver reproduces a wide frequency range up to 100 kHz by using a new dome shape optimized through simulation, as well as achieving greater uniformity in phase characteristics by using a phase plug. In addition, the SB-G90 uses high-linearity-drive underhung voice coils, the magnetic gaps of which have had magnetic fluid injected to suppress temperature rise, thereby ensuring superior power linearity. These features provide reproduction of the high-frequency range with superb detail and beauty.
As with the tweeter, the mid-range also uses an anodized, lightweight, high-rigidity aluminium cone diaphragm. The magnetic circuit achieves low distortion and enhanced drive power by using large magnets, copper caps, and high-linearity-drive underhung voice coils. Also, the support structure provided by the tough die-cast frame has resonance-dispersing arms, thereby thoroughly eliminating even the slightest unnecessary resonant sound. These features enable mid-range reproduction with excellent precision and response.
In addition, the mid-range diaphragm uses a cone shape in which its sound generation centre in the axial direction is closer to the sound generation centre of the tweeter, and the position of the axial direction of the dome tweeter placed in the centre of the mid-range diaphragm is precisely adjusted, thus achieving linear phase reproduction by integrating the sound in each range without time lag. Also, the inside end of the mid-range diaphragm has a smooth shape so there is no deterioration of tweeter sound characteristics, with the diaphragm being constructed to deliver the sound emitted from the tweeter directly to the listening space. This reproduces mid-range and highs with superb precision and response, as well as excellent clarity in sound imaging.

BDMA (Balanced Driver Mounting Architecture

With the conventional method of mounting a speaker unit to a baffle, the centre of gravity of the speaker unit was located away from the support points, and so the force acting on the voice coil when driving the speaker produced vibration of the entire speaker unit. This produced distortion in the sound waves generated from the diaphragm, resulting in deterioration of sound quality. In addition, mounting the speaker unit to the baffle is a configuration that easily transmits vibration of the speaker unit itself to the baffle, and so unnecessary vibration sound was produced from the baffle, again with deterioration of the sound quality.

With Balanced Driver Mounting Architecture, the speaker unit is mounted to a sub-baffle installed inside the cabinet at the speaker unit’s centre of gravity, suppressing vibration of the speaker unit. Also, because the speaker unit is not mounted to the baffle on the front, transmission of unwanted vibration from the speaker unit to the baffle is suppressed. This makes it possible to reduce distortion in the sound waves generated from the diaphragm and reduce unwanted vibration sound from the baffle, for reproduction of a sound field with excellent sound imaging featuring impressive realism and clarity, allowing visualization of the fine details of each and every sound.

16cm Low-distortion Long-stroke Woofer

The woofers have features such as double magnets producing robust drive power, and magnetic circuits with high-linearity-drive overhung voice coils, copper rings, and aluminium short rings. This newly developed long-stroke unit achieves low-frequency reproduction with wide dynamic range as well as excellent low distortion and response even for a large excursion. Also, the support structure of the tough die-cast frame disperses resonance, thereby thoroughly eliminating even the slightest unnecessary resonant sound. And, a lightweight, high-rigidity anodized aluminium cone diaphragm is used to ensure uniformity in tone with the mid-range and high frequencies.
These features reproduce robust, powerful bass.

High-quality Network Circuit

The high-precision network circuit was created through repeated listening and redesign, in order to maximize the performance of each speaker unit and achieve well-balanced sound. High-quality parts, such as a polypropylene film capacitor, an air-core choke coil, and OFC wire used for connection were carefully selected by examining their properties.

In order to prevent sound vibration emitted into the cabinet by the speaker units from affecting the network, the network is installed in its own compartment separated from the speaker units, thereby achieving reproduction of sound providing an atmospheric feel.

High-rigidity Cabinet

Cabinet strength is ensured inside the cabinet by using a cross construction with sub-baffles to which the speaker units are mounted and horizontal reinforcing panels. A separate sub-baffle is used for each speaker unit, which minimises sympathetic vibration between speaker units. In addition, differentiated use of two kinds of absorbent acoustic materials with optimal placement inside the cabinet suppresses internal standing waves and reduces incidental sound due to reflection in the cabinet.
Also, multiple polyurethane (PU) coatings on the cabinet surface dampen cabinet vibration, thereby thoroughly suppressing the production of unnecessary sound. These features reproduce a vast sound field with excellent sound imaging.

Type: 3-way floorstanding speaker with bass reflex
Woofer: 2 x 16 cm
Midrange: 16 cm
Tweeter: 2.5 cm
Sensitivity: 86 dB
Impedance: 4 ohms
Frequency range: 33 Hz – 90 kHz (-10 dB)
Crossover frequencies: 500 Hz, 3400 Hz
Maximum power handling: 200 W
Recommended amplifier power: 40-200 W
Dimensions and weight: 111.4 x 29.2 x 36.6 cm / 35 kg
Finish: Black piano lacquer

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

At Len Wallis Audio, whether you’re purchasing in store, over the phone or online through our ecommerce store, we want you to be completely satisfied with your purchase.

Our Refund, Return and Repairs Policy is here to clarify any concerns or questions you might have prior to you making a purchase from us. This way you can be sure of our policy on refunds, returns and repairs and your rights under the Australian Consumer Law.

We also recommend you immediately inspect any goods that you receive from us to ensure you are completely satisfied with the goods, including that the goods are of acceptable quality, and match the description we have provided to you.

If you have any questions about this policy, please contact us at or 02 9427 6755

We require a receipt or proof of purchase.

  • Please do not send your purchase back to the original manufacturer.
  • There are certain situations where only partial refunds are granted (if applicable). For example:
    • Any item not in its original condition, is damaged or missing parts for reasons not due to our error
    • Any item that is returned for reason of change of mind more than 14 days after delivery or purchase from the store.

Consumer Guarantees and Your Rights under the Australian Consumer Law

Refer to our page for more information.

Goods Damaged in Transit.

If any goods arrive damaged, please contact us as soon as possible. Len Wallis Audio will arrange to have the damaged goods returned and either arrange for a replacement of the goods or refund the price to you. Damaged goods must be returned in the condition received by you with all original packaging, accessories and/or manuals.


Refunds will be normally be processed within five (5) days.

Delivery Charges

Where Len Wallis Audio considers the goods to have breached a consumer guarantee, any shipping costs to return the goods to Len Wallis Audio will be at our cost.

Returns and Repairs.

You may visit Len Wallis Audio and a staff member will assist you with any return or repair. This may include inspecting the goods, arranging for the goods to be repaired, or providing you with a replacement.

Goods must be returned within a reasonable time. 

If any goods cannot be easily returned to us due to their size, the fault or because they have been affixed or installed in your premises, please contact us and we will arrange an inspection to assess the goods.

Goods returned for repair will be assessed and/or repaired within a reasonable time. You may be provided with an indicative repair time, which time may vary due to reasons beyond ours or the repairer’s reasonable control, such as part availability and incorrect fault description.

You may be required to pay labour, assessment and/or freight fees, such as where goods are assessed to have been damaged by misuse or accident, or where your rights under the Australian Consumer Law or any manufacturer’s warranty do not apply. We may provide you with an indicative fee, which may vary due to reasons beyond our control.

If any goods that you return are capable of retaining user generated data such as files stored on a hard drive, and songs stored on a portable media player, the replacement or repair of the goods may result in loss of the data. In these circumstances, we recommend you back up data to prevent data loss, and remove sensitive or confidential data, as a party assessing and/or repairing your goods may be required to view data in the course of carrying out the assessment. We will not be responsible for any data loss.

In some circumstances, goods presented for repair may be replaced by refurbished goods of the same type rather than being repaired. Refurbished parts may be used to repair the goods.

Contact Us

Where you have any questions or concerns relating to your Order, please immediately contact us

We understand that sometimes you may simply change your mind about a purchase or have made a wrong selection. In these situations, you have 14 days in which to return your item for a refund, exchange or store credit. If more than 14 days has passed since your purchase we can’t offer you a refund, exchange or store credit.

To be eligible for a return, refund or store credit your item must be in the same condition that you received it. Which is to say, it must be in the original unopened packaging, and in ‘brand new’ saleable condition.

Please note that current Australian Consumer Law does not require us to offer a ‘Change of Mind’ refund. Rather Len Wallis Audio offers 14 day ‘Change of Mind Policy’ in good faith. For more information on consumer rights and guarantees, please visit the Australian Competition and Consumer Commission web site.