Nelson
Bass Extender + Stand Solution
Nelson
Harbeth's Bass Extender + Stand Solution
Nelson
Bass extender + stand solution

Nelson®

The Nelson bass extender + stand solution delivers intense bass performance for mini monitors, including all Harbeth P3ESR and BBC LS3/5A models, without compromising space. Its innovative design incorporates a Harbeth 5-inch drive unit and 50 watts of digital amplifier power, resulting in exceptional bass control, perfect integration and power output.

Remove the stress of stand selection by choosing Nelson – the ultimate Harbeth stand.

Finish:

Black

Nelson®

The Nelson bass extender + stand solution delivers intense bass performance for mini monitors, including all Harbeth P3ESR and BBC LS3/5A models, without compromising space. Its innovative design incorporates a Harbeth 5-inch drive unit and 50 watts of digital amplifier power, resulting in exceptional bass control, perfect integration and power output.

Remove the stress of stand selection by choosing Nelson – the ultimate Harbeth stand.

Finish:

Black

Nelson®

The Nelson bass extender + stand solution delivers intense bass performance for mini monitors, including all Harbeth P3ESR and BBC LS3/5A models, without compromising space. Its innovative design incorporates a Harbeth 5-inch drive unit and 50 watts of digital amplifier power, resulting in exceptional bass control, perfect integration and power output.

Remove the stress of stand selection by choosing Nelson – the ultimate Harbeth stand.

Finish:

Black

SUBstantial bass
Designed to deliver depth and accuracy in equal measures

More bass in the same space®

A high-performance design that produces dramatic bass without compromising space.

More bass in the same space®

A high-performance design that produces dramatic bass without compromising space.

Sub-stand solution

  • All-round solution to the stand and sub-woofer problem
  • Makes a small speaker sound big
  • Compatitble with P3ESR / Harbeth LS3/5a / all LS3/5a variants – over 100,000 in the market
  • Complete isolation; the Nelson has no impact on the host speaker
  • DSP technology

RRP £2735 / Pair

Power with control

With the sub-level control, the listener can adjust the bass up and down to suit personal preference, listening material and room characteristics.

A smart approach

The Nelson’s digital signal processing unit optimises the crossover frequency, phase and shape so the Nelson takes over seamlessly as the host speaker’s bass rolls off.

No test equipment or technical knowledge is needed to integrate Nelson into your system. It’s truly a plug-in-and-play system with only one control for bass level, which you can set to taste.

"The Harbeth smoothness that makes for continued fatigue-free listening is further enhanced with the extra richness the Nelson subwoofer stand has brought to the mix. If you own a pair of Harbeth P3ESR or LS3/5A equivalents, you owe it to your ears to match them with this ultimate accessory."
Robert Edwards - Bafta-Award winning Sound Director
Read blog
"The Harbeth smoothness that makes for continued fatigue-free listening is further enhanced with the extra richness the Nelson subwoofer stand has brought to the mix. If you own a pair of Harbeth P3ESR or LS3/5A equivalents, you owe it to your ears to match them with this ultimate accessory."
Robert Edwards - Bafta-Award winning Sound Director
Read blog

The Harbeth smoothness that makes for continued fatigue-free listening is further enhanced with the extra richness the Nelson Smart Digital Subwoofer stand has brought to the mix. If you own a pair of Harbeth P3ESR or LS3/5A equivalents, you owe it to your ears to match them with this ultimate accessory.

Robert Edwards - Bafta-Award winning Sound Director

Power with control

With the sub-level control, the listener can adjust the bass up and down to suit personal preference, listening material and room characteristics.

Power with control

With the sub-level control, the listener can adjust the bass up and down to suit personal preference, listening material and room characteristics.

A smart approach

The Nelson’s digital signal processing unit optimises the crossover frequency, phase and shape so the Nelson takes over seamlessly as the host speaker’s bass rolls off.

No test equipment or technical knowledge is needed to integrate Nelson into your system. It’s truly a plug-in-and-play system with only one control for bass level, which you can set to taste. 

A smart approach

The Nelson’s digital signal processing unit optimises the crossover frequency, phase and shape so the Nelson takes over seamlessly as the host speaker’s bass rolls off.

No test equipment or technical knowledge is needed to integrate Nelson into your system. It’s truly a plug-in-and-play system with only one control for bass level, which you can set to taste. 

Material Science

Inspired by the aviation industry, Nelson features the latest composite materials, providing high stiffness with low mass.

Experience natural sound with official Harbeth retailers

Experience natural sound with official Harbeth retailers

Specification

Specification

Technical

Digital subwoofer optimised for use with Harbeth P3ESR, BBC LS3/5A or any unvented bookshelf loudspeaker unit

110mm Harbeth-made bass drive unit in bandpass enclosure

Technical

Digital subwoofer optimised for use with Harbeth P3ESR, BBC LS3/5A or any unvented bookshelf loudspeaker unit

110mm Harbeth-made bass drive unit in bandpass enclosure

Frequency Response

35 – 75Hz ±3dB free-space

Impedance

Active, >5 kilohm transformer balanced input – presents virtually no load to main amplifier

Power

50W RMS

Power supply

Requires 24V D.C. 2.5A power supply.
5.5 / 2.1mm, centre positive. Reverse polarity protected.

Connectors

A fitted lead connects to the binding posts of the host loudspeaker (shown in Robert’s blog).

 

Size and weight (standard version)

Height (without spikes) + 20mm with spikes

730mm to top of speaker mounting plate
1145mm to top of P3ESR
970mm to P3ESR tweeter

Dimensions

350mm diameter

Weight

7.6kg each (without packing)
11.2kg each (with packing)

Finishes

Base colour

Black 

Sock colour

Black

Frequency response
35 – 75Hz ±3dB free-space

ImpedanceActive, >5 kilohm transformer balanced input – presents virtually no load to main amplifier

Power
50W RMS 

ConnectorsA fitted lead connects to the binding posts of the host loudspeaker

Power supply
Requires 24V D.C. 2.5A power supply. 5.5 / 2.1mm, centre positive. Reverse polarity protected.

Size and weight
(standard version)

Height (+ 20mm with spikes)
730mm to top of speaker mounting plate

1145mm to top of P3ESR

970mm to P3ESR tweeter

Dimensions
350mm diameter

Weight
7.6kg each (without packing)

11.2kg each (with packing)

Finishes

Base colour
Black 

Sock colour
Black 

 

Documentation

Details and Specifications

Technical

Digital bass extender optimised for use with Harbeth P3ESR, BBC LS3/5A or any unvented bookshelf loudspeaker unit.

Drive Units
110mm Harbeth-made bass drive unit in bandpass enclosure.

Frequency Response
35Hz – 75Hz, ±3dB free-space

Impedance
Active, >5 kilohm transformer balanced input – presents virtually no load to main amplifier

Power handling
50W RMS

Connectors
A fitted lead connects to the binding posts of the host loudspeaker

Power Supply
Requires 24V D.C. 2.5A power supply. 5.5 / 2.1mm, centre positive. Reverse polarity protected.

Size and weight

Height (+ 20mm with spikes)
730mm to top of speaker mounting plate

1145mm to top of P3ESR

970mm to P3ESR tweeter

Dimensions
350mm diameter

Weight
7.6kg each (without packing)

11.2kg each (with packing)

 

Finishes

Base Colour
Black

Sock Colour
Black

Details and Specifications

Technical

Digital subwoofer optimised for use with Harbeth P3ESR, BBC LS3/5A or any unvented bookshelf loudspeaker unit.

Drive Units
110mm Harbeth-made bass drive unit in bandpass enclosure.

Frequency Response
35Hz – 75Hz, ±3dB free-space

Impedance
Active, >5 kilohm transformer balanced input – presents virtually no load to main amplifier

Power handling
50W RMS

Connectors
A fitted lead connects to the binding posts of the host loudspeaker

Power Supply
Requires 24V D.C. 2.5A power supply. 5.5 / 2.1mm, centre positive. Reverse polarity protected.

Size and weight

Height (+ 20mm with spikes)
730mm to top of speaker mounting plate

1145mm to top of P3ESR

970mm to P3ESR tweeter

Dimensions
350mm diameter

Weight
7.6kg each (without packing)

11.2kg each (with packing)

 

Finishes

Base Colour
Black

Sock Colour
Black

Documentation

Manuals & Downloads

Manuals & Downloads

© All Rights Reserved
Harbeth Audio Ltd., UK
2023

© All Rights Reserved
Harbeth Audio Ltd., UK
2023

© All Rights Reserved
Harbeth Audio Ltd., UK
2023