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  1. Home
  2. KLH Speakers
  3. Passive Bookshelf Speakers
  4. KLH Model Four
KLH Model Four Review
KLH Model Four - Front View

Compare To

Main Features

  • 1" Hard-Dome Tweeter
  • 4" Midrange
  • 8" Woofer
  • 46-20K Hz Frequency Response
  • 88 dB Sensitivity
  • Impedance: 6ohms
  • Weight: 47.00 lbs / 21.32 kg
  • Dimensions(HxWxD): 32.2"x13"x10.9" / 817.9 x 330.2 x 276.9mm
MSRP: $2,000 (list price)
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KLH Model Four Review
KLH Model Four KLH Model Four
Check price atAmazon›

Made by KLH · United States · since 1957 · sold through dealers

KLH Model Four is a 3-way Passive Bookshelf speaker by KLH. It was released in 2023. It features a 1" Hard-Dome Tweeter, 1 x 4" Midrange and 1 x 8" Woofer. The speaker has a frequency range of 46-20K Hz and a sensitivity of 88 dB.

KLH's Model Series of Loudspeakers

Model Four is a member of KLH's Model series of Passive speakers. The Model range revives KLH's classic American designs, led by the acoustic-suspension Model Three bookshelf. Below you can see the main specs of these speakers.

See all 4 KLH Model models compared »

KLH Model Series Speakers
Model Frequency SensitivityImpedance Woofer
KLH Model Three
Compare
46-20k Hz 88 dB6Ω 1 x 8"
KLH Model Five
Compare
42-20k Hz 90.5 dB6Ω 1 x 10"
KLH Model Seven
Compare
38-20k Hz 91 dB4Ω 1 x 13"
KLH Model Four
46-20k Hz 88 dB6Ω 1 x 8"

Frequency Response of the KLH Model Four Speaker

KLH Model Four has a Frequency response range of 46-20K Hz. With a minimum frequency of 46 Hz, Model Four delivers moderate bass depth so depending on your use case, you might want to consider adding a subwoofer to your system.

Here we have a comparison of how Model Four's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Bookshelf Speakers
KLH Model Four
Min
Average
Median
Thinking about a subwoofer for the KLH Model Four?
  • Work out the crossover setting - it follows from this speaker's 46 Hz low end
  • Every powered subwoofer we cover, whatever the budget

Impedance and Sensitivity

KLH Model Four's nominal impedance level is 6 ohms and has a sensitivity of 88 dB.

Sensitivity
Bookshelf Speakers
KLH Model Four
Min
Average
Median

Nominal Impedance of the 6 Ohms makes the KLH Model Four a relatively difficult to drive speaker compared to more frequently found 8 ohms speakers from nominal Impedance perspective.

Sensitivity

88dB of the KLH Model Four is an average sensitivity for stereo speaker so it is neither easy nor difficult to drive Sensitivity wise. Work out how loud the KLH Model Four plays in your room →

Running more than one pair from a single amplifier? Check the load it would present →

What amplifier does the KLH Model Four need?

At normal listening levels in a medium room, about 16–250 W per channel into 6 ohms. Set your own conditions and we will rank every amplifier we cover.

We check power, impedance safety and current delivery - not just watts.

Prefer to browse? Integrated amplifiers under $2,000, or every amplifier we cover.

Input Type

Model Four features type connectors.

KLH Model Four External Dimensions and Weight

KLH Model Four has external dimensions of (Height x Width x Depth) (817.9 x 330.2 x 276.9mm ).

Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base area of KLH Model Four is approximately 914.3cm2 / 141.7inch2.

Find speakers that fit your shelf or alcove →  ·  Work out where they should sit in the room →

Weight

The KLH Model Four weighs 21.32kg / 46.9lbs per piece. Here is a comparison of how Model Four's weight compares with the average, max and min weights in its class.

Weight
All Bookshelf Speakers
KLH Model Four
Min
Average
Median

Available colors

KLH Model Four is available in Black Ash.

Wall Mounting

Model Four doesn't sport any built-in mounting bracket, so you need an external structure to mount it on walls.

Recommended Accessories

Here is a list of accessories that we think you may need for the KLH Model Four.

  • Speaker Cable and Connectors
    • Speaker Cables with Banana Plugs: If you know the lenght of the cable you need, this is the easier option to connect your speakers with your amp.
    • Speaker Cables without Connectors: If you are not sure about the lenght or need longer than standard cables with plugs, choose this option.
    • Banana Connectors and Plugs: If you chose the cables without connectors option or already have some cable around, pick the banana plugs separately.
  • Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
  • Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.
  • Speaker Stands: Stands bring your bookshelf speakers to ideal height (rule of thumb is to have the tweeter level with your ear in your listening position), helps stability and acoustical isolation.

Warranty

10 years of parts warranty and 10 years of labor warranty is generally provided by the manufacturer.

KLH Model Four Alternatives in Passive Bookshelf Speakers
Model Type Sensitivity Impedance Frequency
KLH Model Three
Compare
2-way 88 dB 6 ohms 46-20k Hz
KLH Model Five
Compare
3-way 90.5 dB 6 ohms 42-20k Hz
KLH Model Seven
Compare
3-way 91 dB 4 ohms 38-20k Hz
Frequently Asked Questions about KLH Model Four

What amplifier do you need for the KLH Model Four?

The KLH Model Four is a 6-ohm speaker, which most amplifiers and receivers handle without trouble.

Is the KLH Model Four easy to drive?

The KLH Model Four has a sensitivity of 88 dB. That is about average for a home speaker, so it is neither hard nor especially easy to drive.

Does the KLH Model Four need a subwoofer?

The KLH Model Four reaches down to 46Hz (full range 46-20K Hz). That covers most music, though a subwoofer still adds the bottom octave for home theatre.

What drivers does the KLH Model Four use?

The KLH Model Four is a 3-way design using a 1" Hard-Dome tweeter, a 4" midrange and a 8" woofer.

Is the KLH Model Four sealed or ported?

The KLH Model Four uses a Sealed enclosure. A sealed box trades some output for tighter, more even bass and is the more forgiving choice close to a wall.

How big and heavy is the KLH Model Four?

The KLH Model Four weighs 21.32kg / 46.9lbs each.

How much does the KLH Model Four cost?

The KLH Model Four has a manufacturer's list price (MSRP) of $2,000.


KLH Model Four Detailed Specifications

General
BrandKLH
Full Model NameKLH Model Four
Speaker Type3-way Bookshelf
Sensitivity88 dB
Impedance6 ohms
Frequency Response46-20K Hz
Release Date2023
DRIVERS
Woofer Size8-inch
Woofer Composition
Tweeter Size1-inch
Tweeter TypeHard-Dome
Midrange Size4-inch

CONNECTIONS
PHYSICAL SPECS
Height817.9mm ( 32.2-inch)
Width330.2mm ( 13-inch)
Depth276.9mm ( 10.9-inch)
Height817.9mm ( 32.2-inch)
Weight21.32 kg (47 lbs)
Enclosure
FinishMDF/Wood Veneer
Available ColorsBlack Ash
Moisture ResistanceNo
OTHER
Handheld RemoteNo
Parts Warranty10 years
Labor Warranty10 years
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