kramer WM-8P Two-way Wall Mounted Passive Speaker User Manual

WM-8P Two-way Wall Mounted Passive Speaker

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Specifications

• Model: WM-8P
• Type: Two-way Wall Mounted Passive Speaker
• Part Number: 2900-301855 Rev 1
• Website: www.kramerav.com

Product Information

Overview

The Kramer WM-8P Speaker is a high-quality wall mounted passive
speaker designed for commercial audio installations. It is suitable
for both 8 and 70V/100V systems, making it ideal for various
applications including meeting rooms, auditoriums, background
music, paging, and distributed sound applications.

Models

Available Models:

• WM-8P (W) (SINGLE) – 8 Two-way Wall Mounted Passive Speaker,
  White
• WM-8P (B) (SINGLE) – 8 Two-way Wall Mounted Passive Speaker,
  Black
• WM-8P-(W)-(SINGLE)-AA – TAA compliant 8 Two-way Wall Mounted
  Passive Speaker, White
• WM-8P-(B)-(SINGLE)-AA – TAA compliant 8 Two-way Wall Mounted
  Passive Speaker, Black

Typical Applications

The WM-8P Speaker is commonly used in meeting rooms,
auditoriums, background music settings, paging systems, and
distributed sound applications.

Product Usage Instructions

Installation Guide

Achieving Best Performance

• Choosing the Best Location:
• Plan the location based on listening area, ceiling height, and
  speaker dispersion angle.
• Ensure the wall can support the speaker weight.
• Check for obstructions like electrical piping or AC ducts.
• Angle the speaker downward towards the listener for better
  sound distribution.
• Avoid placing speakers too close to the ceiling or reflective
  surfaces.
• Unpacking:
• Remove speaker and accessories from packaging.
• Inspect for damage before proceeding.
• Dispose of packaging material properly.
• Mounting the Speaker:
• Install EasyMount bracket on the wall.
• Mount speaker onto the bracket using supplied screws.
• Adjust speaker angle for optimal sound distribution.

Your passive speaker features both low impedance (8) and high
impedance (70V/100V) modes.

In low impedance setup, the speaker is directly connected to a
low-impedance amplifier (4, 8, or 16 ohms). This method is suitable
for small to medium-sized rooms where the amplifier is near the
speakers.

FAQ

Q: What are the typical applications of the WM-8P Speaker?

A: The speaker is commonly used in meeting rooms, auditoriums,
background music settings, paging systems, and distributed sound
applications.

Q: How do I achieve the best performance with the WM-8P
Speaker?

A: Choose a suitable location, ensure proper wall mounting,
angle the speaker towards listeners, avoid obstructions and
reflective surfaces.

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USER MANUAL
MODEL – WM-8P
Two-way Wall Mounted Passive Speaker

P/N: 2900-301855 Rev 1

www.kramerav.com

Contents
Introduction Safety First! Recycling Kramer Products Included in the box
Overview Models Typical Applications
Installation Guide Achieving Best Performance Choosing the Best Location Unpacking Mounting the Speaker Wiring the Speakers ­ best practice Defining and calculating speaker’s sound pressure levels (SPL)
Technical Specifications

Kramer Electronics Ltd.
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WM-8P ­ Contents

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Kramer Electronics Ltd.

Introduction
Thank you for purchasing the Kramer WM-8P Speaker. This high-quality wall mounted passive speaker delivers premium sound performance for commercial audio installations. Designed for both 8 and 70V/100V systems, it is ideal for speech applications such as meeting rooms and auditoriums as well as for background music applications, paging, and distributed sound applications.
Please read this manual carefully before installation to ensure optimal performance and safety.
Safety First!
· Installations must be performed by a qualified professional following local regulations. · Ensure that the wall or the surface on which the speaker is installed can support the weight of
the speaker. · Use only the provided EasyMount mounting bracket or a good quality 75mm VESA mount. · This speaker is intended for indoor installations, do not expose the speaker to excessive
moisture or extreme temperatures. · Always power off the amplifier before changing transformer tap settings or connecting the
cable to the speaker. · Always check amplifier compatibility before connecting (impedance setup, power ratings). · Do not open the speaker housing, as this may affect the sound quality and will void the
warranty.
Recycling Kramer Products
The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC aims to reduce the amount of WEEE sent for disposal to landfill or incineration by requiring it to be collected and recycled. To comply with the WEEE Directive, Kramer Electronics has made arrangements with the European Advanced Recycling Network (EARN) and will cover any costs of treatment, recycling and recovery of waste Kramer Electronics branded equipment on arrival at the EARN facility. For details of Kramer’s recycling arrangements in your particular country go to our recycling pages at www.kramerav.com/il/quality/environment.
Included in the box
· WM-8P speaker (single unit) · EasyMount mounting bracket · 2 bracket screws · 4-pin pluggable Euroblock connector, 28-12AWG · L-Shaped Allen key (M6)

WM-8P ­ Introduction

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Kramer Electronics Ltd.
Overview
The WM-8P is a high-end 8″ wall mounted passive speaker featuring exceptional sound, optimized for conferencing and background music. The speaker supports both 8 low impedance as well as several 70V/100V high impedance modes. The speaker is supplied with Kramer’s EasyMount mounting bracket for horizontal and vertical installations as well as for installation in corners, in addition the speaker has standard 75mm VESA mount threads for additional installation options. The speaker is available in both black & white colors.

Figure 1: WM-8P Speakers # Feature
1 Speaker 2 EasyMount mounting bracket 3 Bracket screws 4 Terminal connector 5 Selector tap
Key features · Exceptional sound performance · Low-impedance (8) / high-impedance (70V/100V) · Power handling: 60 W continuous / 80 W peak · Sensitivity (1W@1m, free field): 90dB SPL · Maximum SPL (@1m): Continuous 108dB SPL / Peak 109dB SPL · UL1480A certified · TAA compliant option · Eco-friendly mono-material packaging

WM-8P ­ Overview

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Models

Kramer Electronics Ltd.

Model WM-8P (W) (SINGLE)

Part Number Description 60-000133 8″ Two-way Wall Mounted Passive Speaker, white

WM-8P (B) (SINGLE)

60-000134 8″ Two-way Wall Mounted Passive Speaker, Black

WM-8P-(W)-(SINGLE)-AA WM-8P-(B)-(SINGLE)-AA

8″ Two-way Wall Mounted Passive Speaker, white 60-00013311
TAA compliant 8″ Two-way Wall Mounted Passive Speaker, Black 60-00013411 TAA compliant

Typical Applications
WM-8P is ideal for the following typical applications: · Auditoriums & large conferencing & meeting rooms · Mixed Background music and paging applications (malls, train stations, airports) · Retail, restaurants, gym, sports bar

WM-8P ­ Overview

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Installation Guide

Kramer Electronics Ltd.

Achieving Best Performance
To achieve the best performance:
· Use only good quality speaker cables (we recommend Kramer high-performance, BC-2S cables and for plenum installations we recommend the low smoke halogen free cables, BC2Sxx/LSHF).
· Do not secure the cables in tight bundles or roll the slack into tight coils
· Avoid interference from neighboring electrical appliances that may adversely influence signal quality

Choosing the Best Location
Plan the location of the speakers based on the designated listening area, the height of the ceiling and dispersion angle of the speakers.
Wall Type Suitability: Ensure the wall is appropriate for mounting the speaker weight.
Obstruction Check: Verify the mounting location is free of obstructions like electrical piping, AC ducts, or water lines.
Recommended orientation – horizontal installation: Angle the speaker slightly downward towards the listener for better sound distribution.
Ceiling Clearance: Avoid placing speakers too close to the ceiling to prevent sound distortion.
Avoid Reflective Surfaces: Minimize placement near glass, tiles, or other reflective materials to reduce unwanted echo or reverb.

Unpacking
Carefully remove the speaker and mounting accessories from the packaging. Inspect all components for damage before proceeding. Dispose of the packaging materials according to regulations.

Mounting the Speaker
Prepare the speaker cable ­ the recommended location is behind the central hole in the EasyMount bracket.
Install the EasyMount bracket in the designated location on the wall. Mount the speaker to the EasyMount bracket, secure it with the two screws that are supplied
with the speaker. Adjust the required angle of the speaker and tighten the screws with the L-shaped Alan Key
(supplied with the speaker).

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Kramer Electronics Ltd.
Wiring the Speakers ­ best practice
Your passive speaker features both low impedance (8) and high impedance (70V/100V) modes. Understanding the difference is essential for safe installation and optimal performance.
Low Impedance Installation (8 Ohms)
Description:
In low impedance setup the speaker is connected directly to a low-impedance amplifier (typically rated at 4, 8, or 16). This method is commonly used in small to medium-sized rooms where the amplifier is near the speakers, such as meeting rooms, boardrooms, or home studios.
Note: In low impedance mode the WM-8P has an impedance of 8. Key Features:
· Higher sound quality due to full-range signal. · Limited cable runs (usually less than 20 meters). · One amplifier channel per speaker or a pair of speakers.
High Impedance Installation (70V / 100V)
Description:
This method uses a transformer to distribute audio over long distances using thin speaker cables. Ideal for large areas or multi-speaker installations such as retail stores, restaurants, schools, or outdoor spaces. Key Features:
· Supports multiple speakers on a single amplifier channel, installed in parallel. · Long cable runs (up to hundreds of meters) without significant loss.
Note: In high impedance mode the WM-8P supports the following power ratings: o at 100V ­ 60W / 30W / 15W o at 70V ­ 60W / 30W / 15W / 7.5W

WM-8P ­ Installation Guide

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Kramer Electronics Ltd.
When to Choose a Low Impedance 8 Setup
· When Sound Quality Is Top Priority · 8 setups deliver direct, full-bandwidth signal from the amplifier to the speaker no transformer losses. · Ideal for: o Boardrooms and conference rooms o Auditoriums or lecture halls o Music-focused zones (bars, studios, luxury retail)
· When You Have a Small Speaker Count · A typical low-impedance amp channel supports 1 to 2 speakers per channel, maybe 4 if impedance allows. · Perfect if: o You’re wiring 1­4 speakers to a single amplifier channel. o You don’t need multiple zones from one line.
· When Cable Runs Are Short · Ideal for speaker cables under 30­50 meters (100-164 ft) · No need to compensate for long-distance power loss with transformers.
· When You Want to Use Subwoofers or High-Power Speakers · Low-impedance amps can directly deliver the necessary wattage.
· When You Need High SPL or Full-Range Performance · Transformer-based 70V/100V systems often cut low frequencies to protect transformers and reduce core size. · For full-range systems where bass and clarity matter – 8 wins.

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Kramer Electronics Ltd.
When to Use high impedance 70V/100V Line Systems
Use a 70V (North America) or 100V (ROW) system when:
· Long Cable Runs (Typically >50­60m)
In low-impedance systems, long runs require very thick cables to avoid losses. Highimpedance systems reduce current, allowing the use of thinner and longer cables.
· Multiple Speakers Across Large Areas Ideal for distributed audio (e.g., malls, schools, campuses, offices). Each speaker has a tap setting to draw only the needed wattage.
· Simpler Infrastructure & Scalability One amplifier can drive dozens of speakers in parallel with no complex impedance matching. Makes zoning and volume control easier with transformers.

Note: In the U.S., 70V audio systems are standard because they stay just under the 100V peak limit defined by safety regulations, avoiding high-voltage installation requirements. In most other countries, 100V systems are common because local electrical standards allow higher voltages in low-current applications. The key
advantage of 100V systems is that they deliver more power over longer distances with thinner cables, making them ideal for large-scale distributed audio installations.

WM-8P ­ Installation Guide

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Kramer Electronics Ltd.
Designing a low impedance system
Impedance (measured in ohms, ) tells us how much resistance a speaker gives to the amplifier. When connecting multiple speakers to one amplifier channel, the total impedance depends on how you wire them: in series or in parallel.
Series (In Line) Connection
In a series connection, you connect the positive of one speaker to the negative of the next. The total impedance is the sum of all speaker impedances.
Formula: Total Impedance (Z) = Z + Z + … + Zn
Example: Two 8 speakers in series: 8 + 8 = 16 total impedance
Note: Use series wiring if your amplifier supports higher impedance or you want to reduce the power output slightly.
Parallel Connection
In a parallel connection, all speaker positives go to the amp’s positive, and all negatives to the amp’s negative. The total impedance decreases and is calculated using:
Formula (for 2 speakers): 1 / Z_total = 1 / Z + 1 / Z , Then flip the result.
Example: Two 8 speakers in parallel: 1 / Z = 1/8 + 1/8 = 2/8 Z = 4 total impedance
Note: Use parallel wiring if your amplifier supports a 4 load – this gives more power but also puts more strain on the amplifier.

Recommended cable gage based on impedance and maximum distance:

Setup Distance

Single 8 Speaker

2 x 8 in Parallel (4) 2 x 8 in Series (16)

Up to 10m / 33ft

16 AWG / 1.31mm2

14 AWG / 2.08mm2

16 AWG / 1.31mm2

Up to 20m / 66

14 AWG / 2.08mm2

12 AWG / 3.31mm2

16 AWG / 1.31mm2

Up to 30m / 100ft

12 AWG / 3.31mm2

10 AWG / 5.26mm2

14 AWG / 2.08mm2

Up to 40m / 132ft

10 AWG / 5.26mm2

10 AWG / 5.26mm2

12 AWG / 3.31mm2

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Kramer Electronics Ltd.

Designing a high impedance system
Choosing the correct speaker cable is essential for reliable performance and long-term system efficiency, especially in 70V/100V high-impedance systems where cables can span over 100 meters. Key Design Steps
1. Calculate Total Speaker Load – Add the wattage of all speakers on each cable run
Example: 4 × 30W = 120W total load
2. Measure Cable Run Length – Measure the full round-trip length (amplifier to last speaker and back).
3. Select Cable Size (Gauge) – Use the following table to choose your cable size for a maximum 0.5dB loss (11%):

Cable Gauge

Total Load

16 AWG (1.31mm2)

30W 180m / 590ft

14 AWG (2.08mm2)

290m / 950ft

12 AWG (3.31mm2)

460m / 1500ft

10 AWG (5.26mm2)

730m / 2400ft

90W 60m / 200ft 96m / 315ft 153m / 500ft 243m / 795ft

150W 36m / 118ft 58m / 190ft 92m / 300ft 146m / 480ft

300W 18m / 60ft 29m / 95ft 46m / 150ft 73m / 240ft

Note: These are maximum total distances for the entire run, based on copper cable and a 5% voltage drop.

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Kramer Electronics Ltd.
Setting up speaker power handling mode
Your speaker includes a rotary transformer tap for setting the power handling mode. To set the speaker to 8 low impedances, set the transformer tap so the 2 arrows will point at the 8 markings as shown in the picture:
To set the speaker to a high impedance mode set the transformer tap to the desired power rating as shown in the picture. In this example, if the speaker will be connected to a 100V line its power rating will be 60W and if connected to a 70V line its power rating will 30W.

Always power off the amplifier before changing transformer tap settings or connecting the terminal connector to the speaker
Always check amplifier compatibility before connecting (impedance setup, power ratings)
Verify that the polarity of the wiring at the amplifier side and at all the speaker is correct, we recommend using color coding: red for + and black for -.

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Parallel wiring and daisy chain installations

Kramer Electronics Ltd.

Figure 2 – Parallel Wiring

Figure 3 -Parallel Wiring – Separate Cables

Figure 4 – Daisy Chain Wiring

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Kramer Electronics Ltd.
Defining and calculating speaker’s sound pressure levels (SPL)
The recommended SPL (Sound Pressure Level) for different applications depends on the purpose of the audio (e.g., speech, background music, or announcements) and the ambient noise level of the environment.
Here’s a practical reference chart for commonly encountered commercial spaces:

Application

Recommended SPL

Purpose

Notes

Meeting Rooms Classrooms Cafeterias Restaurants Retail Stores Offices (Open Space) Lobbies & Corridors Factories / Warehouses Outdoor Areas Auditoriums

65­70 dB SPL Speech clarity

Keep just above ambient noise; avoid listener fatigue

65­75 dB SPL Speech + AV audio

Aim for clear intelligibility at the back of the room

75­80 dB SPL

Announcements, ambient music

Slightly louder to overcome crowd noise

70­75 dB SPL

Background music, paging

Should not interfere with conversation

70­78 dB SPL Background music, ads

Volume can vary by vibe/brand identity

60­68 dB SPL Paging, low-level BGM

Soft enough to not distract, but audible

68­72 dB SPL

Announcements, background music

Balanced to avoid echo and blending with ambient noise

85­90 dB SPL 75­85 dB SPL 80­95 dB SPL

Announcements, alarms Paging, music Speech, music, live events

Must exceed ambient noise for clarity and safety
Depends heavily on environmental noise and coverage area
High dynamic range required; use zoning and delay speakers

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Kramer Electronics Ltd.
Calculating speaker’s sound pressure level (SPL)
To calculate the Sound Pressure Level (SPL) at a given distance from a speaker, based on its sensitivity rating and input power, you can use the following formula:
SPLX = SPLref + 10 log10 (P) ­ 20 log10 (d)
Where: · SPLX = Sound Pressure Level at distance x (in dB SPL) · SPLref = Speaker sensitivity (usually given as SPL at 1W @ 1 meter) · P = Input power in watts · d = Distance from the speaker in meters
Example: With a WM-8P with 90dB sensitivity, driven by a 60W amplifier, the sound pressure level 3 meters from the speaker will be:
SPL3m = 90 + 10 log10 (60) ­ 20 log10 (3) = 98 dB SPL

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Technical Specifications

Kramer Electronics Ltd.

Model

WM-8P

Audio Specifications Drivers
LF Driver
HF Driver Frequency Characteristics Frequency Range (-10dB) Frequency Response (±3dB) Power Handling Power Handling Impedance
Multi tap transformer settings
Acoustical parameters Sensitivity (1W@1m) Maximum continuous SPL (dB) @1m Dispersion Mechanical specifications Installation Type
Mounting
Connectors Weight per single speaker Dimensions Dimensions w bracket Dimensions w/o bracket Shipping
Packaging
Packaging Materials
Shipping Dimensions (single unit) Shipping Dimensions (master box) Materials Grill Baffle Back Enclosure / Cabinet Bracket Environmental Operating Temperature: Storage Temperature: Humidity Regulatory Compliance Safety Environmental

200 mm (8″) with polypropylene cone, butyl rubber surround, copper-clad coil, vented aluminum former 25 mm (1″) black silk dome with dampening, ferrofluid- cooled
60Hz-20kHz 79Hz-20kHz
60W RMS continues 80W peak 8 70V: 60W / 30W / 15W / 7.5W 100V: 60W / 30W / 15W
90dB Continuous: 108dB SPL / Peak: 109dB SPL 124o (1Khz to 4Khz)
Surface mount, on wall, horizontal, vertical & corners EasyMount bracket included in the box + standard 75mm VESA mount threads 4­pin pluggable Euroblock connector, 28­12AWG 5.1kg (11.3lbs)
250mm x 306mm x 390mm / 9.9″ x 12.1″ x 15.4″ 250mm x 222mm x 390mm / 9.9″ x 8.8″ x 15.4″
Packed as a single speaker per box. 2 single speaker boxes packed in a master box Eco-friendly mono-material packaging made entirely from recyclable carton, designed for durability and ease of recycling 603mm x 423mm x 470mm / 23.74″ x 16.66″ x 18.51″ 670mm x 430mm x 498mm / 26.4″ x 17″ x 19.6″
Powder Coated Steel, removable logo V-0 Flame Retardant V-0 Flame Retardant Aluminium
-5°C to +50°C (23°F to 122°F) -10°C to +55°C (14°F to 131°F) 30% to 85%, RHL non-condensing
UL1480A, CE, UKCA RoHS, REACH, WEEE

WM-8P ­ Technical Specifications

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SPL dB (@1m / 1W)

Frequency Response
WM-8P

Kramer Electronics Ltd.

Frequency (Hz) Impedance Response

WM-8P

Frequency (Hz)

Impedance ()

WM-8P ­ Technical Specifications

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Kramer Electronics Ltd.

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WM-8P ­ Technical Specifications

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For the latest information on our products and a list of Kramer distributors, visit our website where updates to this user manual may be found. We welcome your questions, comments, and feedback
www.kramerav.com support@kramerav.com

Documents / Resources

kramer WM-8P Two-way Wall Mounted Passive Speaker [pdf] User Manual WM-8P, WM-8P Two-way Wall Mounted Passive Speaker, Two-way Wall Mounted Passive Speaker, Wall Mounted Passive Speaker, Mounted Passive Speaker, Passive Speaker, Speaker

References

• User Manual