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RBH Sound WM-24, WM-30, FM-45 M Series Loudspeaker System Review

by July 16, 2007
  • Product Name: RBH Sound WM-24, WM-30, FM-45 M Series Loudspeaker System
  • Manufacturer: RBH Sound
  • Performance Rating: StarStarStarStarhalf-star
  • Value Rating: StarStarStarStar
  • Review Date: July 16, 2007 20:00
  • MSRP: $999/pair (WM-24); $1,199pair (WM-30); $1999/pair (FM-45)
  • Buy Now

RBH Sound WM-24 & WM-30
Primary Use: On-wall LCR
System Type: 2-way, Sealed
Frequency Response: 50Hz — 20kHz ± 3dB (WM-24)
                                47Hz — 20kHz ± 3dB (WM-30)
Sensitivity: 90dB (2.83 Volts @ 1 Meter)
Recommended Power: 75-120 Watts
Drive Units: (2) 4” active aluminum cone woofers;
                  (2) 4” passive aluminum cone woofers;
                  (1) 1” silk dome tweeter
Crossover Frequency: 3000 Hz
Crossover Slope: 12dB/Octave
Nominal Impedance: 6 Ohms
Color: Hairline brushed black or brushed aluminum
Grille: Black or silver cloth
Video Shielding: No
Dimensions: 7 1/8” W x 24” H x 3 3/4” D (WM-24)
                   7 1/8” W x 30” H x 3 3/4” D (WM-30)
Weight: 9.5 Lbs./unit (WM-24)
            11.0 Lbs./unit (WM-30)
Warranty: 5 Years

RBH Sound FM-45
Primary Use: Floor standing
System Type: 3-way, Vented
Frequency Response: 40Hz — 20kHz ± 3dB
Sensitivity: 89dB (2.83 Volts @ 1 Meter)
Recommended Power: 75-250 Watts
Drive Units: (2) 8” active aluminum cone woofers;
                  (2) 4” active aluminum cone midrange drivers;
                  (1) 1” silk dome tweeter
Crossover Frequency: 100 Hz, 3000 Hz
Crossover Slope: Asymmetrical 6-18dB/Octave
Nominal Impedance: 8 Ohms
Color: Brushed aluminum/Black
Grille: Black or silver cloth
Video Shielding: No
Dimensions: 7 1/8” W x 45” H x 16 1/4” D
Weight: 42.0 Lbs./unit
Warranty: 5 Years

Pros

  • Very stable imaging
  • Truly timber matched design
  • Well constructed
  • FM-45 is biampable

Cons

  • Limited choice of finishes
  • WM-24 & WM-30: Banana plugs difficult to access

Introduction

The M Series loudspeaker from RBH Sound should be on your list of products to audition. The system as a whole works very well together and blends seamlessly thanks to its excellent timber matching and system synergy.

Confused about what AV Gear to buy or how to set it up? Join our Exclusive Audioholics E-Book Membership Program!

About the author:

Mark's audio career, began in 1981 when he designed his first loudspeaker system for a client who had grown disenchanted with the off-the-shelf products then populating local audio emporiums. Since then, he has designed over 100 systems, now found in homes, studios, theaters and dance clubs in north America & Asia. Mark has done detailed analysis and reviews and tech articles related to loudspeakers and subwoofers for Audioholics.

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Recent Forum Posts:

AcuDefTechGuy posts on January 14, 2019 12:51
GusTheBusJohnson, post: 1291949, member: 87055
my velodyne has an amp on the back of it. Would I be able to use that?

No you will not be able to use the built-in Velodyne amp to power the woofers in your RBH towers.

You would need to use an EXTERNAL amp.
GusTheBusJohnson posts on January 11, 2019 15:59
So I'm all about budget set ups. I just got my center which is a Bohlender Graebener z5 and I also got 2 z7 towers and a velodyne dls 3750R sub. I moved the FM-45s to my rear LR channels, I was able to get 1000 ft of 12awg monoprice speaker wire for 100$ (I'm all about good deals.) Now i actually do want more control of the woofers and my velodyne has an amp on the back of it. Would I be able to use that?
AcuDefTechGuy posts on January 08, 2019 15:34
GusTheBusJohnson, post: 1291434, member: 87055
Thanks so much for that response it helped me know i had decent speakers. Unfortunately I just had a few more concerns come up. In the OP he stated he used 10 gauge wire and bi amped the fm45s. How important is it i do that? I've read mixed things about wire. One being only the distance matters, another the speaker does too. I appreciate you taking your time to respond and going over spefecics for these speakers. Can I really just use lamp wire? If theres anything I can do to give you points for a great answer please let me know. Cheers, Have a good day

It's not important to use 10 gauge wires or to bi-amp.

12 gauge or even 14 gauge is fine. I personally wouldn't use smaller wires - or lamp wires. You can get very inexpensive good speaker wires from Amazon these days.

Now if you want to have more control of the Woofers/Bass in your towers, you could bi-amp using a separate subwoofer amp - output the LFE from the AVR to the subwoofer amp, then connect the subwoofer amp to the bass speaker terminals (after removing the jumpers that connect the bass and the treble/mid). But you don't have to.
GusTheBusJohnson posts on January 08, 2019 14:54
AcuDefTechGuy, post: 1290367, member: 26997
As long as everything is in good condition, they should sound as good as many new speakers today.
Thanks so much for that response it helped me know i had decent speakers. Unfortunately I just had a few more concerns come up. In the OP he stated he used 10 gauge wire and bi amped the fm45s. How important is it i do that? I've read mixed things about wire. One being only the distance matters, another the speaker does too. I appreciate you taking your time to respond and going over spefecics for these speakers. Can I really just use lamp wire? If theres anything I can do to give you points for a great answer please let me know. Cheers, Have a good day
AcuDefTechGuy posts on January 01, 2019 19:46
As long as everything is in good condition, they should sound as good as many new speakers today.
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