Reviewer Bruno Goh Luse
Experience 3 years
Email bruno_luse@hotmail.com
Review date August 05 2003
Manufacturer Acme
Model Low B-4
Price US$695.00
Item owned for 1-2 years

Dimensions 26.5"H x 23"W x 16.5"D
Weight 78 lbs. / 35.4 Kg
Power 700 Watts RMS continuous
Speakers Four custom Eminence 10" woofers, one 5" midrange, one 1" Audax twe
eter
Ohms 4 ohms (also available in 8 ohms)
Other Powder coated steel grille, steel edge protectors, plastic corner bump
ers, black carpet covering, bar handles. Comes with 1/4", bananna and speakon
connector jacks. Rear attenuators for both midrange and tweeter, two rear port
s.

I purchased this cab because I wanted the fidelity offered by my Low B-1 cabinet in an enclosure capable of more volume. And this is something that the Low B4 does very very well, PROVIDED you give it enough power to do the job. Much has been said and written about how much power these cabs need in order to sound their best, and this is not an exaggeration: when I first purchased the B4 I powered it with a Crown CE-1000 in bridge mode - 1,100 watts into 4 ohms. Now I use a Lap Gruppen LAB1000, which gives 1,300 watts into 4 ohms! I did consult with Andy Lewis, the gentleman who makes these cabinets, before chosing an amplifier, and he said, "Get the bigger amp, and just be careful!"

Given enough power, this cab is a formidable power-house: everything you play will be reproduced clearly and cleanly with amazing articulation and fullness, in particular the lower register of the bass guitar where it often so dificult to get accurately reproduced fundamentals. As with any 4x10 there is a certain amount of comb-filtering, which makes the cab slightly less hi-fi than the Low B1, but for live use it is not something to worry about. The cab does handle open low B incredibly well, although as Andy very honestly points out in his specs, the cab is not flat to 31hz, but is actually 6dB down at that point, so you will hear some loss of volume, although the sound remains tight and focussed, without any chuffing or flutter. Transient response is excellent - fingerstyle 'makes you wanna funk' slap bass explodes out of the enclosure. Once again though, all of this only happens given sufficient amplifier power - I would take 700 watts RMS as a bare minimum, remember that is the cab's continuous and not its programme rating, which is probably around 1000 watts or so - please note this is my estimation and not the official figure.

Another thing to note: this cab may well get you in trouble with the soundman!!! Andy indicates that the effect of the four custom-built Eminence drivers working together is very much like an 18" cone, and he is right - the waveform only really develops at a certain distance from the cabinet, and the end result is that the Low B4 is much louder out in the audience than right next to it, where you only hear a small proportion of the total sound it is producing. I have been told more than once to turn down when I thought my stage volume was about right, which can be frustrating. However, that is exactly what this cabinet is designed to do, and is not an indication of inferior design or construction. As a result, I now only use it when playing though a PA which does not have subs, or whenever I am required to 'play to the room' as opposed to just the stage.

All in all this is an excellent cab if you need something that can go both LOW and LOUD, and are willing to provide it with enough power to do its job. It will cut through the loudest of guitar amps with punch and authority, and rumble the audience to boot. At the same time, it's need for power and extremely long throw means it is not suitable for certain applications.


Construction 100%
(A standard other manufacturers should aspire to)
Clarity 90%
(The least hi-fi of the Acme range, but still outstanding)
Volume 95%
(Rocks the house, but can be hard to hear up close.)
Portability 85%
(Very good for a 4x10)
Customer Service 90%
(Andy answers all his email himself)
Value 95%
(The cab is great value but remember you may need to buy a new amp as well!)
Overall 85%
(Excels at volume, punch and projection but would not be an ideal all-purpose
enclosure)

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