Kef Kube equalizer


Audio junkies: Can anyone explain the function of the Kef Kube equalizer, and tell me whether there is a viable substitute? I just bought a used pair of Kef Reference 103/4 speakers. I need to repair the dual-woofer surrounds, so I haven't heard them yet. I have read glowing reviews,however, but most recommend using the Kef Kube 200 active equalizer to bring out the bass response (without colouration, I'm told). I have submitted an Audiogon want-ad for a Kube 200, but I'm wondering if there is a substitute in the event I can't find one. Are these things simply graphic equalizers? Also, on the diagrams I've seen, the unit appears to just have RCA jacks. If that is true, can you even use one with a mid/high-end A/V receiver? Thanks. -KlipschKing
klipschking
Thanks guys. My unit is a Pioneer Elite A/V receiver, and it has both a tape monitor in/out, as well as a pre-amp out. Im not sure about a amp in connection; I'll pull my owner's manual. Pardon my ignorance, but how would using the tape in/out work?? I would play the receiver in the tape mon. mode? I really expected to have 5-way binding-post type connections for right and left channel in/out, but looks like I don't understand the process well enough.
Hi everyone

Would an equalizer from another company work in place of KEF K-UBE or KUBE? I was able to acquire a nice pair of KEF 103.3 speakers but the original owner can't find the KUBE EQ that went along with it. I tried listening and the bass sounded thin. Any recommendations on any KUBE replacements would be much appreciated. Any other solutions around this are more than welcome as well and appreciated.

Thanks
Years ago, JPS Labs made after market eq's for speakers such as yours, that came with oem bass boost eq's called golden flutes. Another dealer (in Denver?)was making similar products for B&W speakers and maybe others, I think they called them Muaghn boxes or something to that effect. Perhaps you could contact KEF or keep your eyes open for used originals or the aftermarket replacements mentioned above. Without them, your speakers are not able to do all that they are capable of.
Get a Behringer DEQ2496 equalizer. It will automatically make your KEF speakers flat, so you won't need to figure out what the original KEF equalizer did.
A room correction device is an excellent idea. Typically the oem bass boost eq's provided bass boost to compensate for the natural roll off of the enclosure type, e.g. infinite baffle 12dB, reflex loaded 24dB. The advantage of using such an eq, is that it allows the manufacturer to use a smaller loud speaker to get the same bass output of a larger loud speaker. Advantages: (i)use less expensive smaller drivers, smaller drivers are more linear and typically have less energy storage,(ii) smaller drivers permit the use of smaller cabinets, smaller cabinets have better marketing potential, use less materials, need less bracing, weight less, cost less to ship and store.All of which reduce costs. Disadvantages, (i) puts more burden on the amplifier, so amplifier power needs to be greater/more robust and that usually means more expense. (ii) depending on how it's inserted in a given system, requires at least 1 and possibly 2 extra sets of interconnects (iii) Many audiophiles object to any extra circuitry in the audio signal, and eq's (rightly or wrongly) are particularly viewed with suspicion, (iv) it's been my experience that there are some limitations to ultimate volume levels compared to larger (usually much larger) speakers that don't use such a device that are capable of the same bass output.
As the bass roll off is based upon what would happen in an anechoic environment, it doesn't correct for the varying bass responses typically experienced by most real world users. The digital room correction devices that are now available and weren't commercially available when most of these speakers were being devised can now boost, not boost, and/or even attenuate for ones actual room. As these speakers were originally built to meet the demands of extra boost, they may be better equipped to to work with these devices than speakers that aren't so designed.
I'm surprised that with the current digital technology available and the increased use of surround sound, where having many large speakers could become problematic, that this concept hasn't found much new life.