2012年12月1日 · These KEF units were OK in their day, but there are much better units available today I built some huge transmission line speakers using the KEF B139, B110, coupled with …

2013年2月10日 · I have read good things about the Falcon Acoustics Kef Concerto (B139, B110 & T27) replacement of Kef's original DN12 crossover. I get the impression that Falcon …

2014年4月22日 · For Sale a pair of large floor standing Transmission Line loudspeakers from the mid 70s carefully constructed to the Hi Fi answers design by C. J. Rogers featuring a multi …

2023年10月25日 · Even the old Kef B139 and 1003 had rubber surrounds...the Kef B139 play bass so deep I had to go from the basement up to the 1st floor to hear/sense it.... Just as an …

2013年6月21日 · If you have a look at the Kef Concord from the late 1960s, the B139 seems to be discreetly concealed: Why would Kef do this? What effect would it have on the sound output? I …

2012年10月23日 · My niece having bought the DM2s, I was just interested in comparing my ancient Concertos with another equally aged but well respected speaker. It has been an …

2011年11月25日 · KEF made lots of those oval speakers, notably the B139. Bass reflex speakers are generally more efficient at low end, but in exchange for that, they can be less stable in the …

2020年3月10日 · NAD 533 turntable with a Grado E3 Thorens TD150 Mk2 White Plinth (stock) Audiolab 8000AP Audiolab 8000S (going shortly) Rotel RB1048 Rotel CD 965BX …

2022年3月31日 · They have a 3 way setup with a KEF B139 6171 bass driver. Being rated a modest 40W I was looking to upgrade the KEFs to a more recent version of the same driver.

2017年6月21日 · KEF have replaced their 'old school' engineers left over from the days of Raymond Cook their founder and now have a team of acoustic engineers most whom are in …