Monthly Archives: February 2019

Philips LBB9050/05 Dual Capsule Dynamic Microphone 1970

 Philips LBB9050-05

 Philips LBB9050-05

Philips LBB9050-05

Launched in 1970 the LBB9050/05 was Philips flagship dynamic microphone, and was heralded in Philips literature as being a ‘revolutionary new design incorporating high and low frequency systems’. However, a small amount of research reveals more than a passing similarity in technical specifications between the LBB9050/05 and the popular D200 series of microphones by AKG, which had been around for several years.

Philips LBB9050-05

The mystery unravels further, and the true origins of this microphone become clear when we observe the words ‘Made in Austria’ on the packaging, the storage case, and on the microphone itself. Michael Amon, top technician at AKG for 30 years, has confirmed to me that the LBB9050/05 was indeed made by AKG for Philips in 1969.

Box for Philips LBB9050/05

 Philips LBB9050-05 Bass Capsule Ports

Picture above shows Tuchel socket, and ports for the LF capsule.

The Dual Capsule Design.

The original Austrian patent dates from 1960. The full specification appears in the English patent registered by AKG in 1965, and shown below. This makes an interesting read if you want to understand how this clever piece of technology works.

Original AKG Patent for Dual Capsule Microphones

Philips Advertising Leaflets Courtesy of Philips Company Archives.

LBB9050 microphone,

leafletLBB9050 microphone, leaflet, 1971

So What Does It Sound Like CLICK HERE for a short clip of Blues Guitar

In Conclusion

Just like its AKG cousins the D200, D202, D222 and the D224, the Philips LBB9050/05 is a serious quality professional microphone, exhibiting a wide frequency response, tight cardioid polar pattern, and no proximity effect.  Sadly, these days it is much less well known than the AKG models.  But maybe Philips is to blame? If you were to choose a completely unmemorable name for a product you really couldn’t do better than to call it the LBB9050/05!  Two minutes from now you will probably have forgotten it!


AKG D12. The Best Bass Drum Microphone In The World?

When it first appeared in 1953 the AKG D12 was presented as a high quality, general purpose musician’s microphone. Suitable for instruments and vocals. As such, it very rapidly gained popularity. (A bit like a Shure 55, but without the chrome and the stylish good looks!)

AKG Advert from the late 50’s

1950's AKG Advert for D12

With the growth of multi-track recording in the 1960’s the D12’s particular ability to handle low frequencies at high SPLs was soon acknowledged and increasingly it gravitated to bass drum duties. By the time I started recording in the mid-70’s it was the bass drum microphone of choice for most recording studios. (Certainly on this side of the Atlantic.) Apart from the D12 itself, there were a number of similar (theme and variations) microphones from AKG including the D20, D25, D30 etc. Slightly different frequency responses, shock mountings and filters.

1960's AKG D20 and D25 Advert.

In 1978 the AKG D12 was reissued as the AKG D12E and now came with an XLR socket.


AKG D12 E Technical Specifications

A couple of weeks ago I sat down to write this blog post on the AKG D12 and had intended, as usual, to illustrate with some suitable recorded examples…….. Now here’s the problem.

If I am commissioned to record a fabulous Stradivarius violin, or a superb Steinway piano, my intention (as you might expect), would be to reproduce the sound of that instrument as faithfully as possible along with the acoustics of the studio or concert hall. The same might be true for a great saxophone, a terrific trumpet or a classic guitar through a vintage amp.

However, in the world of rock’n’roll drumming things are very different!! It would appear that pretty much the last thing anyone wants to hear is the actual sound of the bass drum!

After some preliminary research I soon discovered that all the drummers I know ‘treat’ their bass drums in some way or another, ranging from bits of tape, damping rings, Moon Gel, special heads, cushions, pillows and even a duvet! Many of these bass drums also require considerable amounts of EQ whatever mic you choose …… and then it depends what sort of music you are recording. A great heavy metal bass drum sound doesn’t really work for jazz! Consequently I haven’t recorded any examples as it seemed completely pointless, and would probably demonstrate more about the drummer’s taste in soft furnishings than about the qualities of the microphone. I think that all I can say is that the AKG D12, and its close relatives, will put up with any amount of SPL and respond well to whatever EQ you throw at them!


Whether or not the D12 is / was the greatest bass drum mic in the world, who knows? Maybe? It has appeared in front of more famous bass drums than most!