DPA APE50RS 4006A Acoustic Pressure Equalizer, 50 mm Ball
The Acoustic Pressure Equalizer Ball for d:dicate™ 4006A Omnidirectional Microphone is a sphere shaped Acoustic Pressure Equalizer. It comes in three sizes and can be used for the microphone or the stereo kit.
Depending on the size of the Acoustic Pressure Equalizer Ball your microphone will impact your recording differently. The Acoustic Pressure Equalizer Ball comes in three sizes; 30mm, 40mm and 50mm.
APE30RS - The Acoustic Pressure Equalizer, 30 mm Ball
The APE30RS, a Ø30 mm sphere, gives a mild modification of your microphone's on-axis and off-axis frequency responses and a slight change in the direction-to-reverberation ratio. This will give your recordings greater presence, nearness and clarity on-axis (especially around 4 kHz).
An on-axis boost, between 2 kHz and 8 kHz, and high-frequency roll-off off-axis, will sometimes help you capture the subtle audible details of both musical instruments and voices.
APE40RS - The Acoustic Pressure Equalizer, 40 mm Ball
The APE40RS, a Ø40 mm sphere, offers a more noticeable on-axis boost between 2 kHz and 8 kHz. It also offers stronger off-axis attenuation than the Ø30 mm version. This gives a marked increase in the directivity of your recordings (at 4 kHz, the front-to-back sensitivity ratio is 8 dB). It also decreases the effects of reverberation and off-axis sources.
When using Acoustic Pressure Equalizer, 40 mm Ball, you can modify the spectral characteristic of a source by simply altering the angle of incidence to give a frequency boost, a flat response or attenuation.
APE50RS - The Acoustic Pressure Equalizer, 50 mm Ball
The APE50RS, a Ø50 mm sphere, offers a stronger on-axis boost and off-axis attenuation than the smaller APEs (Ø40 mm and Ø30 mm). Its larger dimensions accentuate the on-axis boost at lower frequencies and allow off-axis sources to be strongly attenuated above 1 kHz. This will give your recordings a more intense sensation of source clarity and presence and a marked increase in brightness. It will also extend the effective reach of your microphones.
You will also find that the APE50RS is particular useful for making recordings under reverberant conditions.
These accessories substitutes the former L30B, L40B and L50B, suitable for d:dicate™ 4003 and d:dicate™ 4006A and their stereo kits. The L30B, L40B and L50B cannot be used with the modular d:dicate Series but the APE30RS, APE40RS and APE50RS is backwards compatible.
More on acoustic modification
The Acoustic Pressure Equalizers – APEs – are passive acoustic processors functioning as both spatial and spectral modifiers. They use surface diffractions to modify the sound field near the microphone diaphragm. This technique is only possible on omnidirectional pressure microphones.
Two primary changes occur when using APEs:
1. An upper-midrange/high frequency boost (without changing the low end). This is due to the pressure build-up at certain frequencies depending on the element’s size.
2. More directionality at higher frequencies (focus).
A presence (upper-midrange) lift is often desirable in rhythmical genres, to make a voice or an instrument cut through a mix or simply to make it more intelligible or well defined. For symphonic music, the frequency response of certain legendary vintage types of microphones can be obtained using an APE. However, you will achieve a much higher degree of naturalness and detail when using a precision-handcrafted d:dicate™ 4006A Omnidirectional Microphone.
Pro Audio Systems have teamed up with PayPal Credit to offer you interest free finance over 4 months on purchases over £99.
A 0% interest offer you can use again and again.
At Pro Audio Systems, great service is always part of the deal. If you’re lucky enough to live close enough to visit us here in Bradford then we’d love to see you in person but if you’re a bit further away we never let the distance stand in the way of us doing what we do best!
Not only do we stock a fantastic range of microphones, loudspeakers and amplifiers, we provide unrivalled customer care, advice and technical assistance to our customers. If you need some advice on any of our products or services – we’re here to help. If you need something quickly – we’re here to help. If you need hard-to-find specialist items, custom-made pieces, pointers on how to connect this to that – we’re here to help. We work really hard to be the kind of people we would like to buy from, and this level of service is often hard to find via impersonal and anonymous e:commerce sites.
One of our sales team will take personal responsibility for your order, from original contact to dispatch. They will help to spec the right equipment, process the order, where necessary place and chase orders with suppliers, and oversee the dispatch of goods. If you have a question at any time, pre or post sale, you can reach your dedicated contact who will be happy to help. We’ll also contact you by email or telephone, as many times as necessary, to ensure that you are kept informed every step of the way.
With specialists in PA Systems, Pro Audio & Live Sound equipment on hand to answer calls and emails, you're in the best possible hands. Contact us now to discuss your requirements or to request a quotation. Purchase orders can be sent directly to firstname.lastname@example.org