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Real Sound Processor RSP-AZ9EX

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Real Sound Processor  RSP-AZ9EX
Real Sound Processor RSP-AZ9EX


 The sound will be more clear and natural throughout entire range with RSP-AZ9EX.

You will recognize once you listen. The sound will be more clear and natural throughout entire range with RSP-AZ9EX. You could feel and experience more realistic sound with a full of musicality. In a word, you could be convinced that the RSP-AZ9EX brings out fully potential of your audio system. RSP-AZ9EX is not only an audio-accessory but also a real audio-gear for improving the sound quality of your system dramatically.

Actual effects of RSP-AZ9EX

RSP-AZ9EX improves localization for mid-high frequency. In addition,RSP-AZ9EX improves mid-high freshness. Especially, there is a beautiful effect on the sound of the strings and piano.

Technical explanation

When the amplifier drives speaker, at the same time, speaker generates counter-electromotive force. This is because the speaker operates according to the same principle as a motor. This counter-electromotive current returns to the amplifier via the speaker cord, making it difficult to drive speaker in accordance with the input signal.
It is because this current makes negative effect to the feedback loop causing complicated phase delays. This physical phenomenon hurts the sound quality of the audio system.
Absorbing the part of counter-electromotive force by RSP-AZ9EX, the amplifier can drive the speaker more easily. This enables more accurate speaker drive, and it can reliably reproduce fine signals. Musicality is expressed by delicate and fine signals.RSP-AZ9EX plays the sound with Musicality by reliably reproducing those fine signal.


RSP-901EX enriches low frequency and improves localization for mid-high frequency.
Especially, vocals become very attractive.


Compatible speaker impedance Preferably 10Ω or lower
Max amp output Preferably 1 kW or lower
External dimensions 100 x 47 x 117 mm (W×H×D)
Weight Approx. 250g
Package contents 2 units, 1 polishing cloth, Operational manual


"So my first impressions are that as the Spec RSP-AZ9EX Real Sound Processors have started to run-in, the result has been an increase in the gorgeous tone my Corona's are capable of, more musical nuance, more naturally presented timbral textures, more nuanced dynamics across the range, and an increased sense of presence of the images."

- Review by Jeff's Place, Positive Feedback


Sometimes we want to listen to our brand new audio setup without having to worry about dragging B&W up two flights of stairs - that's where we come in! Not only are our team experts in high quality AV equipment, they're also professional bodybuilders* who can deliver and install your new toys quickly and efficiently.

Our in-house team can service those in Brisbane, the Gold Coast, and the Sunshine Coast. Give us a call to get an obligation-free quote today!

*the term 'professional bodybuilders' is used here loosely...

Our refund policy operates in a 30-day window - after this time we are unable to accept the product and cannot issue a refund. Don't worry, our products are hand picked from thousands of luxury brands to ensure you are only offered the best of the best so we doubt you'll need to consider this policy at all. If you are concerned about making the wrong decision when it comes to your purchase, please feel free to talk with our team of experts who can advise you on equipment based on your personal music taste, aesthetics, and the layout of your listening room. Still not convinced? Discuss the possibility of a loan (trial period) with our experts and hear the difference yourself.

Our refund policy can be viewed here.

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