
SPL TDx Transient Designer
The Transient Designer TDx brings level-independent dynamics processing to the world of 500 Series.
Attack can be used to increase or attenuate the attack phase of a signal by up to 15 dB. Positive attack increases the amplitude of the attack phase. Negative attack attenuates the amplitude of the attack phase.
With Sustain the decay phase of a signal can be increased or attenuated by up to 24 dB. Positive Sustain extends the decay. Negative Sustain shortens the decay.
The mix control allows continuously blending between processed (WET) and unprocessed (DRY) signals.
With the output control the output gain can be attenuated in order to optimally drive following devices.
Product Overview
Product Specifications
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Shipping Information
We provide free shipping on most items and Next Day delivery on all orders completed before 12pm (noon!) so you don’t have to pay extra or wait long to start enjoying your new equipment.
We use DPD to ship the majority of our orders within the UK. International locations will vary, learn more here.
Product Support
We work with some of the world’s leading audio manufacturers to provide everything from the trusted studio classics to modern, innovative technologies that help you to push sonic boundaries. We pride ourselves on offering the best support both before and after sale. If you have any questions, please get in touch.

SPL TDx Transient Designer
New Gear FAQs
Are all new items in stock?
With such a wide range of products we cant stock everything at all times.
The product page will display if an item is in stock. If it is marked as pre-order, you can place your order as normal and await its arrival into stock.
Please get in touch for an estimated shipping date. This may vary depending on stocking level with the manufacturer and/or distributor.
What warranty do you get with new gear?
Minimum 1 year manufacturer's warranty. Some manufacturers may also extend this (please see their respective websites for more information).
Can I part exchange used gear towards new gear?
Of course! Whether youre just looking to sell unused gear or looking to upgrade, get in touch here to discuss.
Can I test the equipment before I buy it?
We have a demo room at MNPA HQ where you are welcome to come and try out the equipment we have in stock. We’re not a shop and open to the general public so please get in touch via our Contact Form to book an appointment before coming to see us.
