Using The Amplifier; Power Ratings - Devine D Series User Manual

The Devine D-series amplifiers are built to last. To get the most out of your speaker system, it is
recommended you read this manual thoroughly to familiarise yourself with all the options and features of this
amplifier. Correct use of the amplifier will ensure that the expected lifespan of this device remains
unchanged, as overload of this power amplifier may result in damage to your power amplifier and/or speaker
system.

Power ratings

The Devine D-series are a complete range of digital class D power amplifiers, each with their own individual
power ratings. This way, you are able to select the right amplifier for the job! The D-series consist of the D-
200, D-400 and D-600. The D-200 is the most affordable version, with a relatively low power rating. This is
the ideal power amplifier for speakers that do not need a large amount of power. The most powerful version
is the D-600, which can be used to drive a large subwoofer in Bridge mode, or a couple of PA-speakers.
To be sure that this power amplifier is used safely to power the speakers you wish to connect, pay attention
to the power ratings of your speakers.
If the RMS power rating of the power amplifier is identical to or max. 2x as powerful as needed to drive your
speakers, then the amplifier is suitable to use. For optimal performance, it is recommended to use a power
amplifier which is capable of delivering full power to your speakers.
It is not recommended to drive a speaker with a 300W RMS power rating, using a power amplifier with a
maximum power rating of 200W RMS. An amplifier with a rating between 300W RMS and 600w RMS would
be ideal because:
- a more powerful amplifier does not need to perform at 100% capacity when the speaker is already driven
with a signal at maximum performance.
- a more powerful amplifier has more headroom when driving a speaker at its maximum power level. This
means peaks in the music will not cause clipping (or signal distortion and possible damage as a result of
exposure to long-term clipping).
- a more powerful amplifier can often be used if you choose to purchase new speakers with a higher
maximum power rating.
- the cause of defective 'blown up' speakers is usually when power amplifiers create too much signal
distortion due to frequent and long-term clipping.
- most speaker power ratings are based on measured or calculated sine waves. The audio signal consists of
peaks and dips in the music. Most speakers are capable of handling certain (short-term) peaks as well as
unexpected signal peaks. It is therefore safe to use a more powerful amplifier to drive your speakers.
- Clipping can cause permanent damage to both your speakers and power amplifier. A powerful amplifier is
more likely to provide sufficient headroom, while long-term exposure to excessive amplifier power can have
a negative effect on your speaker system.
How far can I turn up the volume on the amplifier?
Keep in mind that the power rating of your speaker system and power amplifiers is usually measured or
calculated with sine waves. As music is commonly played through your speaker system (which has a
dynamic character), you should always monitor your speaker performance. Audio distortion could cause a
loss of signal quality, and excessive amounts of power could cause other signal quality issues and possibly
permanent damage to your speakers.
To maintain optimal signal quality, use the following checklist. This is a handy way to adjust your speaker
system so it performs optimally, but without losing audio quality:
1. Make sure your signal source is not overdriving. When using a DJ or PA mixer, or a DJ controller with
audio interface, make sure it does not send a signal that exceeds 0dB. Any value higher than 0dB will cause
signal distortion.
2. After you have checked step 1, carefully turn the amplifier volume level up as far as possible.
WARNING: When increasing the volume controls of your amplifier, always listen carefully to the connected
speakers and keep an eye on the clip indicators on your amplifier. Decrease the volume level of the amplifier
Any information and illustrations shown in this user manual are subject to change without further notice.
User manual version: 4.0

Using the amplifier

Creation date + author initials: 11-12-2015 RV Revision date + author initials: 10-12-2015 RV