The power amplifier performs the simple but critical job of boosting the output signals from each channel of your stereo preamp or surround sound processor to the level necessary to drive your loudspeakers. While this may seem trivial, a really good power amp is essential to having a great audio system, because any flaws in the performance of your power amp are going to limit the performance of your entire system.
Every amplifier in the new Third Generation XPA series was carefully designed to deliver superb technical performance, unsurpassed sound quality, and an exceptionally accurate and dynamic rendition of all types of music, thus ensuring that your entire system will sound its absolute best. Each individual XPA amplifier is modular, and can be customised to provide exactly the power and number of channels you need today, and expanded later if your needs change; and multiple matching chassis enable you to add even more channels, or more power, for a near-endless variety of options.
Class A/B Sound Quality Meets Optimized Class H Efficiency
The High-Powered Single Channel Modules used in the XPA utilise a fully analogue Class A/B output stage, and our highly regarded Soft-Switch™ Optimized Class H power supply topology, which increases their efficiency significantly without compromising their superb Class A/B performance and sound quality. At low power levels, each channel operates on a relatively low supply voltage, to minimize quiescent power consumption and standby power losses. Then, when the demand for power increases, it instantly and seamlessly switches to a higher voltage rail to ensure that the signal passes cleanly and without clipping. This process happens on a continuous basis - in real-time, allowing greater overall efficiency, cooler operation, longer component life, reduced power consumption, and increased reliability.
4 x High-Powered Single-Channel Modules
275 watts/channel RMS into 8 Ohms; all channels driven
300 watts/channel RMS into 8 Ohms; two channels driven
490 watts/channel RMS into 4 Ohms; two channels driven
Audio Specifications (Three High-Powered Single Channel Modules):
Power Bandwidth (at rated power; 8 Ohm load): 20 Hz to 20 kHz (+ / – 0.1 dB).
Broad Band Frequency Response: 5 Hz to 80 kHz +0/-2 dB.
THD + noise: < 0.005%; at 100 watts RMS; 1 kHz; 8 Ohms.
Signal to Noise Ratio (8 Ohm load):
> 117 dB; ref FTC rated power; unbalanced input (A-weighted).
> 91 dB; ref 1 watt; unbalanced input (A-weighted).
Minimum Recommended Load Impedance (per channel): 4 Ohms
(which equals one 4 Ohm load or two paralleled 8 Ohm loads).
Damping Factor (8 Ohm load): > 500.
Input Sensitivity (for rated power; 8 Ohm load): 1.5 V.
Gain: 29 dB.
Input And Output Connections
Input Connections (High-Powered Single Channel Modules):
Unbalanced (RCA); balanced (XLR); one each per channel, independently selectable.
Input Connections (Stereo Modules):
3 Unbalanced (RCA); 3 balanced (XLR); two per channel, independently selectable.
Speaker Output Connections: Audiophile grade, gold plated, 5-way binding posts.
Trigger Input: 5 – 12 V (AC or DC); <10 mA input current required.
Trigger Output: 12 VDC; can drive any load up to 120 mA.
17” wide x 8” high x 19” deep (unboxed; including feet).
17” wide x 7” high x 19” deep (unboxed; without feet).
24-1/2” wide x 12” high x 24-3/4” deep (boxed).
35.5 lbs (unboxed).
40.5 lbs (boxed).
Delivery is made by common carrier next working day. Delivery is FREE for orders in-stock and over £100 or £9.99 for orders less than £100 or special delivery items.
Statutory Cancellation Right
You have the statutory right to cancel your order for any reason within 14 days beginning with the day you receive the item (please see clause 2 of our Conditions of Sale for the full instructions on cancellation and further information on your right of cancellation). We only accept cancellations via phone - 0115 975 8613, email - email@example.com or post - Superfi Returns, DB House, Rani Drive, Nottingham, NG5 1RF, United Kingdom.
Our Voluntary Returns Policy
As well as your statutory cancellation rights described above, you can return most products within 30 days of receipt of the products if the products are complete and are in an unused and undamaged condition. We only accept returns via phone - 0115 975 8613 or post - Superfi Returns, DB House, Rani Drive, Nottingham, NG5 1RF, United Kingdom.
Please note that this returns policy doesn't affect your statutory rights and therefore doesn't affect your right of cancellation as described above.
Please note that you must return each item in the same condition in which you received it. This means that new items must be returned new, unused and complete (including all accessories). Refunds for returned items that are not received in this condition, may be reduced.