Primare SPA23 A/V Amplifier
Primare SPA23 A/V Amplifier
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The Sound and Vision of Scandinavia
Nature favours better design. Wherever you look, the most successful designs are always the most efficient. By rejecting unnecessary features, they have evolved to become simpler but also more sophisticated.
Scandinavian design is like this: practical, unpretentious, beautifully efficient and powerfully satisfying in its simplicity. And when you own a home entertainment system from Primare, you’ll sense that Primare celebrate these values as well. Through Primare audio/video systems you will enjoy the benefits of cutting-edge technology and high performance without complexity, in a form that is easy to use and in a way that you will appreciate over many years.
For those who value performance over gadgetry, convenience over complexity, understated elegance over conspicuous display, the new SPA23 AV amplifier offers all the quality and scale of high-end home cinema performance in a beautifully engineered, easy-to-use design. The SPA23 is definitively Primare in character, blending superior innovation, flexibility and signal purity with an exclusive visual chic. Equipped with five identical 120W UFPD amplifiers, HD audio processing, five state-of-the-art HDMI inputs, two HDMI outputs and a versatile range of analogue and digital audio inputs, the SPA23 will deliver easy access to the explosive energy - and all the detailed subtlety - of the latest high definition film and music sources.
Ultra Fast Power Device (UFPD) Class-D Amplifier
The use of switch mode power electronics is gaining in popularity as the result of its lower energy consumption and as a way to squeeze more amplifier channels into smaller spaces. Unfortunately Class D amplifiers and their switch mode power supplies have traditionally deserved a reputation for poor audio quality, characterised by rising THD with frequency. Primare’s UFPD (Ultra Fast Power Device) technology provides for the possibilities of a full-range ‘audiophile’ Class D design. It is a Class D technology which has a consistent 26dB feedback loop gain across the entire audio bandwidth and is stable way beyond the audible frequencies. This is quite easy to achieve in conventional linear ‘continuous signal’ amplifiers, but much more difficult in ‘non-continuous’ high speed switching amplifiers.
Rather than have the amplifier and then the filter as discrete stages, the UFPD design integrates the two, making control with feedback much more immediate and accurate. The UFPD amplifier actively adapts the loop gain to keep the total loop stable during start up, clipping and current limit. It senses the changes to the filter output and compensates by applying the precise amount of feedback. This adaptive pole control allows for several more dBs of constant loop gain across the audio band and maintains performance irrespective of load (impedance) variations.
Primare’s UFPD treats all signals equally regardless of frequency or slew rate and has the ability to suppress the filter resonance entirely. Consequently THD is kept very low at all frequencies. With a very wide ‘load independent’ frequency response UFPD is able to drive any speaker while maintaining control and accuracy. Primare has optimised the performance of its innovative UFPD design with the precise selection of circuit component values and quality, verifying the design with extensive measurement and listening.
Primare UFPD Design versus traditional Class D:
Flat frequency response
Load independant frequency response
Low output impedance in the entire audio band
Low THD in the entire audio band
Most Class D technologies display:
Peaking frequency response
Load dependant frequency response
High output impedance at high frequencies
High THD at high frequencies
PFC Power Supply
Although switch mode power supplies have gained a reputation for noise and unreliability, the theoretical advantages of the design are well known. The rails can be regulated with precision and current demand from the mains is lower as the result of high efficiency and the absence of current spikes: energy is taken from the mains over a larger period of the sine wave.
In conjunction with UFPD, Primare uses an isolated PFC (Power Factor Control) technology in the power supply, which controls the current from the mains voltage so that it is a pure sine wave with the same frequency and phase as the mains voltage. This means that even if 1000W is taken from the mains, other equipment in the room will not be affected. Its presence becomes virtually invisible to the mains voltage! The isolating stage of the converter works in a ZVS mode and as a result, the switch flanks contain a lower quantity of harmonics, providing lower EMI and a clean environment for the amplifiers to work in.
HD Video pass through (3D)
Upscaling to 1080p
5 HDMI Inputs
2 HDMI Outputs
New Onscreen Menu
Individual offset per input
Individual video settings per HDMI output
5 x 120W UFPD Amplifiers
South Africa Welcomes Primare with a Clutch of Awards
South Africa’s specialist home tech title AV Magazine has been busy with Primare over the last few months, and the results have been spectacular! in AV’s August 2014 issue, reviewer Joel Kopping said “in reality (it) has all the features anyone will probably ever need. Most of all it’s superbly built, and sounds terrific…” The SPA23 went on to be recommended as an ‘AV Receiver of the Year’.
Please find full review in the downloads section
Primare SPA23 A/V Amplifier
|Product Name||Primare SPA23 A/V Amplifier|
|RMS Power @ 8 Ohms||120 Watts|
|High Current Output||No|
|Amplifier Type||Ultra Fast Power Device|
|1080P Video Scaling||Yes|
|4K Video Scaling||No|
|Multi-Room||Pre-Out Zone 2|
|Network Music Streaming||No|