Amplifier with DSP Match UP 7DSP

Amplifier with DSP Match UP 7DSP

The UP 7DSP is MATCH's most powerful amplifier with DSP and features the new ADEP.3 circuit. With a total of 7 amplifier channels and an additional preamplifier output, individual speaker configurations can also be perfectly controlled using the integrated 8-channel DSP. The two amplifier channels, each with 160W sine wave power at 2Ω, provide more than enough power to warm up even large subwoofers. But sheer performance is only half the battle without "intelligent control" - that's why the extremely fast 64-bit DSP of the latest generation together with new, revolutionary DSP functions such as "Augmented Bass Processing", "StageXpander" and "RealCenter" ensure a breathtaking musical enjoyment. All this is not enough. Enjoy music in the best sound quality from your smartphone. The UP 7DSP offers a MATCH expansion card slot (MEC slot) for additional input and output modules, such as a Bluetooth ^® Audio Streaming module or a high-resolution audio USB sound card. Thanks to the professional and at the same time user-friendly DSP PC Tool Software V4, the configuration of the UP 7DSP is playful and intuitive.

HD class technology

The UP 7DSP combines the advantages of Class H technology with the principle of a Class D amplifier. The result is an unsurpassed level of efficiency that again surpasses conventional Class D amplifiers. The advantages of the Class HD concept are manifested at low and medium modulation levels, as the power supply regulates the internal supply voltage power stages depending on the amplitude of the input signal. This drastically reduces the average power loss generated by the amplifier.

Intelligent high-level input ADEP.3

Modern, factory-installed car radios are becoming more intelligent when it comes to diagnosing connected speakers. In particular, the latest generation is equipped with additional monitoring functions, so that when an additional amplifier is connected, error messages or even malfunctions may occur. The new ADEP.3 (Advanced Diagnostics Error Protection Generation 3) circuit prevents these problems without unnecessarily loading the radio's speaker outputs at high levels.

Start-Stop capability

The power supply in the UP 7DSP amplifier provides internal power even in case of short-term drops of up to 6 volts. This ensures that the amplifier remains fully functional even when the engine is started. If the voltage on the board drops below 10.5 volts for more than 5 seconds, the amplifier will go into "Protect Mode" (status LED is solid red) to prevent further discharge of the battery.

Automatic digital signal detection

Switching between analog and digital input is controlled by a signal. As soon as an audio signal is detected at the optical input, the amplifier switches to this input. This function can be deactivated in the DSP PC-Tool or alternatively manual control can be selected using the optionally available remote control.

Power saving mode

The power saving mode allows you to drastically reduce the power consumption of the UP 7DSP amplifier (and any other connected amplifiers) if there is no input signal for more than 60 seconds. When "Power Save Mode" is active, the UP 7DSP's internal amplifier stages and remote output are switched off, significantly reducing power consumption. The amplifier will return to normal operation within 2 seconds as soon as there is a music signal at its input. The switch-off delay can be changed or completely disabled using the DSP PC-Tool software.

RealCenter

The "RealCenter" function is Audiotec Fischer's proprietary algorithm that emphasizes the monophonic information of the left and right front channels to create a unique center signal. Unlike the usual method in which only the channels are summed, there is also dynamic control of the center signal through the stereo information content of the left and right channels. This means that the center channel does not reproduce the signal if only the left channel or only the right channel provides the audio signal. With the usual algorithms, the center channel would be only 6 dB quieter in this case. The "RealCenter" from Audiotec Fischer thus enables a unique, wide view of the stage - and that's ideal for both driver and passenger! The disadvantages of a conventional center channel, such as distracting, narrow spatial sound imaging, are finally a thing of the past.

Advanced bass processing

Audiotec Fischer's proprietary "Augmented Bass Processing", consisting of two revolutionary sound functions: "Dynamic Bass Enhancement" and "SubXpander". These are specifically designed to dramatically improve bass response from subwoofers. "Dynamic Bass Enhancement" ingeniously combines extremely deep bass and high maximum sound pressure - regardless of the type of music you're listening to or the sound settings on the radio. Depending on the input signal, "Dynamic Bass Enhancement" on the one hand boosts the lower frequency range and on the other hand changes the cutoff frequency of the subsonic filter. The result is significantly more powerful, deeper bass reproduction at low and medium volumes without the risk of mechanical or electrical overload of the subwoofer at high volumes. It's just fascinating what kind of bass performance is suddenly possible. If you want the bass range to be a bit deeper and "blacker", you can also activate "SubXpander". Here, additional subharmonic tones are added to the fundamental tones in the frequency range between 50 and 100 Hz.

StageXpander

Depending on the arrangement of the speakers in the vehicle, a more or less wide stereo stage can be created on the front seats. If a center speaker is also installed, sometimes this also limits the spatial reproduction of music. This is where the new Audiotec Fischer "StageXpander" comes into its own - a sound function that seems to remove acoustic boundaries, allowing for a significantly wider stereo base without negatively affecting the accuracy in the localization of voices or instruments. The effect can be adjusted according to personal taste in four stages.

ClarityXpander

Would you like more transparency and substance in high frequency reproduction? Audiotec Fischer now offers exactly the right tool for this with the "ClarityXpander". When properly dosed (and thus selectable in three stages), it adds extra radiance to the undertones - especially useful if the original speakers lack the necessary high-frequency sparkle. Extra high kick is not only available for the two front channels, but also separately adjustable for the center channel. And since, especially with the latter, in connection with musical material rich in aliquots, it is too much, tiring the ear, the automatic dynamic control of the additional aliquot component can even be activated here.

Key properties

• 7-channel enhanced HD-class amplifier with integrated 8-channel 64-bit DSP for universal applications.
• MATCH Expansion Card (MEC) slot for additional input/output modules such as Bluetooth ^® Audio Streaming, High Resolution Audio Streaming via USB, etc.
• High-level intelligent input with ADEP.3 (Advanced Diagnostics Error Protection) circuit and automatic power-on function.
• Unique DSP functions such as "Augmented Bass Processing" to dynamically optimize the subwoofer's bass reproduction, "StageXpander" to expand the stereo perspective, "RealCenter" function that allows the driver and passenger to have the same perfectly focused image on stage and much more.
• Easy configuration with the intuitive DSP PC-Tool software.
• Start-Stop capability up to a supply voltage of 6 volts.
• Optical input in SPDIF format with sampling frequency between 12 and 96 kHz.
• Mono RCA output for connecting an external amplifier, e.g. an amplifier for a subwoofer.
• Compact dimensions and low heat dissipation thanks to maximum efficiency.

Catalog number	UP 7DSP
Brand	Match
Links	Official web presentation
Number of amplifier channelsAmplifiers are divided into: - Monoblocks - 2-channel - 3-channel - 4-channel - 5-channel - 6-channel - multi-channel Each channel is used to power one speaker for the coaxial type, or one side if they are component speakers. Monoblock type amplifiers are mainly used for subwoofers. 2-channel are suitable for both subwoofers and, for example, the front pair of speakers in a car. 3-channel is used for front or rear speakers + subwoofer. 4-channel are used for front + rear speakers or 1 pair of speakers + subwoofer. 6 or 5-channel are used for 2 pairs of speakers + subwoofer, most often. Bridging means connecting the amplifier to a bridge, using the + pole from one channel and the - pole from the other channel. In most cases this is shown as "BRIDGED" on the amplifier.	7
Energy class of the amplifierAmplifiers are divided into two basic classes: analog and digital . Analog amplifiers (A/B) have higher consumption requirements, but usually have a more natural sound. Digital amplifiers (D) have significantly lower consumption and higher efficiency, but the sound may not be as faithful as with classic analog amplifiers.	HD
RMS power into 4 ΩRMS power when loading speakers or subwoofer at 4 Ω. RMS power is the constant power of the amplifier and is one of the most important parameters when choosing an amplifier.	5 x 65W
RMS power into 2 ΩRMS power when loading speakers or subwoofer at 2 Ω. RMS power is the constant power of the amplifier and is one of the most important parameters when choosing an amplifier.	+ 2 x 160 W
Max. (maximum) power at 4 ΩPeak performance "Max." , which the amplifier can develop for a very short time. A relatively unimportant parameter. It is mainly a marketing move to attract customers to high numbers.	5 x 130W
Max. (maximum) power at 2 ΩPeak performance "Max." , which the amplifier can develop for a very short time. A relatively unimportant parameter. It is mainly a marketing move to attract customers to high numbers.	+ 2 x 320 W
Number of DSP processor channels	8
Frequency rangeThe ability of the amplifier to reproduce the signal from the lowest frequency to the highest = faithfully reproduce the sound in a specific frequency band. Professionally: In the frequency range from 40 to 16,000 Hz, the vast majority of fundamental and overtones (harmonics) of all musical instruments are found. We are interested in the course of the radiated sound pressure in this range of frequencies when the loudspeaker system is supplied with constant power. We call this course the frequency characteristic, which tells us the level of radiated sound pressure in decibels (dB) depending on the frequency. The frequency characteristic of a speaker or speaker system can be expressed most succinctly with a graph. Mostly, however, the frequency characteristic is indicated by indicating the maximum tolerance of the sound pressure in the given frequency range, e.g. 50 to 15,000 Hz -+ 6 dB. Since the frequency characteristics of loudspeakers and systems in general are quite uneven, some manufacturers do not even specify this maximum tolerance of sound pressure in decibels in their catalogs for reasons of prestige. Data impoverished in this way is unfortunately worthless. What is valid is that the manufacturer offers a speaker system with a frequency range of 30 to 20,000 Hz, if he is worried about stating the maximum unevenness of the sound pressure in this range, because he can have a tolerance of, for example, +- 20 dB. The unevenness or undulation of the frequency curve in good speaker systems for high-quality music performance should not exceed +-3 dB in the 80 to 12,000 Hz band and +-6 dB in the 40 to 16,000 Hz band. Greater unevenness already depletes or emphasizes certain tonal areas, which can cause audible or even disturbing distortion. The proportion between fundamental tones and higher harmonics also changes, thereby changing the color of the sound, and individual musical instruments as well as the entire musical image sound unnatural.	20 - 22000 Hz
Harmonic Distortion (THD)Total harmonic distortion indicates how much the input signal is distorted in the amplifier. Distortions appear as overtones contained in the output signal. The proportion of originally absent parts of the signal is given as a percentage, typical values are between 0.001% and 0.5%. Distortion is measured in their power band. If it exceeds the limit of 0.7% from a certain power, it is the value of the output power of the given amplifier, from which it no longer plays without distortion and from which the distortion usually increases steeply, so that no further increase in power can be counted on. The lower the value, the better.	< 0.03%
Signal-to-noise ratioThe signal-to-noise ratio means that the output signal always contains noise. The signal-to-noise ratio expresses how much of this noise is compared to the useful signal. The so-called A value is given, which does not take deep and very high frequencies into account. This corresponds to the characteristic of human hearing, which is not so sensitive to deep frequencies, especially below 1 kHz. The higher the value, the better the amplifier is.	105 dB
Damping factorDF - Damping Factor . It is the ratio of the load (repro + cables, crossover, etc.) to the internal resistance of the amplifier. The bigger the DF, the more controlled the bass. Amplifiers with a lower DF tend to hum. Subwoofers with a higher Q in the bass reflex and sometimes in the enclosure will also cause humming.	> 100
Dimensions of the amplifier	46 x 130 x 153 mm