Classe Audio SSP-800 Скачать руководство пользователя страница 4

with each band adjustable in 1 Hz steps from 1 Hz to 200 Hz, then 10 Hz steps from
200 Hz to 2 kHz, and 100 Hz steps from 2 kHz to 20 kHz. You can also adjust
individual speaker levels (volume) and enter the distance to each speaker. So, it’s not
as sophisticated as the auto room correction circuits in other products, but it is also
one less step in digital processing that can induce distortion. Frankly, I am on the
fence about automated room correction. In general, I like the results, but sometimes,
when I change the furniture and run the Auto EQ function, the results are not quite
what I expect, so I re-run the program using di

erent microphone placement, and re-

run it again if I have to, in order to end up with something that sounds pleasant. I
have to say at this point that the Classé, even with no EQ added at all, sounds better
than any processor – with Auto EQ – that I have ever encountered. I may take the
time to tweak the EQ at some point, just to make the sound more laid back, because
my aging hearing likes it that way, but that is a personal preference, and it would not
be a flat response.

Below is a series of screen shots illustrating the main menu and sub-menus.

The first one is what you see while using the SSP-800. You can select the source (for
me that is the Blu-ray player – Input 1, and the HDTV cable box – Input 2). The Mode
button accesses the available playback/surround modes. Touching the Video Preview
button will bring up whatever video signal is passing through, and the Controls
button gives you access to Configurations (di

erent speaker combinations or

configurations of levels and subwoofer settings) and the System Trims, which is a
second set of volume controls that allows you to adjust individual channels’ volume
levels for the particular program you are watching. This defaults back to 0
adjustment when you change sources, or turn the SSP-800 o

. The reason for this is

that as part of the setup, you are able to listen to some white noise in each channel
and adjust the volume of each speaker so that it is whatever you want it to be at the
listening position. So, by using the Trims to adjust a channel(s) volume when
watching a particular program, this does not disturb the calibrated volume control
settings.

Содержание SSP-800

Страница 1: ...ne product SPECIFICATIONS Design 7 3 Channel Surround Sound Processor SSP Codecs All Including Dolby TrueHD DTS HD Master Audio Inputs 5 x HDMI v1 4 2 x Component 1 x Composite 4 x Coax 4 x Toslink 1...

Страница 2: ...about the circuit design The DAC is a current output DAC so there is an I V converter followed by a reconstruction filter TI OPA2134 then the volume control then a bu er stage National LM4562 followed...

Страница 3: ...ias and consists of stereo op amps each configured in a balanced design for an individual channel output Most processors and receivers these days come with Automated Room Correction which means you se...

Страница 4: ...that way but that is a personal preference and it would not be a flat response Below is a series of screen shots illustrating the main menu and sub menus The first one is what you see while using the...

Страница 5: ...Menu button on the front panel or on the remote control here is what you see The next step when you are first using the SSP 800 is the System Setup I selected Configuration from the menu above and thi...

Страница 6: ...ations you only see those that you have set up and are in use Then there are the Distance and Levels menus for putting in the distance from each speaker to your sitting position and the volume level s...

Страница 7: ...far enough apart that I could easily get my fingers in between other connectors to insert a plug here and there Isn t it amazing how long it has taken to pare down the sets of component and composite...

Страница 8: ...evice management menu and search for Silicon Labs CP210x USB to UART Bridge Controller COMx Then connect the SSP 800 to your PC with a USB cable and when it asks for the COM port number use the one yo...

Страница 9: ...Detecting the device the SSP 800 is connected to your computer via USB Device detected...

Страница 10: ...Firmware is being transferred Firmware has been transferred to the SSP 800...

Страница 11: ...all that what about the performance I turn the unit on It takes two hand wringing minutes to boot the firmware The blinking blue light stops blinking I hit the Standby button and it powers up I feel...

Страница 12: ...own to 7 1 instead of stereo which is what the original was The fantastic musical score for this film is an experience in itself in seven channel DTS HD Master Audio approximately equivalent to 24 96...

Страница 13: ...ng else that emotes that feeling than jaw dropping I listened to many discs of varying types such as Redbook CD DVD Audio SACD DTS HD Master Audio music and some great soundtracks from lousy movies Th...

Страница 14: ...lower but the noise is not so the noise is a slightly higher percentage of the total signal and thus the THD N measurement is higher I use an 80 kHz bandwidth because it will pick up any spurious sig...

Страница 15: ...19 kHz and 20 kHz paired input signals showed no visible B A peak at 1 kHz Superb IMD measured 0 005 Notice the lack of small peaks adjacent to the 7 kHz signal...

Страница 16: ...peak This represents excellent performance and a listening experience full of fine detail The measured Frequency Response was 20 Hz 20 kHz 0 3 dB...

Страница 17: ...Still using the coax digital input but now with signals at 24 192 sampling a 1 kHz sine wave produced 0 002 THD N...

Страница 18: ...discs played on an OPPO BDP 95 At 1 kHz and 16 44 1 sampling distortion was 0 004 As with the coax digital input 1 kHz through HDMI did not result in any observable B A peak at 1 kHz IMD through HDMI...

Страница 19: ...was 0 001 The left channel yellow has a slightly higher noise floor around 35 kHz 40 kHz and it is also present at 16 44 1 sampling so it is something generated in the circuitry It s inaudible in any...

Страница 20: ...signals below 120 dB can change from day to day You never know what is going on to cause such artifacts So with the HDMI v4 1 fully engaged with the SSP 800 HDMI is finally a true high...

Страница 21: ...fidelity input Lastly we analyze the analog path I used the XLR inputs and front left right XLR outputs on the SSP 800 and generated analog signals with the Audio Precision...

Страница 22: ...At 1 kHz THD N was 0 002 Raising the volume control to 5 0 lowered the input voltage necessary to produce a 2 volt output At a volume setting of 0 0 it took about 2 3 volts to produce 2 volts...

Страница 23: ...put The distortion was insignificantly higher With analog XLR input and 19 kHz 20 kHz sine wave input there was a B A peak 110 dB below the fundamentals This is insignificant but measurably di erent t...

Страница 24: ...when using the digital inputs IMD with the XLR connections was 0 002 which is excellent...

Страница 25: ...THD N vs Frequency indicated a bit more distortion and 0 0004 is definitely just a bit in the left channel Output voltage with the volume control set to 0 0 indicated a sharp knee at about 3...

Страница 26: ...ound sound from movies or music discs than what I experienced with the Class SSP 800 This is definitely reference quality Finally one can have audiophile grade sound with multi channel music as well a...

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