Surely that deservers a raise for me in the form of additional donations using : You came here to learn about audio but you are also learning about gardening and preserving food as well. The rains are attacking them right now aiming to kill what is left of the plants but I picked another 10 pounds or so today. Once dried, they become like slightly sour and sweet candy. Once ripe, they have an incredible sweet and slightly sour taste. They are called "blush" tomatoes and were invented in San Francisco in 2011! They are oval with the most beautiful coloration as if they are peaches. The job last night after helping my wife can more tomatoes was to dehydrate these beauties: I am going to put the Crown XLS1002 on my recommended list for non-critical applications or for driving subwoofers and such.Īs always, questions, comments, recommendations, etc. But otherwise the amp does what it targets to do. The Crown XLS 1002 falls in that category so if you were expecting to have anything better for so little money and so much power, you would be disappointed. Switching frequency is around 380 kHz and decently attenuated.Ĭompetent pro amplifiers target for good enough noise and distortion. I was unhappy to see distortion shoot up at higher frequencies:įortunately in practice there is not much energy up there so you will be operating in low wattage area where distortion is quite a bit lower.įinally, I removed my AES filter to get the spectrum: This indicates the one channel is starving for current than the other (likely longer path to the power supply). Using 8 ohm load gives a more behaved response than 4: The burst/peak power is not higher because of the limiter I mentioned in the intro. Letting distortion go higher we get higher power output: ![]() ![]() I was disappointed to see one channel be much worse than the other though. Power into 4 ohm is healthy as is the case with most pro amps: Signal to noise ratio is in the same range:įrequency response test shows that everything is digitized due to inclusion of DSP functionality in this amp: Slightly below the average of all amps tested. Ratio of noise+distortion to signal as expressed in SINAD is what I expect decent pro amps to produce: Strange to see higher order harmonics dominating the distortion profile (FFT to the right). Performance was stable during a 5 minute warm up time so I ran with them: Temperature of the case didn't even rise above room temp. Some kind of limiter would kick in after short period to keep the power level at max. Nothing shut down even when the amp was pushed into clipping. But none came on that I could hear above the sound of my PC during testing. There is a fan in the back and some inside. I set the gain to max to get the nominal 29 dB I have standardized on for testing amplifiers. Anyway, I resorted to using the SpeakOn connectors for my testing. The manual says only European units have it but clearly that is not correct. Now don't laugh but I could not figure out how to pull out the safety plugs they put in the darn binding posts! There is no way to grab then and I did not want to put a mark on them by using a sharp tool. I was relieved to see binding posts besides speakon connectors: I guess at this price they had to cut every penny. ![]() The LCD with bluish backlight reminds me of displays on electronics back in 1980s. Not sure what to say about the look other than it is made to have some style while being rugged: Member wanted to buy it through us but the margin on it was no more than a cup of coffee (relative to online sites) so I suggested he buy it elsewhere which he did. We use fair bit of Crown amps in custom installs usually to power in-ceiling speakers and such. Note: our company, Madrona Digital, is a dealer for Harman and hence Crown products. The 1002 costs US $339 including Prime shipping from Amazon. It was kindly purchased new by a member and drop shipped to me. This is a review and detailed measurements of the Crown XLS 1002 rack mounted pro amplifier.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |