The placement of the switchers, the output inductors and the power supply filter caps mean one channel will have different impedance traces no matter what. But the pattern was the same IIRC, but for both channels.Īs they are both channel driven tests, we don't know if one is affecting the other or the results are the same in single channel driven modes. The rise and shape in distortion in one channel is similar to another Class D tested recently. I make everything from smoothies to sorbet with them.Īs usual, I could use all the money I can pocket from you all so please donate using : 14 jars of pear were preserved yesterday in syrup. Those huge ones have been sliced and are drying in the dehydrator as I type this. He must be buying a bit of fruit here and there and pretend he does." Well, feast your eyes on the harvest from early in the week in pouring rain:Īnd there was a box of apple on the seat of the Quad! Had just picked the Zucchini a week ago but of course they grow like mad. While I wish better grad capacitor was used in the power supply and from a better brand, given the incredibly low price of this amplifier it is fine.Īs always, questions, comments, recommendations, etc. The Crown XLS1002 has a clean design which obviously has gone through proper design and certification reviews. These things are designed to a) stay connected and b) carry a ton of current. I was impressed with the design of these beefy binding post connectors: This one is well away from heat sources and the brand seems OK so should be fine. In a commercial install though with uncontrolled environment, it will likely die.įor completeness, there is another pair of caps from another low tier manufacturer in the power supply: But seeing how the fan did not even come on and the unit ran very cool, it should be OK. If there was no fan, I would say this amp/capacitor would not last long. They are only rated at 85 degree C and close proximity to those heatsinks: I don't like the pair of capacitors next to it which are part of the power supply. The get decent air flow from the fan but obviously not optimal given the inductors that in the way. Output duty is performed by a pair of transistors on the diagonal heatsinks. It was a joint development between Harman and TI and likely kept as a proprietary part. You can buy the TI SN6112B5 ($7 in quantity) but there is no spec for it. The power supply then feeds the amplifier on the left, the heart of which is the TI controller: ![]() The switched signal is then converted back to lower voltage DC with rectification, filtering and regulation. The high frequency allows much smaller inductors to be used than the 50/60 Hz Mains transformers. Once past that, the AC voltage is converted to DC, rectified, filters and then switched at high frequencies. Right side has beefy noise and EMI filtering. Overall layout is quite logical and nice. Down side is that if you are going to do a board swap, you are basically replacing everything which likely will cost as much as buying a new amp! Using one board lowers labor cost and increases reliability due to elimination of cables. Let's get right into it with the overview shot:Ī single board contains the entire guts of the machine, sans the front panel display. is an authorized Crown retailer.I recently reviewed the Crown XLS1002 Amplifier. System reset allows factory settings to be restored.Security setting disables menu buttons menu locked/unlocked by entering combination.Set sleep mode after specified time without having to press a button.775Vrms options so that amp can be driven at full power Selectable input sensitivity 1.4Vrms and.Increased lighting functionality turn off all LED indicators except clip and thermal to reduce distraction in dark venues.Higher DSP capabilities: More control has band pass filter per channel. ![]() The XLS DriveCore 2 assures that you will be heard as you deliver a powerful, pure sound experience for any venue. Like its predecessor, the new XLS is ultra-efficient with Crowns patented DriveCore technology and can drive 2400W at 4Ì_ bridged with tons of headroom guaranteeing a clean, undistorted signal straight to your speakers.
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