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Post by GreenKiwi on Sept 4, 2012 11:32:26 GMT -5
I wonder whether they will have a light/indicator to let you know which mode they are running in.
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Post by MukAudio on Sept 4, 2012 11:42:02 GMT -5
I wonder whether they will have a light/indicator to let you know which mode they are running in. I like that idea! Maybe make it selectable for the folks who don't like lights... Mark |
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Post by GreenKiwi on Sept 4, 2012 11:55:02 GMT -5
Yeah, or even just a single simple light next to the power light... with the same dimming settings as the power light would have. I'd imagine that once it goes from A to A/B operation, it takes it a while for it to drop back down, based on temp/usage.
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Post by Dark Ranger on Sept 4, 2012 23:12:02 GMT -5
kzone & garbulky, thanks for your thoughts. Much appreciated.  The more I consider this new amp, the more I want it. This is one of those amps you can build a high-quality system around and keep for many years. It would also give me the warm fuzzies and completely eliminate the pesky "what if" and "I shoulda" second-guessing down the road. I'll wait until the XPA-200 is released, and then review the full specs. However, as of right now, I am 80% certain that I will purchase two XPA-1Ls instead...to Hades with my budget!  Carry on. |
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hemster
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Post by hemster on Sept 5, 2012 0:00:00 GMT -5
A pair of XPA-1Ls are very enticing for a killer 2-channel system. I believe these will sell very well indeed. |
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Post by garbulky on Sept 5, 2012 0:39:36 GMT -5
kzone & garbulky, thanks for your thoughts. Much appreciated. The more I consider this new amp, the more I want it. This is one of those amps you can build a high-quality system around and keep for many years. It would also give me the warm fuzzies and completely eliminate the pesky "what if" and "I shoulda" second-guessing down the road. I'll wait until the XPA-200 is released, and then review the full specs. However, as of right now, I am 80% certain that I will purchase two XPA-1Ls instead...to Hades with my budget! Carry on. |
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Post by paintedklown on Sept 5, 2012 0:57:05 GMT -5
A pair of XPA-1Ls are very enticing for a killer 2-channel system. I believe these will sell very well indeed. +1 I agree totally, and expect these to become one of Emotiva's most popular amplifiers available. Building a 2ch system around these should be KILLER sounding. |
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Post by rocky500 on Sept 5, 2012 1:29:27 GMT -5
I think you might find the XPA-1L will use over 100w to run the 30watts Class A because Class A is not very effiecient, even when idling. I read this "A Class-A amp conducts at all times and the DC is at least equal to the peak output current." from here sound.westhost.com/efficiency.htm#classa |
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Post by garbulky on Sept 5, 2012 2:05:00 GMT -5
I think you might find the XPA-1L will use over 100w to run the 30watts Class A because Class A is not very effiecient, even when idling. I read this "A Class-A amp conducts at all times and the DC is at least equal to the peak output current." from here sound.westhost.com/efficiency.htm#classaYou might be right rocky. I didn't think of the efficiency here. |
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Post by kzone on Sept 5, 2012 2:09:03 GMT -5
what's a few bucks to pay for good sound eh?
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Post by garbulky on Sept 5, 2012 4:33:04 GMT -5
Agreed. |
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Post by briank on Sept 5, 2012 5:13:14 GMT -5
Photos of this little beast.  |
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Post by briank on Sept 5, 2012 5:16:08 GMT -5
Photos of the rear showing the Tiffany style RCA's, locking XLR connection, metal toggle bal-unbal switch and high quality binding posts. Due to being balanced the Pos and Neg terminals are some distance apart similar to the XPA-1. 250 Watts fully balanced in a nice manageable chasis like this is truly awesome. The Class A ability is just icing on the cake. I wish I could have gave it a listen.  |
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Post by garbulky on Sept 5, 2012 5:21:05 GMT -5
Very clean looking. Thank you for the pics brian. It looks to be the size of a UPA-1.
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Post by briank on Sept 5, 2012 5:24:43 GMT -5
Your welcome. Yep, same chasis as the UPA-1 although quite a bit heavier since it's balanced. Lonnie did a great job with this one. For those that love Class A sound, here it is. If you don't like the heat that class A generates. Lonnie included a switch so you could run it in normal class A-B mode. I think this is a brilliant move on his part as this way the amp will appeal to groups that like either Class A or Class A/B operation. With this amp it's like having your cake and eating it too. |
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Post by kzone on Sept 5, 2012 8:36:06 GMT -5
Next product in the series will be XPA 1-XL, with that 60w room heater |
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Post by jmilton on Sept 5, 2012 8:39:48 GMT -5
Your welcome. Yep, same chasis as the UPA-1 although quite a bit heavier since it's balanced. Lonnie did a great job with this one. For those that love Class A sound, here it is. If you don't like the heat that class A generates. Lonnie included a switch so you could run it in normal class A-B mode. I think this is a brilliant move on his part as this way the amp will appeal to groups that like either Class A or Class A/B operation. With this amp it's like having your cake and eating it too. Was the switch a physical switch? Where was it located? |
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Post by briank on Sept 5, 2012 9:55:26 GMT -5
Your welcome. Yep, same chasis as the UPA-1 although quite a bit heavier since it's balanced. Lonnie did a great job with this one. For those that love Class A sound, here it is. If you don't like the heat that class A generates. Lonnie included a switch so you could run it in normal class A-B mode. I think this is a brilliant move on his part as this way the amp will appeal to groups that like either Class A or Class A/B operation. With this amp it's like having your cake and eating it too. Was the switch a physical switch? Where was it located? You're right Jim. I had understood it to be switchable from A A/B to A/B via a physical switch but I don't see the switch for that so maybe I'm mistaken. It must just auto switch depending on heat and output demands. |
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Lonnie
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Post by Lonnie on Sept 5, 2012 10:45:54 GMT -5
Was the switch a physical switch? Where was it located? You're right Jim. I had understood it to be switchable from A A/B to A/B via a physical switch but I don't see the switch for that so maybe I'm mistaken. It must just auto switch depending on heat and output demands. The amplifier will switch from Class A to Class A/B under a few set conditions. First is when the heat sink temperature rises above a set point the system will start to reduce the class A drive gradually and continue to reduce the class A (as the heat sink temperature rises) until it either reaches a point of stasis or the temperature on the heat sink rises to a second set point in which case the amp will just run into class A/B mode until it cools down. The second is when the input signal is greater than the 30 watts of Class A, then it will just move into class A/B for the higher power output. The last scenario is if you want it to just run in Class A/B mode. There is a switch on the back panel that in one position is Auto Class A-A/B and the other position is Class A/B only. The sample that was on display did not have this switch as it was decided to add it later. Now I have a question for you guys. Do you think I should make a new version of the big XPA-1 and add the Auto Class A-A/B circuits? Lonnie |
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Post by LCSeminole on Sept 5, 2012 10:53:52 GMT -5
Now I have a question for you guys. Do you think I should make a new version of the big XPA-1 and add the Auto Class A-A/B circuits? Lonnie I'm going to go out on a limb and guess the Lounge mono-block addicts are going to answer with a resounding "YES". ;D |
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