lotaz
Minor Hero
Posts: 70
|
Post by lotaz on Apr 24, 2019 18:15:57 GMT -5
With the new LRS Magnapan speakers being at such a reasonable cost (and getting great reviews) I was thinking about trying out a pair. Heck they have a 60 day trial period. Anyway it was bought up they need high current and high amps. The dealer told me that if my amp doubled or came close to doubling power at 4 ohms as opposed to 8 ohms then I should be fine. The A-300 is rated at 150 for 8 and 300 at 4 ohms. Is this going to work or should I be on the search again for an amp? I guess the worst case I cancel my order.
|
|
|
|
Post by pedrocols on Apr 24, 2019 19:26:25 GMT -5
It should work. I used to power a pair of mg12s with upa-1 amps which are rate at 300 wpc @ 4ohms
|
|
|
|
Post by Jean Genie on Apr 24, 2019 20:10:42 GMT -5
With the new LRS Magnapan speakers being at such a reasonable cost (and getting great reviews) I was thinking about trying out a pair. Heck they have a 60 day trial period. Anyway it was bought up they need high current and high amps. The dealer told me that if my amp doubled or came close to doubling power at 4 ohms as opposed to 8 ohms then I should be fine. The A-300 is rated at 150 for 8 and 300 at 4 ohms. Is this going to work or should I be on the search again for an amp? I guess the worst case I cancel my order. Keep the maggies, get the A-300 and enjoy ... life!😉 |
|
klinemj
Emo VIPs 
Honorary Emofest Scribe
Posts: 14,742
|
Post by klinemj on Apr 24, 2019 20:36:47 GMT -5
With the new LRS Magnapan speakers being at such a reasonable cost (and getting great reviews) I was thinking about trying out a pair. Heck they have a 60 day trial period. Anyway it was bought up they need high current and high amps. The dealer told me that if my amp doubled or came close to doubling power at 4 ohms as opposed to 8 ohms then I should be fine. The A-300 is rated at 150 for 8 and 300 at 4 ohms. Is this going to work or should I be on the search again for an amp? I guess the worst case I cancel my order. I think you will be fine unless you want bleeding ear level sound. In which case - you would want something like Klipsch instead of Maggies. Mark |
|
|
|
Post by adaboy on Apr 24, 2019 20:38:05 GMT -5
Works just fine.
|
|
lotaz
Minor Hero
Posts: 70
|
Post by lotaz on Apr 25, 2019 14:33:45 GMT -5
Thanks for the input, it's much appreciated! Worse case I need a new amp, I am sure the XPA2 would carry the load. I am getting the LRS's in addition to what I already have. I have known several people that have both maggies and Klipsch in their house and switch back and forth depending on what they are listening to. I thought I would give it a try as if I don't like it I am not out much.
FYI I already have the A-300 running Klipsch RF7 IIs but I see that on the phone you do not get my sig which has my current set up.
|
|
|
|
Post by boomzilla on Apr 25, 2019 14:45:21 GMT -5
A-300 + Maggies = Yes. But don't get stupid with party volumes.
|
|
|
|
Post by jmasterj on Apr 25, 2019 16:05:40 GMT -5
I have MMG's that I easily drive with my tube integrated amp rated at 95 watts @ 8ohms, 190 watts @ 4ohms. The A-300 won't have a problem.
|
|
lotaz
Minor Hero
Posts: 70
|
Post by lotaz on Apr 25, 2019 17:26:00 GMT -5
A-300 + Maggies = Yes. But don't get stupid with party volumes. Being married and 54 (5 Grandkids to boot) I don't party like I used to.  I should be ok. |
|
|
|
Post by vcautokid on Apr 25, 2019 17:39:00 GMT -5
You should be fine. I have used Magnepans a long long time, and the A-300 will do fine.
|
|
|
|
Post by Loop 7 on Apr 25, 2019 19:34:37 GMT -5
Of course.
|
|
|
|
Post by boomzilla on Apr 25, 2019 19:35:40 GMT -5
A-300 + Maggies = Yes. But don't get stupid with party volumes. Being married and 54 (5 Grandkids to boot) I don't party like I used to. I should be ok. 54! You're STILL a kid! LOL |
|
|
|
Post by jackfish on Apr 25, 2019 19:36:25 GMT -5
85 decibels is plenty loud for discerning listening. That’s your first watt. Anything above that is for transient peaks and 250* watts is enough in any reasonably sized room.
*The Emotiva A-300 does not double it’s power from 8 Ohms to 4 Ohms. The 8 Ohm rating of 150 watts is at 20 Hz to 20 kHz and 0.1% THD, while the 4 Ohm rating of 300 watts is at 1 kHz and 1% THD.
|
|
|
|
Post by audiobill on Apr 26, 2019 5:31:57 GMT -5
Magnepan. Made in the USA, craved everywhere.
|
|
lotaz
Minor Hero
Posts: 70
|
Post by lotaz on Apr 26, 2019 10:42:40 GMT -5
85 decibels is plenty loud for discerning listening. That’s your first watt. Anything above that is for transient peaks and 250* watts is enough in any reasonably sized room. *The Emotiva A-300 does not double it’s power from 8 Ohms to 4 Ohms. The 8 Ohm rating of 150 watts is at 20 Hz to 20 kHz and 0.1% THD, while the 4 Ohm rating of 300 watts is at 1 kHz and 1% THD. That's what I was thinking, I wish they would have put a true 4 ohm power rating. Anyone know what it is? |
|
|
|
Post by jackfish on Apr 28, 2019 3:17:07 GMT -5
|
|
|
|
Post by donh50 on Apr 28, 2019 11:03:38 GMT -5
There are IHF/FTC power ratings but there was a huge fight in the industry so they were not updated for multichannel. Basically manufacturers did not want, and did not feel it was needed, "all channel" power ratings. I've forgotten the details but there are several write-ups about including those on the gov't sites.
SS amps tend to use feedback and clip very rapidly when their power ratings are exceeded. Thus, the 0.1% point over the entire frequency range is probably very close to the 300 W spec at 1% and 1 kHz. I wouldn't worry about it.
For the record, the product of RMS voltage and RMS current is average power. There is no such thing as RMS power. Just to be technically anal about it... (Design engineer, can't help it.)
|
|
|
|
Post by selind40 on May 14, 2019 12:31:36 GMT -5
Thanks for the input, it's much appreciated! Worse case I need a new amp, I am sure the XPA2 would carry the load. I am getting the LRS's in addition to what I already have. I have known several people that have both maggies and Klipsch in their house and switch back and forth depending on what they are listening to. I thought I would give it a try as if I don't like it I am not out much. FYI I already have the A-300 running Klipsch RF7 IIs but I see that on the phone you do not get my sig which has my current set up. Did you get the LRS's yet?? If so, how do you like them...... |
|
|
|
Post by Hair Nick on May 14, 2019 13:26:24 GMT -5
I know Don Lindich over at Sound Advice just got our BasX A-300 and he is hooking it up to the new LRS speakers. Waiting to hear back how they perform together myself  |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 15, 2019 11:48:22 GMT -5
Sorry I'm late here. The different power measurement specs at 8 ohms and 4 ohms is what us old folks call fudging. It sill irritates me even with my beloved Emotiva products, the best bang for the buck, period!. Posting the power specs into 4 ohms should be listed just like into 8 ohms, 20 Hz to 20 kHz and 0.1% THD, hopefully with both channels operating. Trying to hit the 2X ideal power difference to impress the uneducated to me is not needed. The amp power race (in amps, Integrated amps and power amps) over the last few decades has gone too far. Emotiva can easily explain why the A-300 does not hit 2X power but does produce a very respectable XXX watts in this very affordable level of power amp. Of course the impedance can vary greatly with frequency change in the speaker. The amp might not perform quite as clean at 4 ohms as 8 ohms when strained. It might mean they need to list the 4 ohm spec slightly more conservative such as 220-250 watts (guess) into 4 ohms, 20-20kHz, 0.25% THD (or 0.5%), both channels. This is fine with me. Knowledge about power amps seems to be disappearing such as the claim above that any power above one watt is just for peaks. Try comparing the sensitivity or aka efficiency of lotaz's Klispch RF-711 at about 101 dB's into 8 ohms and the LRS Magnapan's at about 86dB's into 4 ohms. The 0.1% point over the entire frequency range is probably very close to the 300 W spec at 1% and 1 kHz. Bologna! Please excuse my Italian.  I guessing your Maggies will be fine. The test period is great. I'll be very interested in hearing your comparative thoughts on your two very different speakers. |
|
