# Upgrade from m700 to bhk 250

**URL:** <https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121>\
**Category:** Amplifiers\
**Created:** [February 4, 2019, 11:42pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121 "2019-02-04T23:42:40Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![atarix2001](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/atarix2001/32/10939_2.png) [@atarix2001](https://forum.psaudio.com/u/atarix2001)\
**Post date:** [February 4, 2019, 11:42pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/1 "2019-02-04T23:42:40Z")

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Hi all

I would like your input on if the upgrade from the m700s to the bhk 250 would be a substantial upgrade on the sound quality specially based on the price difference.

My other components are  
DIrectstream Dac  
BHK Preamp  
Power plant P12  
B&W 805 d3

Thank you

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**Author:** ![guthrie\_m](https://avatars.discourse-cdn.com/v4/letter/g/4bbf92/32.png) [@guthrie\_m](https://forum.psaudio.com/u/guthrie_m)\
**Post date:** [February 5, 2019, 1:01am UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/2 "2019-02-05T01:01:16Z")

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Yes, it’s not a huge level of better. The M700 are really good, but after hearing the BHK250 you won’t want to go back. With your system you will hear a difference.

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**Author:** ![atarix2001](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/atarix2001/32/10939_2.png) [@atarix2001](https://forum.psaudio.com/u/atarix2001)\
**Post date:** [February 5, 2019, 5:06am UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/3 "2019-02-05T05:06:12Z")

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Thank you for your input on this

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**Author:** ![rschulte59](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/rschulte59/32/94583_2.png) [@rschulte59](https://forum.psaudio.com/u/rschulte59)\
**Post date:** [February 7, 2019, 2:26am UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/4 "2019-02-07T02:26:50Z")

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I upgraded from m700’s to BHK250. Initially, before burn-in a good upgrade. After BHK250 has some time to warm up, a very nice sweet. I am now ready to do some tube rolling, as the Amperex 7308 made a huge difference in my BHK Pre. I expect even more with NOS in Amp.

Very happy with upgrade, BHK250 has been around for a few years, so you should be able to get great price on new one. It is a big and heavy beast, and does get a bit warm, which may bother me this summer…

ALL PS Audio and loving it! Thanks Paul and PS Audio Team!  
DMP / DS DAC / BHK SIG PRE / BHK 250 / DS PP15  
Goldenear T Ref

Next up, some ISO-Acoustics Orea’s for most of the above. Those new PS Audio speakers will have to be killers to replace my GE T Refs!

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<div class="post-metadata">

**Author:** ![atarix2001](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/atarix2001/32/10939_2.png) [@atarix2001](https://forum.psaudio.com/u/atarix2001)\
**Post date:** [February 7, 2019, 2:35am UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/5 "2019-02-07T02:35:42Z")

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Tks a look for your comments. I might make the jump and go for the bhk250s 🙂

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**Author:** ![Paul](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/paul/32/6_2.png) [@Paul](https://forum.psaudio.com/u/Paul)\
**Post date:** [February 7, 2019, 1:02pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/6 "2019-02-07T13:02:26Z")

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Nice! The BHKs are just my favorite amplifiers of all time. I know it’s hard for people to get their heads wrapped around the need for great amplifier power in the system - especially when the amp just sits their quietly doing its job without complaint or notice,  
but once you take the plunge and upgrade to a BHK or M700s there’s a whole new world of music waiting for you.

Congratulations!

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**Author:** ![tgttgt](https://avatars.discourse-cdn.com/v4/letter/t/c77e96/32.png) [@tgttgt](https://forum.psaudio.com/u/tgttgt)\
**Post date:** [February 7, 2019, 10:40pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/7 "2019-02-07T22:40:50Z")

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Paul  
Among high-end amplifiers with lofty aspirations, the BHKs are far less expensive than their competitors. I’m sure you have heard amps that cost far more.

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**Author:** ![Paul](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/paul/32/6_2.png) [@Paul](https://forum.psaudio.com/u/Paul)\
**Post date:** [February 7, 2019, 10:44pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/8 "2019-02-07T22:44:17Z")

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Oh, that is for sure. I’ve heard $100K amps that are good but just don’t float my musical boat like the BHKs. There’s certainly prettier ones out there but none I have found that come close sonically.

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**Author:** ![atarix2001](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/atarix2001/32/10939_2.png) [@atarix2001](https://forum.psaudio.com/u/atarix2001)\
**Post date:** [February 8, 2019, 5:09am UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/9 "2019-02-08T05:09:14Z")

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I know it’s not ideal but the P12 would be able to power the BHK 300s?  
The other components connect to the p12 would a Directstream and the BHK preamp.

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**Author:** ![Paul](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/paul/32/6_2.png) [@Paul](https://forum.psaudio.com/u/Paul)\
**Post date:** [February 8, 2019, 1:32pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/10 "2019-02-08T13:32:29Z")

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I wouldn’t recommend the P12 for a pair of BHK amps. It can technically do it but it’ll be struggling.

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<div class="post-metadata">

**Author:** ![atarix2001](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/atarix2001/32/10939_2.png) [@atarix2001](https://forum.psaudio.com/u/atarix2001)\
**Post date:** [February 8, 2019, 2:48pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/11 "2019-02-08T14:48:41Z")

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Tks for the clarification Paul appreciated

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**Author:** ![Cutlr7](https://avatars.discourse-cdn.com/v4/letter/c/edb3f5/32.png) [@Cutlr7](https://forum.psaudio.com/u/Cutlr7)\
**Post date:** [February 8, 2019, 3:18pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/12 "2019-02-08T15:18:56Z")

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Hi Paul,

What about the following for a P20:

Emotiva RMC-1(Surround sound)  
BHK Pre-2 channel and HT bypass  
DSD DAC  
2 BHK 300s  
1 Steller M700 on center  
1 Emotiva surround sound amp(10 channel for sides, rears, atmos ceiling)  
Oppo 203  
Cable box

Do you think it can handle that, most that have it say it can but I want to get your feedback.

Thanks for all you do!

-Jason

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<div class="post-metadata">

**Author:** ![fdreed](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/fdreed/32/9118_2.png) [@fdreed](https://forum.psaudio.com/u/fdreed)\
**Post date:** [February 8, 2019, 4:47pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/13 "2019-02-08T16:47:07Z")

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A P20 for each BHK then?

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<div class="post-metadata">

**Author:** ![atarix2001](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/atarix2001/32/10939_2.png) [@atarix2001](https://forum.psaudio.com/u/atarix2001)\
**Post date:** [February 8, 2019, 5:35pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/14 "2019-02-08T17:35:40Z")

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Follow up on that I guess that the p12 also will struggle with the bhk 250? Tks for all the guidance !

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<div class="post-metadata">

**Author:** ![Cutlr7](https://avatars.discourse-cdn.com/v4/letter/c/edb3f5/32.png) [@Cutlr7](https://forum.psaudio.com/u/Cutlr7)\
**Post date:** [February 8, 2019, 7:19pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/15 "2019-02-08T19:19:49Z")

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Man I hope not…I am trying to save for the first one now lol

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**Author:** ![knecht](https://avatars.discourse-cdn.com/v4/letter/k/f14d63/32.png) [@knecht](https://forum.psaudio.com/u/knecht)\
**Post date:** [February 8, 2019, 8:05pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/16 "2019-02-08T20:05:07Z")

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I have the following equipment plugged into a P20 on a dedicated 20 amp circuit and the load hasn’t exceeded 35%. You should be good with one P20.

BHK Preamp  
DirectStream DAC  
BHK 300’s  
Intel NUC 8th Gen for Roon Core  
DLink DSG-105  
Sony XBR85X900F TV  
Xfinity X1 Cable Box  
4K Apple TV

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**Author:** ![kylemillsap](https://avatars.discourse-cdn.com/v4/letter/k/a88e4f/32.png) [@kylemillsap](https://forum.psaudio.com/u/kylemillsap)\
**Post date:** [February 9, 2019, 9:01pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/17 "2019-02-09T21:01:13Z")

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I’m running my BHK 300s, BHK Pre, DMP, DSDac, all through my P12. No problem. Not even working hard! My speakers are PBN M2!5. Easy to drive, 4 ohm, 95db/1w/1meter.

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<div class="post-metadata">

**Author:** ![atarix2001](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/atarix2001/32/10939_2.png) [@atarix2001](https://forum.psaudio.com/u/atarix2001)\
**Post date:** [March 9, 2019, 3:53pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/18 "2019-03-09T15:53:10Z")

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I end up upgrading to the BHK 300, now I am no sure if I should connect the amps direct to the wall and use the P12 only for the DSD and BHK Pre or connect all to the P12.  
When i connect all the electronics and amps to the P12 load is around 46%.  
Beside load on the P12, the amps would have any limitation in dynamics, sound quality or any risk to damage any of the components?

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<div class="post-metadata">

**Author:** ![kylemillsap](https://avatars.discourse-cdn.com/v4/letter/k/a88e4f/32.png) [@kylemillsap](https://forum.psaudio.com/u/kylemillsap)\
**Post date:** [May 1, 2019, 11:08pm UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/19 "2019-05-01T23:08:01Z")

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I ran a p12 that way for a while. Didn’t have any issues, great sound. It sounded nearly the same as the P20 I replaced it with, until, I got a couple dedicated 20 amp circuits. WOW

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**Author:** ![Famavolat](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/famavolat/32/16310_2.png) [@Famavolat](https://forum.psaudio.com/u/Famavolat)\
**Post date:** [May 2, 2019, 12:02am UTC](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121/20 "2019-05-02T00:02:11Z")

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Is one DirectStream P15 Power Plant enough to power BHK 300’s without struggle or compromise?

Also, I’d be interested in your thoughts on why there are random, intermittent clicks from both my BHK 300 monoblocks (about 3 or 4 times per amp) starting about 20 minutes after front panel turn-on, lasting about 1 1/2 hours. I suspect thermal expansion & contraction of part(s) during warm up & cool down (happens once or twice about 20 minutes after front panel turn-off). Clicks are not coming through the loudspeakers, but directly from the amps. Back panel on/off always switched “on”. Not a big problem, amps sound great from turn-on to reluctant turn-off. Very reluctant turn off. Will be spending a lot more on tube replacement than I originally anticipated.

[Next page](https://forum.psaudio.com/t/upgrade-from-m700-to-bhk-250/9121.md?page=2)
