Low powered amps for Spatial M3 Turbo S

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nhtran

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Low powered amps for Spatial M3 Turbo S
« on: 13 Jun 2017, 03:36 pm »
I know this topic has been beaten to death but I have a very specific request:  Seeking comments for those who used/have used low powered (esp. single ended) amps to power their M3s. Please provide details on the particular amp (wattage, topology, etc.), your room size and your impressions.

Thanks in advance.

rollo

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Re: Low powered amps for Spatial M3 Turbo S
« Reply #1 on: 13 Jun 2017, 03:39 pm »
  The only way you are going to know is if you actually try different amps. Other systems or ears may help a little but not all. Audition audition audition.
  BTW any good SET amp should suffice. Decware ? Border Patrol ? Coincident ? Air Tight ? Akito ? Have fun.


charles

SFDude

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Re: Low powered amps for Spatial M3 Turbo S
« Reply #2 on: 13 Jun 2017, 04:26 pm »
Ive actually got a pair of Welborne Labs DRD45s, which put about 1.5 W/Ch. They did play but not loud on my pair of M3 Turbo S. I haven't really used them beyond one day as they are sitting and waiting for me to set them up appropriately. But they did play comfortably audible enough within my room (12'x13').

So, success? No impressions as I haven't set them up properly, again. Will have more time in a month to follow up and provide better impressions.

-dave

arthurs

Re: Low powered amps for Spatial M3 Turbo S
« Reply #3 on: 13 Jun 2017, 04:31 pm »
Where are you located?

Wind Chaser

Re: Low powered amps for Spatial M3 Turbo S
« Reply #4 on: 13 Jun 2017, 04:57 pm »
...any good SET amp should suffice. Decware ? Border Patrol ? Coincident ? Air Tight ? Akito ? Have fun.

I have a Coincident Dynamo MKII, under 'normal conditions' it is indeed a very sweet sounding/remarkable amp. Better than the Decware, 2A3, 300b etc I've previously owned. But with the difficult load of the M3ts, it sounds rather bland, common, mundane ... all SET attributes AWOL. So I switched it out with a lowly TPA 3116 that I have on hand and  :o

IMO, anyone using a SET should consider at the very least trying something else. I don't know what the M3ts impedance curve looks like, but I can assure you it isn't very SET friendly, neither is 3 ohms. That is why Clayton introduced the Triode Master.

nhtran

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Re: Low powered amps for Spatial M3 Turbo S
« Reply #5 on: 13 Jun 2017, 06:34 pm »
Where are you located?

I assume you're asking me.  If so, Houston.

eartho

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Re: Low powered amps for Spatial M3 Turbo S
« Reply #6 on: 15 Jun 2017, 11:31 pm »
I used a RedWine Sig 30.2 with my M1Turbo's and enjoyed it quite a bit. Currently have them hooked up to a Odyssey Stratos for a bit more bass control and for those moments when i want concert levels...

sumoking

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Re: Low powered amps for Spatial M3 Turbo S
« Reply #7 on: 17 Jun 2017, 10:44 pm »
I have the M3 Turbo S's and I had a Jolida 1000 integrated amp at 100W per ch. I had the amp modded out with caps and tubes. I have EL-34s in it and with every speaker I matched it with I loved the guts, midrange, and soundstage.  When I got my first high efficient speakers with the M3's TS and plugged them in I was immediately impressed but after time I felt it was missing the magic other fine speakers I had used had.  Clayton told me he really like SET amps and I was thinking about them since I had never owned a SET.  I got custom made, 2A3 4.5 W amp, and was blown away how well they sounded.  I added a custom made tube pre-amp and I feeling the SET magic big time. 

I choose the 2A3 over the 300b due to its better bass response. I also have a transmission line sub woofer with the M3 TS.  Nnothing missing in its presentation. Its awesome top to bottom.

Now Clayton with the Triode Master has even tweaked the speaker even more to improve the match, so i am considering the upgrade.

arthurs

Re: Low powered amps for Spatial M3 Turbo S
« Reply #8 on: 17 Jun 2017, 11:48 pm »
I assume you're asking me.  If so, Houston.

Yep, checking as I have a number of lower powered amps and if you were local in Ft. Worth could have tried a few out.

Poultrygeist

Re: Low powered amps for Spatial M3 Turbo S
« Reply #9 on: 18 Jun 2017, 11:46 am »
I'm really impressed with the Dennis Had Magnavox single ended EL-84. Dennis Had, retired founder of Cary Audio and chief engineer, totally ungraded this vintage amp with all new parts and an improved circuit using a 7308 rather than a 12ax7. One of the sweetest toned amps I've owned and a great match for my Zenith 49CZ802 open baffles.




CSI

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Re: Low powered amps for Spatial M3 Turbo S
« Reply #10 on: 18 Jun 2017, 02:57 pm »
My M4 Turbos are just 1 dB less efficient than your M3's so my experiences should be relevant. The Decware Mini Torii (4 watts) sounded sweet on my M4 Turbo's but didn't have quite enough oomph. Upgrading to a 20 watt Torii Junior did the trick for tubes. Switching to solid state, I realized those big woofers really like more control. The Class A-B Mosfet in the LIO amp (45 watts into the Spatial's 4 ohms) was great overall with tons of volume and density. The best (and final) solution for me was the magical sounding First Watt Class A F7. Plenty of power (30 watts into 4 ohms) and truly marvelous sound. If you have a smallish listening space and/or don't need ear splitting volume I can't imagine a better combination.

Room is a lousy 10' x 10' x 8' box but 4 GIK TriTraps in the front corners help a lot. I use the LIO for my preamp.