Sennheiser Ambeo Plus vs Sony Theatre Bar 9

Venger

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Jan 15, 2025
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About a month ago I took delivery of a Samsung S95D along with a Panasonic UB820 blu ray player and I've been blown away by everything except the sound.

I always knew a soundbar would probably be required so I'm now in the market for, ideally, a soundbar only - no sub, no rear speakers and after a lot of reading (too much reading actually) this afternoon I went and demo'd the Sennheiser Ambeo Plus against the Sony Theatre Bar 9.

Using the same scenes from Top Gun Maverick for each bar, it was quite eye opening.

I was so disappointed with the Ambeo Plus - altho quite natural sounding there was virtually no bottom end at all, very bass light and how the Sennheiser website can describe it as having "...rumbling 38hz bass..." is absolutely beyond me.

The Sony Bar 9 had a lot more bottom end, in fact it was quite amazing actually, when the missiles hit to disable the enemy runaway you wonder if you'd ever need to add a sub.

The thing that has REALLY surprised me about both soundbars is that neither gave any sense of surround sound whatsoever...nor any kind of impression of sound coming from anywhere other than beneath the TV screen.

I fully appreciate that the only way to really achieve 'proper' surround sound is to have speakers behind your listening position but there has been acres written on the clever technology that sort of fools you into thinking you're immersed in sound - this was not my experience at all.

I could buy the Sony and probably be happy with the improvement in the general sound of my tv but £1000 is a lot of money just to do this , I think I'd feel a bit short changed in not experiencing anything approaching surround sound or even a wider soundstage.

Does anyone out there own either of these bars and run them on their own with no subs and rears (I appreciate rears aren't an option for the Ambeo)?

Did you find that after a while you had to at least add a sub?
 
Without Subs & Rear / Side / Ceiling speakers you will never get a full " Atmos experience "
2.0 Stereo with great speakers will sound much better than lots of cheaper speakers/soundbar

Small Speakers + AV receiver start with 3.1 or 5.1 & add more speakers ( surrounds/side/ceiling ) for 7.2.4 in the future
Elipson Planets & Slimline AV amp for a 5.2.4 system
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Many thanks for your reply.

Without Subs & Rear / Side / Ceiling speakers you will never get a full " Atmos experience "
2.0 Stereo with great speakers will sound much better than lots of cheaper speakers/soundbar

I totally get that but I have read so many reviews on many different soundbars that talk about how they create a soundtage that sort of immerses you in sound.

This is from What Hi-Fi's review of the Sony Bar 9...

"...This array is designed, as expected, to create a sort of bubble of sound in your room using Sony’s 360 Spatial Sound Mapping, which creates phantom speakers in places where physical speakers don’t exist..."

"...the most Atmos-y delivery we’ve heard from a solo soundbar. You’ll need to add wireless surrounds if you want the audio to stretch behind the listening position, but the Bar 9 alone pushes sound far out to the left and right, a long way into the room and right up to the ceiling..."


Up to the ceiling... really, I'm assuming it's all just a marketing gimic?

Your room looks great btw, interestingly I note your rear surrounds aren't actually behind your listening position. Part of the reason why I don't want rears is because I can't get them behind me. My sofa is flat against a wall with the TV in the corner on an angle which makes it almost impossible to get rears behind you at an equal distance.
 
You could get the Sonos Arc here:


I have had this by itself and thought it was good but I wasn’t either using DTS which I find fantastic because my Samsung TV like yours doesn’t decode DTS. So you are going to be limited to Dolby Atmos surround sound and PCM surround sounds. You won’t be able to decode DTS X either. You also wouldn’t be spending a £1000 on just a soundbar then.

The best soundbar I think is the Samsung 990d but that has rears and a sub.

If you wanted just the soundbar and sub then I think this would be best:


You are not going to get a surround sound experience from just a soundbar and a £1000 is a lot of money on just a soundbar.
 
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Given the horror show that is/was the Sonos app I don't think I could buy one of their products at the moment.

I've read myself round in circles tbh and more than once I've thought s@d it, I'll just buy the Q990D but just wonder if it's (a) almost too much for my room and (b) where do I place the surrounds.

I had also had a demo on Monday of Sony's HT-A9 system as the guy in the shop was saying that these don't necessarily have to be placed in what you might consider optimum positions as they'll do a calibration test of your room etc etc and work out what works best.

These definitely gave a sense of surround sound but without a sub sounded completely gutless, no bottom end at all... they're also expensive if you factor in the sub.

One thing he also mentioned was to consider buying a HDMI equipped amp and adding just two stereo speakers. I didn't even know HDMI amps were a thing. I suppose that could be an option, I've got an old pair of KEF Coda 7's somewhere so would presumably only need the amp.
 
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Given the horror show that is/was the Sonos app I don't think I could buy one of their products at the moment.

I've read myself round in circles tbh and more than once I've thought s@d it, I'll just buy the Q990D but just wonder if it's (a) almost too much for my room and (b) where do I place the surrounds.

I had also had a demo on Monday of Sony's HT-A9 system as the guy in the shop was saying that these don't necessarily have to be placed in what you might consider optimum positions as they'll do a calibration test of your room etc etc and work out what works best.

These definitely gave a sense of surround sound but without a sub sounded completely gutless, no bottom end at all... they're also expensive if you factor in the sub.

One thing he also mentioned was to consider buying a HDMI equipped amp and adding just two stereo speakers. I didn't even know HDMI amps were a thing. I suppose that could be an option, I've got an old pair of KEF Coda 7's somewhere so would presumably only need the amp.
The Samsung Q990D is brilliant and a good deal here:


You can place the rears on the side of the room if you wish, or even try without them. The soundbar is great.

You could go the amp route too. Cheap Denon amps are great. Here’s a good Denon amp:


If you went the amp route you can add more speakers in the future and it will decode DTS.

Probably get a cheaper deal through Peter Tyson eBay.
 
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Interestingly, whilst just looking at amps with HDMI capabilities, I've discovered WiiM streaming amps that have eArc.

Presumably, that could hook up directly with the TV and I could then utilise my Coda 7's...I could even hide them behind the TV.
 

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