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Appropriate Amplifier for my existing Speakers

Discussion in 'Home Theater Projects' started by PATRICK MINAS, Aug 27, 2018.

  1. PATRICK MINAS

    PATRICK MINAS Auditioning

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    Hi,
    Back in 2014, I bought an LG BH9430PW 1460W 3D Blu-ray Theater System when it was first released.
    It is a powerful home theater system but had a lot of issues with its amplifier and rear speakers controller.
    Now I'm left with working speakers and I was wondering if I can buy a good and affordable amplifier for the existing speakers.

    This home theater is a 9.1 channel system but speakers have 2 inputs (Front Facing and 3D Effect upward facing) each except the woofer and the center:

    Front x 2: 180W each
    Rear x 2: 180W each
    Front 3D Upper Speaker x 2: 90W Each
    Rear 3D Upper Speaker x 2: 90W Each
    Center: 180W
    Subwoofer: 200W

    Thanks in advance for any useful advice.
     
  2. Message #2 of 14 Aug 27, 2018
    Last edited: Aug 27, 2018
    John Dirk

    John Dirk Screenwriter
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    This system came with wireless sub and rears, so I suspect you'll need more than an amp. I'm not sure how to solve that particular problem without replacing the sub and rears. Also, by "amp," I assume you meant "integrated receiver," as an amp provides power but not processing.

    You didn't mention budget but I think this would likely fit your needs. The WPC may seem a little low but speakers are usually rated with a recommended power range, not absolute figures as you've listed. The amp sections built into the LG likely delivered real world power below what this receiver would.

    Unless the sub and rears offer wired [in addition to the stated wireless] connectivity I don't know if they'll be usable with a 3rd party receiver.

    http://www.crutchfield.com/S-vbNLTW0TcRt/p_033AVX4400/Denon-AVR-X4400H-IN-Command.html?XVINQ=DST&XVVER=G13&awcp=1t1&awcr=164104824868&awdv=c&awkw=&awmt=b&awnw=g&awug=9010947&gclid=EAIaIQobChMIob2wooiO3QIVloizCh2GgQZdEAAYASAAEgKMZvD_BwE
     
  3. JohnRice

    JohnRice Executive Producer

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    From what I can tell, those speakers have proprietary connectors, but might work with a regular receiver, including (maybe) the rears, but it's impossible to give a real answer without pictures of the connections. You just need to be certain to keep the connectors with some wire left, to attach the new wires to.
     
  4. Message #4 of 14 Aug 28, 2018
    Last edited: Aug 28, 2018
    PATRICK MINAS

    PATRICK MINAS Auditioning

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    Thank you for trying to assist me.

    Yes i meant an Integrated Receiver.

    The existing sub is wired. Do I need an external amplifier to power it up?

    I can bypass the rear wireless system because the rear speakers are just normal wireless speakers connected to the rear wireless receiver instead. the connectors are unique for all the speakers but it can be cut and rewired to the new receiver.

    I looked at the model you sent.
    1. the HEIGHT1 and HEIGHT2 connectors are for the upper facing speakers called 3D in LG?
    2. my fault I didn't set my budget. My problem is that im don't live in the US or Europe so whatever receiver I'm buying imposes some kind of risk because if it wasn't suitable then I can't return it. so I prefer one that is not higher than $500.
     
  5. PATRICK MINAS

    PATRICK MINAS Auditioning

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    Connectors are not important since I'm planning to cut them and rewire them to the new receiver. Rear Speakers are just normal speakers with the same connectors.
     
  6. JohnRice

    JohnRice Executive Producer

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    To answer Q1, yes, the 3D connections on your speakers would be used for Atmos (and height) speakers on the new receiver.

    Regarding your budget, you have nine speaker channels available, and receivers with nine channels of amplification are expensive, but you can get one with seven channels for a fraction of the cost. You just wouldn't connect anything to the rear height (3D) connections. Some receiver have connections for nine channels, but only use seven at any given time.

    The subwoofer depends on what type of connection it uses. If it has its own amp, it should be an RCA type audio connection, and any receiver should work. If it has speaker connections, things will be more complicated.
     
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  7. John Dirk

    John Dirk Screenwriter
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    @JohnRice has answered most of your remaining questions in post#6. Concerning the sub, does it have a volume control? If so I'm pretty sure it has a built-in amp. Most do. If you're still unsure please post a pic of the rear of the sub.
     
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  8. JohnRice

    JohnRice Executive Producer

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    BTW, in my opinion, the slight benefit you'd get from running all nine channels rather than seven isn't worth the significant additional cost for the receiver required to accomplish it. You can easily get a seven channel receiver within your budget.
     
  9. PATRICK MINAS

    PATRICK MINAS Auditioning

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    My subwoofer doesn't have an internal amplifier same as most commercial home theater systems from LG, Samsung, Panasonic, Sony that comes in a bundle.

    Regarding your advice to go for 7 channels, how can I achieve that with only 4 speakers? remember I have 6 pieces only:
    Front Right (containing Front Facing and 3D)
    Front Left (containing Front Facing and 3D)
    Rear Right (containing Front Facing and 3D)
    Rear Left (containing Front Facing and 3D)
    Center
    Subwoofer.

    A 7 channel system should have side speakers and rear speakers. (in addition to the front side speakers, center and sub)

    Please advise.
     
  10. John Dirk

    John Dirk Screenwriter
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    Bummer. I think you'll probably need to look for a powered sub. RSL's "Speedwoofer 10" may be of interest.

    http://rslspeakers.com/speedwoofer10s/

    If you opt for a 7.1 receiver as @JohnRice suggests then your best option will be a 5.1.2 setup which would allow you to connect the front up firing modules only. If you want full Atmos [5.1.4] then you would need to pay the premium for the 9.1 receiver.

    You may want to take a look at Dolby's site to get a better understanding of these options.

    http://www.dolby.com/us/en/technologies/home/dolby-atmos.html
     
  11. PATRICK MINAS

    PATRICK MINAS Auditioning

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    So a 7 channel receiver allows me to run a 5.1.2 or a 7.1?
     
  12. JohnRice

    JohnRice Executive Producer

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    Yes. You can achieve a somewhat compromised 5.1.2 system with what you have now (you'd have to add a powered subwoofer) and 7.1 would require two more speakers in the back, but wouldn't utilize any of your up-firing speakers.
     
  13. PATRICK MINAS

    PATRICK MINAS Auditioning

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    Can't I buy an AC Powered 200W Amplifier for my sub? Like the ones, they use in cars but with AC supply.
     
  14. JohnRice

    JohnRice Executive Producer

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    You can use one of THESE sub amps.
     

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