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    Tube Newbie with a Speaker Question

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    Sprags

    Posts : 123
    Join date : 2013-02-27

    Tube Newbie with a Speaker Question

    Post by Sprags on Wed Mar 13, 2013 3:55 pm

    The speakers I am going to use with the VTA ST-120 Bob Latino is wiring for me have the capabilty of being bi-amped or bi-wired (i think) I went to a high end audio store a few weekends ago and told the sales person my plan to buy a tube amp from a person I know. The store he worked at handled McIntosh along with another tube amp manufacturer so I listened to what he told with belief that what he was telling me is true. He said if the speaker I choose has the capabilities I mentioned that I could put a jumper between the speaker inputs and connect the speakers using what I thought he told me was a bi-wiring configuraton and the speakers and system would take advantage of the amps power and sound better this way. Is this true?

    Of course I can also connect the speakers without jumpers and have them wired to the amp the 'conventional'or standard way right?

    Thanks in advance....Blake


    hawaii.ken

    Posts : 157
    Join date : 2012-01-31

    Re: Tube Newbie with a Speaker Question

    Post by hawaii.ken on Wed Mar 13, 2013 4:33 pm

    Sprags wrote:I could put a jumper between the speaker inputs and connect the speakers using what I thought he told me was a bi-wiring configuraton and the speakers and system would take advantage of the amps power and sound better this way.

    That would take 2 amps I think.

    Depending your speaker's efficiency that may not a problem.

    Sprags

    Posts : 123
    Join date : 2013-02-27

    Re: Tube Newbie with a Speaker Question

    Post by Sprags on Wed Mar 13, 2013 7:35 pm

    Got it. Thank! Blake

    wedg714

    Posts : 74
    Join date : 2011-11-23

    Re: Tube Newbie with a Speaker Question

    Post by wedg714 on Thu Mar 14, 2013 5:33 am

    what model speakers are you planning on using?

    Sprags

    Posts : 123
    Join date : 2013-02-27

    Re: Tube Newbie with a Speaker Question

    Post by Sprags on Thu Mar 14, 2013 6:07 am

    I have decided to go with Polk Audio LSiM 703's. I bought them from the companies eBay web site. They were delivered yesterday. I connected them to a Sony A/V receiver just to check them out. i am amazed at the sound quality.

    I can't wait to get them hooked to my VTA ST -120 amp in a few weeks. I can only imagine them being only even better sounding. Additionally they will be broken in by then too.

    hawaii.ken

    Posts : 157
    Join date : 2012-01-31

    Re: Tube Newbie with a Speaker Question

    Post by hawaii.ken on Thu Mar 14, 2013 9:05 am

    Efficiency: 88 dB
    Recommended Amplifier Power: 20-200 watts per channel

    You should be OK with the VTA ST-120.

    Sprags

    Posts : 123
    Join date : 2013-02-27

    Re: Tube Newbie with a Speaker Question

    Post by Sprags on Thu Mar 14, 2013 11:50 am

    They aren't the most efficient but I like the way they sound like they aren't there.

    sailor

    Posts : 269
    Join date : 2011-04-04

    Re: Tube Newbie with a Speaker Question

    Post by sailor on Thu Mar 14, 2013 1:58 pm

    If you wish to bi-wire you must remove the jumper wires between the two sets of speaker inputs and run 2 sets of wires from the same output of the amp [piggyback]. Check the manual for your speakers. Then at the speaker you would hook one set of wires to each speaker input. But I wouldn't bother. It's a good way for them to sell you 2 sets instead of one set of there very expensive speaker cables. Removing the jumper separates the Bass speaker and its crossover from the other speakers and there crossover parts.
    Bi-amping requires the removal of your crossover, the addition of an electronic crossover and at least 2 amps. This is a good method but there is a problem. Many speaker drivers are not perfect and require correction in the form of shelving or weird crossover points. Example, my maggies crossover the bass at 350HZ. but to correct for a bump in the midrange it crosses it at 500hz. A electronic crossover would cross both at 350 and leave 6 to 12 db hump in the midrange.
    It's best to stay simple and use one amp. 1 set of speaker wires into 1 set of speakers.
    That's my 2 cents.

    Sprags

    Posts : 123
    Join date : 2013-02-27

    Re: Tube Newbie with a Speaker Question

    Post by Sprags on Thu Mar 14, 2013 3:59 pm

    After posting that question which I did before getting the speakers I opened the speaker box and read the owners manual on how to bi-amp the speakers. I have another set of speakers with bi-amp/bi-wiring capabilities and because of the Sony receiver being a Home Theater 7.2 channel smp i tried out that setup on the other speakers. There really wasn't a sonic improvement so far as I could tell. I'm going to keep my tube amp system as simple as possible for the speaker wiring setup.

    Thanks for the input everyone....Blake

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