Tube Amplifiers
AKU asked:

U LO SAYS HAS A MONO 1000 WATT AMPLIFIER FROM WHICH PU? KEEP BOTH. COS? SE VADO BY WITH A PIONEER 1000 WATT SUB-WOOFER MEASUREMENT IN A BOX WITH FIBER GLASS FRONT OR JBL 500 WATT TUBE OF LOW OR JBL 1000 WATT TUBE OF THE SEA BASS! ALSO FROM PREFFERENCE tell me: HOW 1> OF 1000 WATT DVC SUB-WOOFER 2> JBL 500 WATT TUBE OF THE SEA BASS 3> JBL 1000 WATT TUBE OF THE SEA BASS! DICA ONLY IF U HAVE HEARD all three, otherwise I 'm LA MUST NOT GIVE U indicates 1st! FOR OTHERS VISIT: JBLCS1200T http://www.jbl.com/car/products/product_detail.aspx?prod=CS1200T/230&cat=TUB&ser=CSS&language=ENG&country=IN&region=EUROPE TS-W306 PIONEERING DVC http://www.pioneer.com.sg/storefront/ProductDetail/default.asp?ProductId=354&CatId=2, 27.51 JBL GTO1200T http://www.jbl.com/car/products/product_detail.aspx?prod=CS1200T/230&cat=TUB&ser=CSS&language=ENG&country=IN&region=EUROPE


Comments

2 Comments so far

  1. casaudiotc on August 6, 2009 2:40 am

    My professional opinion is to go with the Pioneer. The JBL bass tubes, even though they will handle the power, will not give you the bass response you are likely looking for. The tubes tend to sound flat and have a very small range of response. The Pioneer, on the other hand, is designed to provide a richer and smoother frequency response. Aside from that, with the amplifier you are using, the JBL 500 watt tube will not handle your amplifier:

    1 – Pioneer
    2 – JBL 1000 watt bass tube
    3 – JBL 500 watt bass tube (not recommended)

  2. sparky3489 on August 8, 2009 12:36 pm

    for real “sound” advice.

    Your system won’t mean squat without a well designed box to put your subs in. Some manufacturers have recommendations as to dimensions of various types of boxes. It is best to find someone who builds boxes if you go with something other than a sealed box.

    You should always match up RMS (Root Mean Square) watts of Subs and amp per channel as well as impedance’s(resistances).

    If your amp is rated at 4Ω don’t subject it to 2Ω, it will fry.

    Here is the formula for subs in parallel:

    Z = 1 / (1/sub1 + 1/sub2 + 1/sub3 + ….)

    For series, just add them up (sub1 + sub2 + …).

    You can mix and match these equations to get the right impedance required by your amp.

    Example: 4 subs @ 4Ω each. If I connect two in parallel and the other two in parallel and tie the two pairs in series, I would have a total impedance(resistance) of 4Ω. So to the amp, it’s just one sub.

    You should use a capacitor as well.

    Recommend for every 500 watts MAX you use a .5 Farad cap
    Example: 1000 watts MAX – 1 Farad cap

    Try you can find some really good deals, and this site is manufacturer certified. VERY IMPORTANT WHEN SHOPPING ON-LINE!!!

    You will also need what’s called a “line level converter” if your stock head unit doesn’t have RCA outputs or your amp doesn’t have high-level inputs.

    If you like I can send you some plans for reference. My plans are for a 4-th order band pass bass box that holds two 12’s. Also included are java calculators you can use to figure parallel and series values given Ω values.
    Just e-mail me

    My system

    Blaupunkt TSw1200 subs with a Sony Xplōd XM2200GTX.
    My amp is 1200 watts, subs are 600 watts each, cap is 1.2 Farad

    SPL is about 112 db

    Total cost(so far) = $410

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