| Author |
Message |
    
Mayor513
Member
Username: Mayor513
Post Number: 54
Registered: 3-2002
| | Posted on Saturday, March 25, 2006 - 10:47 pm: | 
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--Hi, all. I am looking for an amp with a bit more power. I have narrowed it down between the two amps in the subject line. Both have the same finals (4 - 2SC2879) but the 667V supposedly puts out more power (500 watts for the DX500 VS 750 watts for the DX667V) Why the big difference in output power? The final transistors are only rated for about 120 watts each, so I don't understand why the 667V would put out 750 watts unless you were stressing the finals? There is a $100 price difference, so I am curious if the 667V is really going to be that much more powerful. I will only be running a 4 watt radio to drive it. What is your suggestion on these amps to buy...and why? Thanks. |
Road_warrior
Senior Member
Username: Road_warrior
Post Number: 1294
Registered: 7-2004
| | Posted on Sunday, March 26, 2006 - 8:37 am: |
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The texas star 667V has 1 2SC2290 driving
4 2SC2879's. Wait for Pat to chime in as
he knows alot about these Amps. |
Moonraker
Intermediate Member
Username: Moonraker
Post Number: 187
Registered: 3-2005
| | Posted on Sunday, March 26, 2006 - 10:30 am: |
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If you are only using a 4 watt radio, I would go with the 667. It already has the driver built in and you don't need as much power going in to get the most power out. The 500 can do just as many watts as a 667 it just takes more drive. |
Mayor513
Member
Username: Mayor513
Post Number: 55
Registered: 3-2002
| | Posted on Sunday, March 26, 2006 - 1:10 pm: |
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--Thanks for the input. I have some more questions though. Aren't both of these amps just regular 4 watt input amps? I didn't see "HDV" designation after the model number. Just making sure. I went to the Texas Star website and it seems to me that all of their amps can take as much as 20 watts input but are not advertised as "HDV". If that is the case, why are some advertised as "HDV" if they ALL take 20 watts input (according to the Texas Star website)? If they can all really take as much as 20 watts, that's great, but if not, I need to make sure in case I ever have a radio that puts out more power. Thanks.
PS
I may just go with the 667V |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 2627
Registered: 7-2004
| | Posted on Sunday, March 26, 2006 - 5:08 pm: |
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if you are looking to use your general sherman, mayor, go with the dx667v. as with most amps, TS is a bit generous as well as some wishful thinking. dead key 2-3 watts from the radio to get about 125 or so dead key from amp. up to 20 watts max PEP swing from radio into the amp & you'll see 400-500 PEP swing out. the dx500 MAY show somewhat less with the sherman, but it is designed to not burn up with up to 10 watts dead key & 40 watts PEP input. however, it too should be set up the same way as the 667-input set for 125 key, swing(by way of mic gain)set at 500 or as close as you can get it with up to 40 watts in. |
Mayor513
Member
Username: Mayor513
Post Number: 56
Registered: 3-2002
| | Posted on Sunday, March 26, 2006 - 5:57 pm: |
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--Hey, thanks, Pat and Moonraker. Yeah, I am going to use my General Sherman. I got in that Autek WM1 meter a few days ago, and I just love it. I set up my General Sherman to DK 3 watts on the "home" channel, and PEP is right at 12 watts. It turned out that the radio had forward swing all along, it just never shows it on my non peak reading wattmeter. You think the above setup will work ok with the Texas Star DX667V? If so, I will probably just get it then. Thanks again. |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 2630
Registered: 7-2004
| | Posted on Sunday, March 26, 2006 - 10:11 pm: |
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667v & sherman are a match made in heaven...just don't expect 750 watts or 667, 500 should be real close  |
