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DRIVERS 2X 1446 VS 2X2290

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Which would you want for a 2pill driver for a 8pill amp

2x1446
55
22%
2x2290
194
78%
 
Total votes: 249

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DRIVERS 2X 1446 VS 2X2290

Post by Guest » Sunday, 30 April 2006, 22:52 PM

Which would you want for a 2pill driver for a 8pill amp 2x1446 or 2x 2290 with a duel final radio

the data sheet for the 1446's shows 7w drive for 70w out on 50mhz and 5w drive for 90w out at 30mhz. the 2290 is 2.5w drive and rated at 80w

I was told that with the 1446 it will swing better than a 2290 but it may get hot with a duel final radio


any input appreciated.
Last edited by Guest on Monday, 01 May 2006, 1:05 AM, edited 2 times in total.



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Post by Guest » Monday, 01 May 2006, 0:35 AM

BUMP DONT FORGET TO TAKE THE POLL :Peace!:

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Post by Phaze91460 » Monday, 01 May 2006, 6:16 AM

More is better
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Post by blackjack » Wednesday, 03 May 2006, 16:15 PM

how much output power are you looking for
what kind of amp is it. . a good amp will take a 3 pill amp to drive it.
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Post by bazookajoe » Monday, 05 June 2006, 15:00 PM

the 2290 would be the best choice for the driver, best for great audio :mrgreen:
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Post by hotrod459magnolia » Sunday, 25 June 2006, 13:22 PM

i drove an 8pill with 2 2879's and it drove it wonderfully as long as you got the amps.
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Post by Maverick » Friday, 29 September 2006, 17:17 PM

2290's I think SD1446 pills are actually great for 2 pill boxes, but for a driver, In my opinion the 2290's audio has always been far superior when used as a driver. I dunno why....

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Post by THUMPER » Wednesday, 27 December 2006, 13:54 PM

I USE A 1X2 FOR A DRIVER 1 1446 X 2 2879



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Post by Crusher » Thursday, 04 January 2007, 18:10 PM

I usually like the 1446's. They are a bit cheaper, Get more power out of a 2 pill. But they do not like higher voltage as the transister is physically smaller and has to dissipate more heat on a physically smaller mount.
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Post by highdrive » Sunday, 21 January 2007, 11:39 AM

Well...the 1446's do have more audio do to most amps having a low key big swing potential. But the downside is dissipating heat and high voltage breakdown. I'll have to say stick with the 2290's even though that dual final radio is going to be pushin those pills like a mothe@#$@! Try to keep radio dead key kinda low and swing up. Then let your driver do the rest...

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Post by Chainsaw355 » Thursday, 01 March 2007, 21:46 PM

my homemade box in my truck is 1 2290 drivin 4 2879 it works the best for me, i've used both. i also have a 2pill 1446 box that does good by itself its in my wifes truck both are dual final radios

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Post by Mountaineer » Saturday, 14 April 2007, 22:16 PM

GO here and look at all the specs. There are more transistors to choose from then the few forementioned. The inputs and outputs and voltages are what you are looking for; along with the frequency drop off (range).

RF PARTS TRANSISTOR SPECIFICATIONS CLICK HERE

Transistor_______________ Power Out _____________Power In_____________ dB Gaini
SD1446 ....................................90 ....................................5................................... 13
2SC2290 ..................................80 .....................................4.................................. 13
2SC2879................................. 120..................................... 7 .................................15


For a Driver the 2290 is going to dissipate more heat, drive the 2879's better with lower more stable watts, and require less watts from a small single final radio (cobra, uniden) but maintain the 13 dB gain like the 1446.
There is no contest the winner of the driver is 2290!

But if you want to drive your amp like a mother *%(&#@, go with the 2879. I get praise everytime I key down on my (1)2879 X (2)2879.

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Post by Jungle Jim » Sunday, 22 April 2007, 0:39 AM

What really works the best for, say your mobile, is starting with what you have driving the amp. Not the one, or two driving the two, six, eight, or whatever... amp. I'm starting with the radio. Does it key at 1-4 watts,(or whatever) and swing to 20, 40 50. Maybe more??? If you want a amp that will work great with your radio, than you need to know the specs. Then the amp selection gets narrower. I know that most of you probably know this, but don't expect a match to your radio(as far as amps go) to just be a buy it and go option! Quality builders will need to know just what you not only plan to do with it, but what you are driving it with. Remember, the first driver is your radio. That's most likely than not why there are so many transistors out there. Yes it is complicated. But kinda simple at the same time. Remember this. If you ask your builder, and it's OK to ask all out there what (and you should) will work the best for your radio. You should end up with a really good system! Jim.

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Post by Skater229 » Wednesday, 02 May 2007, 12:34 PM

THUMPER wrote:I USE A 1X2 FOR A DRIVER 1 1446 X 2 2879
I run the same thing... or did until my system got trashed... but will put the boxes in something else... so it will key again someday soon...

Skater

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Post by BOOTYMONSTER » Monday, 07 May 2007, 15:23 PM

NEITHER ,,,,,,,,,,,,,,,,,,,,,,,,
look here http://www.datasheetcatalog.com/datashe ... 2879.shtml
the 2sc2879 requires 6 watts typical and 10 watts max for rated output of 100 watts @ 28mhz (28mhz = 10 meters...27 mhz = cb channels)
so 8 pills x 10 watts max drive is 80 watts . but those pills can be slightly over driven and still have pretty good results . so 100 to 125watts will drive them nicely without the heat and distortion and MTBF . i vote for 1 x 2290 ......or a radio with a solid 100+ watt output .

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Post by Mountaineer » Monday, 07 May 2007, 15:35 PM

i think you meant you vote for 2879.

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Post by BOOTYMONSTER » Monday, 07 May 2007, 16:26 PM

no offense but my opinion is 1x 2sc2290 .
that MY OPINION . but remember..........opinions are like butt holes , everybody has one lol
ive certianly been guilty of stinky opinions in my life .

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Post by Mountaineer » Monday, 07 May 2007, 16:30 PM

I dont understand your post at the top of this page. You started out saying neither??? THen mentioned the 2879. and it would push them nicely. Why is it now you say 2290? I am confusticated :? :lol:

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Post by BOOTYMONSTER » Monday, 07 May 2007, 17:17 PM

the choice was 2x1446 or 2x2290 . i say 1x2290 ...... i feel 2x2290 or 2x1446 creats too much drive and over heats the amp as well as increasing its harmonic distortions .
i hope i unconfusticated you :lol:

thanks for pointing out that i needed to clarify that mountaineer :D

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Post by Mountaineer » Monday, 07 May 2007, 20:21 PM

Thats cool, my brain quit hurting... :lol:

If you need a driver that will run about 100-125 for that many pills wouldnt a single 2879 be the PERFECT candidate? The radio creates the swing. If your radio doesnt swing an amp isnt going to help with audio a whole lot. I have read people saying that the amp really makes the radio swing... I just laugh and attempt to help them understand that the swing of the radio is what drives the transistors. I can set dead key on my amplifier 3 pill all 2879's to do about 75-100 watts and it STILL swings up to 450 PEP!!!

PEP has more to do with modulation percentage than it does dead key. This means if you have a killer radio the amp is going to do its job and give you good numbers. If you have a crappy little 19 series Cobra (my bench tester) it will only get that amp to about 350 watts PEP and the dead key will be way high! SO back off the amps variable to keep your DK low and let that puppy swing!!!

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Post by BOOTYMONSTER » Tuesday, 08 May 2007, 11:36 AM

im kind of weird Mountaineer , i dont see the need to drive an amp to death to get every watt of of it that i can . that only creats heat , distortion , and off freq. harmonics .most of that so called extra power is off freq. harmonics that is not recieved by the person youre talking to because its off frequency . those 8 pills are rated at 6 watts each for the input level and 10 watts max......MAX . 8 x 10 = 80 . so 100 watts is plenty to get all the CLEAN watts they can get . yes they can do a lil more than rated and there usually do about 150 clean watts each so 8 would give you about 1200 watts . sure you can push it to almost 2000 watts but its probally less than 1400 or 1500 on freq watts and with a lot of distortion and even if it were 2000 clean watts on freq. nobody will know the difference between 1000 and 2000 watts when they recieve your signal .and for all that you get...........
no positive effect on the recieving end of your signal .
modulation that isnt as clear and understandable .
a lot more heat to disipate . ( heat is not any electronic components friend.................unless it is a tube)
and as icing on the cake down the road ...... a shorter MTBF ( which means it will be much sooner that you get to spend money reparing/replacing the amp )

wow...got off track here . but yes youll be ok with 1x2879 as a driver .
good luck

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Post by psycho » Friday, 29 June 2007, 10:46 AM

Either 2x1446 or 2x2290 drivers would be OK. An 8 pill would be seriously loafing with either configuration but just for talking or shooting skip that's all you need. For keydown competition a 3 pill driver is the only way to go.

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Re: DRIVERS 2X 1446 VS 2X2290

Post by tubegangsta » Monday, 09 July 2007, 13:06 PM

[quote="Anonymous"]Which would you want for a 2pill driver for a 8pill amp 2x1446 or 2x 2290 with a duel final radio

the data sheet for the 1446's shows 7w drive for 70w out on 50mhz and 5w drive for 90w out at 30mhz. the 2290 is 2.5w drive and rated at 80w

In reality, you woulden't see much, if any differance between the two.

I was told that with the 1446 it will swing better than a 2290 but it may get hot with a duel final radio

If you are going to use a dual final radio, I would use a (2) 2879 box for a driver.

any input appreciated.

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Post by BIOHARZARD » Saturday, 20 October 2007, 22:05 PM

2-2290's is a 300w peak drive ...
2-2879's is a 400w peak drive ...

2-1446's of what ive seen ?? is Just a 2-2290 amp box with 2-1446 pills in it instead..???
anyway...

for a 8-pill configuration...And you want an internal driver in it ??
Get the 2-2879's in it for a driver stage!
and use a radio that will do no more than 40w peak for
a drive into the amp... like a single final Cobra or a Uniden radio...

BIOHAZARD

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Post by LoganBurryCourt » Monday, 12 November 2007, 21:07 PM

It depends on how clean you want to run the 8 pill . Go to toshiba's site and look up the pdf on the 2sc2879 . You will see it only requires 6 watts typical for it's full 100 watt PEP rating and 10 watts max input recomended . There is some headroom above the 100 watt rating thus the 10 watt max input . A single 1446 or 2290 or 2879 with a typical radio will be plenty of power to get all the clean watts the eight 2879's are capable of . A high powered radio like a 2970DX with a sweet 16 would make a very clean and awesome setup . Providing more drive than that is inviting intermodulated distortion and harmonics to distort the signal and bother neighbors .

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Re: DRIVERS 2X 1446 VS 2X2290

Post by paqratt » Saturday, 03 May 2008, 19:08 PM

I voted for the 2290 pills because you didn't include 2879's in the options. A dual final radio is really too much drive for either two 1446's or 2290's. the 2879's would be the better choice for your application. just my oppinion.73's.

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Post by djrebel236 » Wednesday, 04 June 2008, 2:37 AM

my radio at 2 wattz with the 1x1446 to drive the 8 pill...Dj
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Post by slydog » Wednesday, 04 June 2008, 5:44 AM

BOOTYMONSTER wrote:no offense but my opinion is 1x 2sc2290 .
that MY OPINION . but remember..........opinions are like butt holes , everybody has one lol
ive certianly been guilty of stinky opinions in my life .
You are saying the best driver for an 8 pill would be 1x2290???????????? :roll:

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Post by Bushwacker5454 » Thursday, 19 June 2008, 19:06 PM

This is kinda an old thread already... but it interested me.

This is just my opinion and somthing I have noticed from experience.
I think the 2290's would sound better.... This will most likly stir up some responses..... but I have noticed that the larger case style pills seem to sound a little "richer"...I just personally find that there is a difference even though there should'nt be.
So for that reason I would go with 2x 2290's but driven lightly.
I guess it also depends on what 8 pill amp were talking about..... an *Censored* amp like a Skull I would driver harder.

2 x 2290 should be ok as long as you control the output and don't excite it too much

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Post by Beercanman » Tuesday, 02 September 2008, 15:19 PM

If you try to run a 2x1446 box with a duel final radio you will fry the box in no time. You need about a 2.5 watt dead key for those little pills. Go with the 2x2290, you can run about 6 watts into that box and it will drive that 8 pill just fine.

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Re: DRIVERS 2X 1446 VS 2X2290

Post by SARGE » Tuesday, 17 February 2009, 21:28 PM

I called world wide a few weeks ago on the same issue, 2290's vs 2879's on a 2 pill box for a driver with the 8 pill using a dual final radio. WW recomended that I go with the MF-200 (2879s). I just hope they know thier stuff so I dont go spending money on an a box I dont need!

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Re: DRIVERS 2X 1446 VS 2X2290

Post by 127 » Tuesday, 03 March 2009, 18:20 PM

Personally if I had an 8 pill high drive amp, 2x2290 is what I would choose.

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Re: DRIVERS 2X 1446 VS 2X2290

Post by Alien Abductor » Thursday, 19 March 2009, 12:28 PM

if you have the option to deadkey low into your driver, a 1446 will sound better and actually push harder than a 2290. Bring on the hatemail (only if you have worked and done testing with both :king: )

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Re: DRIVERS 2X 1446 VS 2X2290

Post by popcorn » Thursday, 19 March 2009, 17:34 PM

I like the 2290 pills for driver alot better than 1446.

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Re: DRIVERS 2X 1446 VS 2X2290

Post by 127 » Sunday, 29 March 2009, 15:24 PM

SARGE wrote:I called world wide a few weeks ago on the same issue, 2290's vs 2879's on a 2 pill box for a driver with the 8 pill using a dual final radio. WW recomended that I go with the MF-200 (2879s). I just hope they know thier stuff so I dont go spending money on an a box I dont need!
I have a MF-200 and it would be a perfect driver for an 8 pill. Some like 3 pill drivers but in my opinion that is too much drive for everyday use.

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Re: DRIVERS 2X 1446 VS 2X2290

Post by While Wolf » Friday, 17 April 2009, 11:09 AM

1446 all the way

I run a 2x6 custom built amp that screams. (2) 1446 driving (6) 2879s

From 100 watt dead key it talks 800-1000 all day and pep out to about 13-1400. Thats at 14 volts

Everyone praises me for how loud everything is. Works for me!

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Re: DRIVERS 2X 1446 VS 2X2290

Post by MysteryMan » Monday, 08 June 2009, 12:12 PM

I just had to pop in and say.... I still like Tube Amps! So much better audio and Swing. Ok-ok. for get about the downsides. Don't you just love the smell, crackling of the tubes and the vibration of the energy. the massive relays Go "CLICK" ! The glow you get to light up a dark room. That beautiful sound it produces when you give it a whistle to tune it. Even the big switches and knobs give it a power all on it's own.

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Re: DRIVERS 2X 1446 VS 2X2290

Post by linearone » Tuesday, 09 June 2009, 6:33 AM

two pages of posts for a thread asking about a 2 pill? really?
Its CB radio, plug and play technology, its just not that hard folks...



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Re:

Post by 127 » Monday, 29 June 2009, 14:38 PM

im kind of weird Mountaineer , i dont see the need to drive an amp to death to get every watt of of it that i can . that only creats heat , distortion , and off freq. harmonics .most of that so called extra power is off freq. harmonics that is not recieved by the person youre talking to because its off frequency . those 8 pills are rated at 6 watts each for the input level and 10 watts max......MAX . 8 x 10 = 80 . so 100 watts is plenty to get all the CLEAN watts they can get . yes they can do a lil more than rated and there usually do about 150 clean watts each so 8 would give you about 1200 watts . sure you can push it to almost 2000 watts but its probally less than 1400 or 1500 on freq watts and with a lot of distortion and even if it were 2000 clean watts on freq. nobody will know the difference between 1000 and 2000 watts when they recieve your signal .and for all that you get...........
no positive effect on the recieving end of your signal .
modulation that isnt as clear and understandable .
a lot more heat to disipate . ( heat is not any electronic components friend.................unless it is a tube)
and as icing on the cake down the road ...... a shorter MTBF ( which means it will be much sooner that you get to spend money reparing/replacing the amp )

wow...got off track here . but yes youll be ok with 1x2879 as a driver .
good luck
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Re: DRIVERS 2X 1446 VS 2X2290

Post by Sheriff Bart » Monday, 29 June 2009, 16:32 PM

...hands down the 2290's are the best option between the two choices....but if you want to ' run it in the red until it's dead ' go with the 1446's...you will sacrifice audio with the 1446's though.


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Re: DRIVERS 2X 1446 VS 2X2290

Post by Northwoods35 » Wednesday, 15 July 2009, 21:36 PM

1446's seem to be good inline as a straight pill box and a 2290 is a better driving pill to use in general. Even though they are more expensive obviously. As you probably know, the 2290 will take much more punishment whereas a 1446 will blow under extreme load circumstances. Personally I think that 2290's driving 2879's are a better combination.
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Re: DRIVERS 2X 1446 VS 2X2290

Post by Wpdriggs » Friday, 20 November 2009, 17:36 PM

I have a Glaxy DX 959, with a Fatboy 300 watt linear, prior to the linear i had an SWR of around 1, now that i have added the linear.. with the linear off i have above 3. with the linear in high i have around 1. and at low i have around 3. Should i adjust my swr and how? With linear off? in high or low? and should i use the intrernal SWR meter?

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Re:

Post by -=PEAKABOO=- » Monday, 30 November 2009, 23:53 PM

blackjack wrote:how much output power are you looking for
what kind of amp is it. . a good amp will take a 3 pill amp to drive it.
Not really true. A 3 pill amplifier is a dirty design because of the amount of drive put into the 2 final pills.
I would drive the 8 pill with a 2x 2SC2879 driver with a variable. Yeah you could drive it with more but the only thing it will change is your watt meter, the signal meter on a receiving is not going to increase from a going from a good 2x 2SC2879 driver to a 3 pill.
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Re:

Post by -=PEAKABOO=- » Monday, 30 November 2009, 23:56 PM

bazookajoe wrote:the 2290 would be the best choice for the driver, best for great audio :mrgreen:
The "pills" your are using does not really make your audio any louder, that is a myth.
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Re:

Post by -=PEAKABOO=- » Tuesday, 01 December 2009, 0:14 AM

Mountaineer wrote:Thats cool, my brain quit hurting... :lol:

If you need a driver that will run about 100-125 for that many pills wouldnt a single 2879 be the PERFECT candidate?
Or a 2 pill design with a variable so that you can attenuate the input and keep the driver and the final amplifier clean.
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Re: DRIVERS 2X 1446 VS 2X2290

Post by drdx » Tuesday, 01 December 2009, 10:11 AM

Wow, this is an ancient thread, but with a dual final radio, why would you need a driver for an 8 pill? If that radio does, for example, 48 watts, that's 6 watts drive per pill, and it is loafing and sounding good. The difference that amp will put out between low driving it with 6 watts per pill and driving it with a full blown 2 pill amp may be siginificant, let's say it doubles the output, maybe. That's only half an s-unit, and a lot more heat and wear and tear. Is it really worth it? If the radio does more than 48, the margin is thinner than that. More signal variance than that is seen with terrain changes while mobiling. Am I crazy here? If you're worried about that close of a power margin, just double your pill count and drive it adequately. Go as large as you want with and amp first and you'll save in the end, by not losing money on upgrading and by not having to push what you have. Want a clean kw? Don't think 8 pill. I don't know about you guys, but I like my signal to be as much as possible on the same channel I'm listening on. Unless you just like overdriving and bleeding, all of that spread out power does you no good, and that's what you'll end up with by trying to cram 20 watts of drive per pill into an amp that will work fine on a third of that.

If you really want to know, get an amp, and increase the drive into that 8 pill and you'll se where it flat tops, and levels out. Then, you'll know just how little these amps need to work well. You're talking to people, not that needle.


-drdx
Yes it's me, Dollar-98, drdx, the original all *Censored*, shot cawla on workin this no-fade technology.

-drdx



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ny221 8pill
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Re: DRIVERS 2X 1446 VS 2X2290

Post by ny221 8pill » Saturday, 06 March 2010, 12:10 PM

someone said it all right a few posts up from mine. no need to push the transistors hard... xtra heat is NOT good and is your amps worst enemy!! and the main thing is start with your radio. you need to know exacly what your radio does dk and real swing, and not no crazy my radio swings to 50 watts b...s....,they are all good transistors for driving, yes the 1446 get hot and are harder to cool do to surface area, but if u r not gunna drive them to hard they are great. so are the rest. so start with the radio and knowing what it does and take it from there. and dont over drive things. good luck. ny 221
Last edited by BushHog on Saturday, 06 March 2010, 14:31 PM, edited 1 time in total.
Reason: naming a ex member that doesnt need to be

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AdamHo
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Re: DRIVERS 2X 1446 VS 2X2290

Post by AdamHo » Monday, 21 June 2010, 2:12 AM

I have a Palomar 225 blue face that fell victim to an electrical storm. :evil: Amp started popping and got extremely hot even while turned off. I unhooked the power and it cooled off. hooked back up, power switch off and found both pills getting hot, heat sink got hot real fast. So...i went online and bought a black face palomar 300 elite. While this is a cheap amp, it is upgraded to 2290 finals and is a high drive. I run a Galaxy dx99v which has been modified. On low power it DK 5 watts and swings 20+ (High power DK 50 watts and swings very high) Needless to say there was 18 new parts put in this radio. Im pretty satisfied with the radio itself but just like that extra lil boost. The question is, will the black face Palomar handle the 5 watt DK with no prob and is the upgraded model going to have distorted audio on SSB like the older models did? And...what is your opinions on the Palomar 225 model? What would cause the finals to heat so much with the power switch off? I feel the electrical storm was the issue. Do I need to replace the finals? Did the 5 watt DK do this? Had not been transmitting on the amp for several hours before it made the popping noise. Kinda liked that lil amp too!! :pale:
Thanks guys!

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Re: DRIVERS 2X 1446 VS 2X2290

Post by eGroupSales » Friday, 16 July 2010, 13:56 PM

Well, since they don't make the 1446's any longer, maybe the 2290's are the right choice. Heck they won't have those much longer either. I'd go with the MOSFET amps. FET450HD is my choice. Hopefully, they'll come out with a single ERF7530 to drive the four ERF7530 MOSFETS in the FET450HD. This way you wouldn't need a Texas Star modulator, a Connex 4300, Galaxy 94 or a Ranger C1 to drive it. It would be nice to drive it with a Galaxy 33HML. The amp takes a 20 watt dead key if you want it to, though it gets pretty hot with a 20 watt dead key and 100 watt swing. I normally run mine with my Galaxy 93T at a 5 or 10 watt dead key and a 90 watt swing. :rambo:


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