DRIVERS 2X 1446 VS 2X2290

Guest · Post by **Guest** » April 30th, 2006, 11:52 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.

Mr RadioActive · Post by **Mr RadioActive** » May 1st, 2006, 1:24 am

Guest · Post by **Guest** » May 1st, 2006, 1:35 am

BUMP DONT FORGET TO TAKE THE POLL :Peace!:

Phaze91460 · Post by **Phaze91460** » May 1st, 2006, 7:16 am

More is better

blackjack · Post by **blackjack** » May 3rd, 2006, 5:15 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.

bazookajoe · Post by **bazookajoe** » June 5th, 2006, 4:00 pm

the 2290 would be the best choice for the driver, best for great audio

hotrod459magnolia · Post by **hotrod459magnolia** » June 25th, 2006, 2:22 pm

i drove an 8pill with 2 2879's and it drove it wonderfully as long as you got the amps.

Post by **Maverick** » September 29th, 2006, 6:17 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....

THUMPER · Post by **THUMPER** » December 27th, 2006, 1:54 pm

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

Post by **Crusher** » January 4th, 2007, 6:10 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.
(Keep that fan going)

Post by **highdrive** » January 21st, 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...

Post by **Chainsaw355** » March 1st, 2007, 9:46 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

Post by **Mountaineer** » April 14th, 2007, 11:16 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.

Post by **Jungle Jim** » April 22nd, 2007, 1:39 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.

Post by **Skater229** » May 2nd, 2007, 1:34 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

BtyMONSTER · Post by **BtyMONSTER** » May 7th, 2007, 4:23 pm

NEITHER ,,,,,,,,,,,,,,,,,,,,,,,,
look here http://www.datasheetcatalog.c ... 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 .

Post by **Mountaineer** » May 7th, 2007, 4:35 pm

i think you meant you vote for 2879.

BtyMONSTER · Post by **BtyMONSTER** » May 7th, 2007, 5:26 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 .

Post by **Mountaineer** » May 7th, 2007, 5:30 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

BtyMONSTER · Post by **BtyMONSTER** » May 7th, 2007, 6:17 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

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

Post by **Mountaineer** » May 7th, 2007, 9:21 pm

Thats cool, my brain quit hurting...

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!!!

BtyMONSTER · Post by **BtyMONSTER** » May 8th, 2007, 12:36 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

psycho · Post by **psycho** » June 29th, 2007, 11:46 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.

Post by **tubegangsta** » July 9th, 2007, 2:06 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.

BIOHARZARD · Post by **BIOHARZARD** » October 20th, 2007, 11:05 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

CB Radio Talk

DRIVERS 2X 1446 VS 2X2290

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

DRIVERS 2X 1446 VS 2X2290

Re: DRIVERS 2X 1446 VS 2X2290