Power amps

[xsdata-kc]

looking at power amps and only want to spend about Au$500 max. I have had had some limited exp with Crown power amps and was checking out the XLS 402a a .. I only need max 200 watts per side at 8 ohms and this will more than do the job.. Does anyone have any other suggestions?? What do you use to power your monitors/pa speakers??

Happy NEw YEAR!!
http://i7.ebayimg.com/02/i/02/ed/77/b3_1_b.JPG
Performance
Sensitivity (volts RMS) for full rated power at 4 ohms,
XLS-402: 1.025
Frequency Response (at 1 watt) 20 Hz to 20 kHz: ?0.75 dB.
Phase Response (degrees at 1 watt)
at 10 Hz: _ 10.
at 20 kHz: +19.
Signal-to-Noise Ratio (20 Hz to 20 kHz)
A-weighted, below rated power: > 100 dB.
No weighting, below rated power: > 95 dB.
Total Harmonic Distortion at full bandwidth power,20 Hz to 1 kHz: < 0.5%.
Intermodulation Distortion (60 Hz and 7 kHz at 4:1)fulloutputto_40dB:<0.3%.
Damping Factor (8 ohm) 10 Hz to 400 Hz: >200.
Crosstalk (below rated power)
at 1 kHz: _ 82 dB.
at 20 kHz: _ 58 dB.
Voltage Gain (at maximum output): 31 dB.

[Tomer=Trance]

how about the alesis amps
http://www.alesis.com/products/ra150/index.html
or the biger one
http://www.alesis.com/products/ra300/index.html

btw which monitors are you amplifing?

[jasedee]

btw which monitors are you amplifing?
Tis the most important question!!!!

As combining different Amps with Monitors will give vastly different results

Im afraid Im of no help here, I am using powered monitors, and just an old Technics A-Class amp for my Hi-Fi

I think the general rule is: Amp needs to be at least 1.5 times the power (in Watts) than the speakers, to allow for good headroom. Just keep that in mind.

[xsdata-kc]

Jensen SPX-9 Quad 5"2 Way Floor System :)YUp they are Hi fi speakers but they have a ten year warranty on them against overpowering !!!
http://www.bdimports.com.au/images/products/p4spx9_.jpg
D'appolito Alignment Yes
Power Handling 180 Watts RMS
Sensitivity @ 1 w/m 92 db
Nominal Impedance 6 Ohms
Frequency Response 28Hz - 21Khz
High Frequency Driver Soft Dome 25mm
Low Frequency Driver 4x5"H/Duty Driver
Subwoofer Driver N/A
Enclosure Type Bass Reflex
Tweeter Protection Yes
Magnetically Shielded Yes
Dimensions H.W.D. 1050 x 180 x 380
Colours Black, Beech, Cherry
Warranty 10 Years must register


[/quote]

[grs]

for AU$500 I'd be looking at second hand pro hi-fi amp. I bought a 'studio amp' for AU$750 but after carful listening I prefer an old Luxman amp or the like.

Best thing would be to learn about amps, buy reading heaps of technical details of the design of amps. What is Class-A or Class B or differential and negative feedback?

Good luck.

[ledge]

how about the alesis amps
http://www.alesis.com/products/ra150/index.html
or the biger one
http://www.alesis.com/products/ra300/index.html


I've got the RA300 at home and it is fantastic. I had it hooked up to a pair of Alesis Monitor Twos and it was the best sound I have ever heard out of a home setup.

[jasedee]

it was the best sound I have ever heard out of a home setup.
Thats a big call!

[Tomer=Trance]

well yeah but it sure is a nice budget set up for home studios.
i heard some geart reviews about the alesis RA amps
if your looking for something cheaper then that try the samson ones.

[jasedee]

well yeah but it sure is a nice budget set up for home studios.
Maybe so, but I definately wouldnt say it is "The best sound I ever heard out of a home setup"

[ledge]

it was the best sound I have ever heard out of a home setup.
Thats a big call!

Note where I say "I have heard" :)

maybe I haven't heard the best out there but I doubt you'd be dissapointed if you got the amp.

[xsdata-kc]

Well I made a purcahse and it was a suprise one!!!

Ended up with a STK proaudio v-6 PowerAmp that cost me a measily 350 second hand.. 200 watts at 8ohm stereo :)

http://www.thekaraokeshack.com.au/getimageLarge.php?id=54

Channels x 2 Output power @ 4 ohms: 2 x 300 Watts Cooling: Variable speed fan Power bandwidth: 20Hz - 20kHz Frequency Reponse: 20Hz - 30kHz THD: 05% S/N Ratio >100dB Rack space: 2U Weight: 33lbs

I didn't expect to buy this but I was in the right place at the right time :) thanks for the info, I did look into samson and alesis and they both seemed to be good amps .. :D

[Gopal]

Get a Bryston!

They are by far the best solution :)