10 replies to this topic

[Archades]

Newbie here looking for an amplifier recommendation for 2 pairs/4x hertz HSK-165 6.5 comp split that are 125watt rms.
Budget is 2-400ish AUD. It seems 4ch 100watt RMS @ 4 ohm amps are about the 250 mark, 4ch 125watt RMS (or higher) @ 4 ohm are 4-500 AUD mark.

Also any features in particular I should be looking out for an amp? Should I be getting an amp rated higher than my speakers, say 150watt?

Thank-you

[jamiebosco]

I have one of these,works fine and it'll do the job

http://www.soundmast...r/KSAR8004D.asp

Here's Damon's review

http://www.mobileele...nnel_amplifier/

jamie

[shiny_car]

Unless you're after ear-piercing loudness, you'll find they should be more than loud enough with an amp capable of 50WRMS per channel. So you could add such amps to your list.

Bang for buck, Jaycar/Response are top value. But you could look at Clarion, Pioneer, etc.

[Archades]

Thanks. I've read articles suggesting matching amplifier to 100-150% of the rated RMS handling for the speaker, which seems contradictory to the 50watt RMS suggestion?

I've tested them on an olddd amp that is bridged for 100wRMS however it distorts quite a bit when high and seems to be clipping. Basically the goals for my system were nice kick to the chest from these speakers if possible but also decent sound quality across the range of course. Basically www.youtube.com/watch?v=Qc76wMHYy_g The kick drum in that video.
Will the 6.5's add much to that or will subs handle most/all of that? The car it's all going into as well is a Ford Falcon AU II sedan to get an idea of space,etc.

[shiny_car]

Archades, on 28 January 2012 - 03:37 PM, said:

Thanks. I've read articles suggesting matching amplifier to 100-150% of the rated RMS handling for the speaker, which seems contradictory to the 50watt RMS suggestion?

This is ideal if you can afford it. For the quality of the HSKs, if you want an amp capable of 150WRMS/ch, then look to spend around $600~1000 (eg: Alpine PDX-F6, Hertz HDP4).

For your budget, either go with a bang-for-buck powerful amp, or accept lower power.

[justdofit]

I've run my HSKs off 90W per side and now 180W per side (active). Perhaps I'm just showing my age but even off 90W they got very (very) loud and stayed clear until the head unit clipped (@ 3/4 vol).

With 2 sets of splits (on equal power) I could only imagine your ear drums would pierce before distorting the speakers

[Archades]

Ahh. Shall try a diff test amp to see if it makes a difference in loudness. The one I tested is pretty damn old. Alpine pdxf6 is 600 so I may save up some more pennies and hopefully should last many years. That amp should definitely handle them fine and have decent quality?

[justdofit]

The F6 is a quality amp and has plenty of power to get loud

[Archades]

Amp arrived today, still waiting on second pair of speakers. Alpine test sheet says it hits 170w RMS fine:O Have 2 of the speakers in the front doors without dynamat and air leakage (gotta cover some holes in the skin) and OMG HOLY LOUD and punchy as hell. Thank-you for the amp suggestion, it's insane and I love the cable connectors.

[Tiger]

Tough amps, the F6 Good to hear the setup puts a smile on your face.

[Archades]

Just a quick update. Running a Brutus 1700.1 amp (running@1200w RMS for the subs) + 2x swr-1243D subwoofers in a sealed 1.15ft3 enclosure, the system sounds very nice now. Put DB-Kill (butyl based sound deadener) on the roof, doors, parcel shelf, boot floor and boot lid and it helped dramatically with the clarity in bass and I think it even hits a fair bit harder now.

Thanks again for the recommendation on this amp.