Question about Marantz SR-6300 Receiver

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I run 4 ohm speakers through a marantz sr7001 amp and it keeps overheating can you help?

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ALL 4-ohms per speaker? If you ran the A's and B's together you'd have at most a 2-ohm load.

It's not even spec'd for 4-ohms. You're running it on the hairy edge of self-immolation.

http://www.retrevo.com/support/Marantz-SR6300-Receivers-manual/id/511dj785/t/2/

Posted on Jan 04, 2011

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Can i hook up 4 8ohm speakers to my marantz 2252b


You can but you will have to put two speakers on the main L/R and two speakers on the remote L/R. DO NOT HOOK UP MORE THAN ONE SPEAKER TO A CHANNEL. Doing so can result in the amp running hot and damage will occur.

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Keep blowing amps and high voltage output voltage please help


If your amp keeps blowing then you need to check your speaker set up, as its very possible that you have a blown speaker somewhere, or a couple of wires shorting together and that is causing the amp to overload... also check the ohm's of your speaker set up, remembering that:

Two 4 ohm speakers wired in parallel = 2 ohm whilst
Two 4 ohm speakers wired in series = 8 ohms

Car amps are rated at 4 ohms and failure to match speakers to this can cause amps to run very hot or blow.

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1 Answer

I have a marantz sr 7001 amp and am running canton 4ohm speakers to front and centre should my amp get really hot and go into protect mode when I am giving it some serious volume


it is not made to drive 4 ohm loads.also if you measure the impedance on the speaker,at some frequencies,it is closer to 3 ohms.This will cause the amplifier to shut down.Today's amplifiers are embellished specs.the old marantz 2325 was 125 watts a channel and weighed 80 pounds.It would eat alive some of the 1000 watt home theater amps of today.Marantz is very nice stuff.

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1 Answer

Just got two AR 312 HO speakers from my brother. I have a Yamaha HTR 6250. The speakers have (2) sets of cable hook up. One I assume is for built in sub woofers? Do I hook one normal and one to the sub...


do not use those speakers with that amp, those are 4 ohm speakers, which could damage your 8 ohm yamaha amp. you will have to get a 4 ohm capable amp to run the highs, and another 4 ohm amp to run the subs.

car amplifiers are currently 4 ohm, or even 2/1 ohm stable, but few, if any modern receivers can run at anything lower than 8 ohms without a danger of overheating. you may have to get a vintage amp(s), like a 1970's marantz receiver, or a 1980's to early 1990's kenwood power amp, because 4 ohm home amps are pretty scarce nowadays.

whatever amp(s)( you get, verify that they are DEFINITELY 4 ohm stable.

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1 Answer

Over heating


Have you changed the speakers? Usualy an overheating amp means the resitance on the speakers is too low. If your amp is only 4 ohm stable, and you have two 4 ohm speakers hooked together, you are running a 2 ohm load. Hope this helps.

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Marantz 2220B with Sound Problem at Half volume


The most likely cause of this is some DC current working its way through the system. WIthout taking some measurements, it will be difficult to confirm this though. This should not be an expensive repair. Figure on $20 or so for parts (capacitors mostly).

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How would i conect a ep2500 amp two 2 subs @ 4 ohms, or 8ohms


hey" i got 2 behringer 2500 amps and i have 2 peavey speaker that are 4 ohms 2000 watts eachand want to mono the amp separte,and i want to run 1 amp to each speaker so can you help me?

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1 Answer

Vintage Stereo Connection ???


Hi spanky

Where to start :) I am excited thinking about them :p You got 2 totally cool pieces of classic vintage gear there in the C2 and the Marantz. I have a C2 preamp myself (gathering dust but wont sell it cos its excellent) and the marantz would be totally cool to have(but then I am a little biased towards 70's vintage marantz). They ruled the roost in HiFi amps throughout that decade.

Because they are both integrated amps, you could use them as standalone systems with a pair of speakers, and just plug your favourite gear into them. If you just wanted to run up a nice sounding HiFi, I would sell the kenwood gear and just keep the Marantz. The Kenwood kr1100 has the edge in power, so if it is grunt you are looking for use that. Because vintage sound is all about stereo, you only really need an integrated amp to get great results.

the specs are
# Kenwood Model Eleven G (KR-11000G) Receiver
120W per channel min RMS, both channels driven, at 8 ohms from 20 to 20.000 Hz with no more than 0.03% total harmonic distortion.
Dynamic power output 440W at 4 ohms
Power bandwidth 5 Hz to 70.000 HZ
Frequency response 5 Hz to 100.000 HZ -1.5dB
Signal to noise ratio 115dB

The marantz is a little lower in power at 75rms a channel, but will have the sonic edge in vintage sound over the kr1100. Look them up on ebay and you will find that they do have some value to collectors and people seeking nice tone. There is an 1152 for sale here for AU$900

Best bet is to fire up the 2 integrated amps,and see how they are going. Run them for several hours to be sure there is no strange noises and crackles. Then decide if you want power or finesse.

You could also run both amps from the C2 preamp by connecting to the Amp in connections to the rear of the integrated amps.

happy to talk to you more about it, hit me with a Fixya if my advice was helpful to you. I would keep the marantz, use that and sell the rest and buy some nice speakers:)

regards
robotek

Jul 20, 2008 | Audio Players & Recorders

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