On Tue, 26 Feb 2008 10:56:42 -0800, Sonnova wrote:
> On Tue, 26 Feb 2008 08:41:27 -0800, mr.b wrote (in article
> <pan.2008.02.26.16.41.26.412981@[EMAIL PROTECTED]
>):
>
>> On Tue, 26 Feb 2008 09:41:58 -0500, jamesgangnc wrote:
>>
>>
>>> "mr.b" <mist@[EMAIL PROTECTED]
> wrote in message
>>> news:pan.2008.02.26.14.18.49.841387@[EMAIL PROTECTED]
>>>> On Tue, 26 Feb 2008 08:49:54 -0500, jamesgangnc wrote:
>>>>
>>>>>> "mr.b" <mist@[EMAIL PROTECTED]
> wrote in message
>>>>>> news:pan.2008.02.26.13.07.39.260578@[EMAIL PROTECTED]
I've seen a way to
>>>>>> "stack" my Dynaco 8ohm speakers that produces a 4 ohm load for my
>>>>>> amp, a Marantz 4240. Is this a bad idea? Should I just be looking
>>>>>> for a 4 ohm amp? I need some audio kung-fu here.
>>>>
>>>>> Why do you want a 4 ohm load? What is it you are trying to do?
>>>>
>>>> It's not that I want a 4 ohm load, it's that according to the
>>>> instructions I've found, wiring pairs of 8 ohm Dynaco A25's in
>>>> parallel will produce an effective 4 ohm load for the amp. I'm
>>>> wondering whether this is an "electrically smart" idea for the amp I
>>>> have.
>>>>
>>>>
>>>>
>>> Anytime you run two 8 ohm speakers in parallel you get 4 ohms. I'm
>>> guessing you are running it in 2 channel mode? Most amps don't have a
>>> problem with 4 ohms loads. The owners manual should mention if you
are
>>> not supposed to hookup 4 ohms to it. You do need to be carefull with
>>> that unit as it does not have output protection and may burn up the
>>> output stage if shorted. That unit has a pretty good front end but
>>> nothing outstanding about the output stage.
>>
>> No, I'm running in 4 channel mode, but I've got 8 of these speakers and
>> I'm just fooling with the idea of doing this in my 14x20 living room.
>> Each pair would be getting less than 20w but I'm not looking for
>> nose-bleed sound levels in the room...just a nice warm saturation of
>> sound. I do have the original manual for the receiver and will have a
>> look at it tonight. Thanks for the responses.
>
> You should have no problem whatsoever if you run in four channel mode.
> Some amps COULD POSSIBLY be sensitive to low impedance loads when
bridged,
> but if you're not bridging your 4240, you should have no problem
> whatsoever. BTW, are these 8 Dynaco speakers that you posses all A-25s?
I
> found the A-25 Dyna speaker to be a very musically satisfying speaker in
> it's day and had a pair for years. I don't know what I would think of
them
> now, but in the day, I really liked them.
There are 2 - A35's and 6 A-25's, the originals not the XL's.
I've owned the receiver and the first pair of A25's since they were new in
1973. My musical tastes run from the New York Dolls to Yo Yo Ma. My ears
really like the sound of these speakers at all db levels. I've tried
Heresy's, Advents, AR's, JBL's, Empire's, Sansui's...even had a pair of
LaScala's (a friends) hooked up to it once, and I'm sure many would
argue that some of those are "better" speakers, but my ear has
always preferred the Dynaco's. The 4240 seems to be a good mate for them.
I am running it in 4-channel mode.
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