keith_correa
Well-Known Member
They do add some color.
Audiolab 6000a or Marantz PM8006
- Thread starter amrutmhatre90
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Yamaha receivers have an equivalent button known as pure direct. When my receiver SMPS had gone bad I had opened it and was measuring voltages on all boards. What I found is that the power supply (5.1v and 3.3 volts to the HDMI board which has AV processing and DSP chips) is totally cut off. Also a relay switch kicks in when you press the pure direct button (you can hear the clicking sound of the relay). On Yamaha at least, I believe that the tone control is actually done using DSP rather than some analog tone control circuits. This diagram in Yamaha literature kind of confirms that the output of some analog stage gets directly passed on to the AMP circuit, rather than passing through DSP.
This is what they quote
This is what they quote
Can the PM8006 drive 4 ohm speakers effortlessly at moderate volumes ? Thank you.
I would say also depends on the efficiency. Used to drive Dynaudio Emit M20 to a good extent (lows could have opened up better)
The 8006 is not as warm as the old Marantz models...more on the warm side of neutral, but the treble has a nice airiness to it and never gets harsh or fatiguing.With specs of 5 Hz – 100 kHz at ±3 dB, I doubt the highs will be "rolled off" at levels of human hearing.
Source direct just bypasses the tone controls circuits. Why would just doing this bypass sound warm and not otherwise? This implies that the warmth comes from the tone control circuitry.
My Marantz SR7010 is not warm. It's hot. I have to place fans on top of it pulling heat out to keep it from exploding.
Are these constant impedance speakers ? As far as I’m aware impedance varies ….
Totally agree with you that impedance is not constant. But suppose you have a Dynaudio bookshelf or another 4 ohm speaker with an average of 86 db sensitivity, wanted to know if this amp can make a speaker play to its fullest potential and open it up.
According to Flux, in the thread above it feels as if it fell a little short on the lows on the Emit 20, hence my question. Cannot expect the lows of a floorstanders though from a bookshelf.
The 8006 was able to play my Elac B6 with adequate punch .. those are 87dB and 6ohms nominal impedance. It had attack , and good dynamics. It was foot tapping musical.
However , interesting bit is , only when I moved to separates , with a 120 wpc power amp by Discrete Dynamics , I understood what was missing. With more power and higher current the Elacs transformed into a different beast altogether.
I don’t know how to summarise this effectively for you. I’m sure you will be happy with the 8006 and will not feel lack of anything until you move to dedicated separates.
And I agree with flux. Lower sensitivity speakers do need higher power to go deep without bass bloat/bloom.
Thanks a lot Bloom@83 for your insightful reply. Amrut's reviews on PM8006 makes it a very tempting proposition
Would something like this be a substantial upgrade https://hifimart.com/product/marantz-mm7025-stereo-power-amplifier/Thanks a lot Bloom@83 for your insightful reply. Amrut's reviews on PM8006 makes it a very tempting proposition
Would something like this be a substantial upgrade https://hifimart.com/product/marantz-mm7025-stereo-power-amplifier/
From its specs, it should be substantial.
narenvaidee
Active Member
Maybe, it's just me - I found the Marantz 8006 to be a bit bright. Auditioned this with Monitor Audio Silver towers (sorry, don't recollect the model number) and also Tannoy Eclipse. The bass and midrange were good, but still can't get to terms with the slightly brighter presentation as I thought this will be neutral sounding. Was seriously considering the 8006, and I finally settled for a used NAD 356BEE.
Combined With the 8006 ? Yes , definitely if your speakers demand high power and less efficient (less than 88dB ).
Congratulations ! PM8006 is nice good performing amplifier. One almost always gets more wattage than specified as countrywise AC voltages vary so companies implement safe margins. In this case 80w in 8ohms and 120w in 4 ohms is measured, so should be more than enough for average levels and rooms. However not everything depends on 4 ohms. Some speakers dip below 4 ohms even if speaker manual says so. Good output power transistors and large proper transformer should handle low ohms. But nothing to worry about as these are average broad requirements.
About source direct. Few years back there was some old model which had good performace when Eq. were set to zero (Neutral) position and little tiny bit degradation when source direct is used. Forgot the model.
Pre outs are important (Two subs etc.) but most budget amplifier avoid that and give rec. out. Dont know how much companies save from this as in old days it was default provision. Another good thing is this amp uses relays for source selection in CD and Phono input section, rest is by IC.
Enjoy the amp.
Regards
About source direct. Few years back there was some old model which had good performace when Eq. were set to zero (Neutral) position and little tiny bit degradation when source direct is used. Forgot the model.
Pre outs are important (Two subs etc.) but most budget amplifier avoid that and give rec. out. Dont know how much companies save from this as in old days it was default provision. Another good thing is this amp uses relays for source selection in CD and Phono input section, rest is by IC.
Enjoy the amp.
Regards
amrutmhatre90
Well-Known Member
Are these Pre-Outs are variable and that we can connect a subwoofer? If we connect a sub will the volume change?
Asking cause the NAD 165BEE has a separate sub output, with 2 pre outs. Marantz only as one preout and no sub out.
Can confirm this, infact I feel it has rely on all inputs. Cause I would hear the rely clicking when we changed inputs.
A beautiful, well-constructed speaker with class-leading soundstage, imaging and bass that is fast, deep, and precise.
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