marantz pm8005 upgrade to abrahamsen 2up

[Vladimir]

Are you using balanced XLR or unbalanced RCA interconnects?

The input sensitivity is 600mV on RCA and 300mV on XLR. The Marantz PM8005 is 200mV.

 

[Blacksabbath25]

Are you using balanced XLR or unbalanced RCA interconnects?

The input sensitivity is 600mV on RCA and 300mV on XLR. The Marantz PM8005 is 200mV.

i am using balanced XLR as i am useing the Abrahamsen 1 up cd player

 

[radiorog]

Im not sure.its not what I am led to believe from other posts on this forum.
Can anyone validate which would be louder please?

 

[Blacksabbath25]

I have tried both XLR & RCA and I can not tell which is better but I stuck with XLR anyway

 

[gasolin]

ok just find out they are 4 ohms speakers but got confused as the shop says were i got them from says they are 8ohms but go to 4 ohms when adding more speakers ?

You have 140 watt pr channel in 4 ohm no need to upgrade to only 250 watt unless it's in 8 ohm and it has better sound

 

[gasolin]

Im not sure.its not what I am led to believe from other posts on this forum. Can anyone validate which would be louder please?

It's an easy question 4 ohm is louder then 8 ohm if sensitivity is the same as well as the amp

 

[Blacksabbath25]

ok just find out they are 4 ohms speakers but got confused as the shop says were i got them from says they are 8ohms but go to 4 ohms when adding more speakers ?

You have 140 watt pr channel in 4 ohm no need to upgrade to only 250 watt unless it's in 8 ohm and it has better sound

i was not going to upgrade to 2 power amps or one some how i got carried down the river with all this comments lol it might be something i will do in the futrure but not now i love what i got

 

[gasolin]

ok just find out they are 4 ohms speakers but got confused as the shop says were i got them from says they are 8ohms but go to 4 ohms when adding more speakers ?

You have 140 watt pr channel in 4 ohm no need to upgrade to only 250 watt unless it's in 8 ohm and it has better sound

i was not going to upgrade to 2 power amps or one some how i got carried down the river with all this comments lol it might be something i will do in the futrure but not now i love what i got

Using any dac?

Is you cdplayer a sacd player?

 

[Blacksabbath25]

ok just find out they are 4 ohms speakers but got confused as the shop says were i got them from says they are 8ohms but go to 4 ohms when adding more speakers ?

You have 140 watt pr channel in 4 ohm no need to upgrade to only 250 watt unless it's in 8 ohm and it has better sound

i was not going to upgrade to 2 power amps or one some how i got carried down the river with all this comments lol it might be something i will do in the futrure but not now i love what i got

Using any dac?

Is you cdplayer a sacd player?

only the on borad dac inside the cd player and its only a normal cd player not a sacd player

 

[gasolin]

ok just find out they are 4 ohms speakers but got confused as the shop says were i got them from says they are 8ohms but go to 4 ohms when adding more speakers ?

You have 140 watt pr channel in 4 ohm no need to upgrade to only 250 watt unless it's in 8 ohm and it has better sound

i was not going to upgrade to 2 power amps or one some how i got carried down the river with all this comments lol it might be something i will do in the futrure but not now i love what i got

Using any dac?

Is you cdplayer a sacd player?

only the on borad dac inside the cd player and its only a normal cd player not a sacd player

Why not a sacd?

 

[Blacksabbath25]

ok just find out they are 4 ohms speakers but got confused as the shop says were i got them from says they are 8ohms but go to 4 ohms when adding more speakers ?

You have 140 watt pr channel in 4 ohm no need to upgrade to only 250 watt unless it's in 8 ohm and it has better sound

i was not going to upgrade to 2 power amps or one some how i got carried down the river with all this comments lol it might be something i will do in the futrure but not now i love what i got

Using any dac?

Is you cdplayer a sacd player?

only the on borad dac inside the cd player and its only a normal cd player not a sacd player

Why not a sacd?

I still have my Marantz sacd player but I only brought 1 sacd cd for it I also found that if your into rock / metal there is not much of a choice in sacd CDs to buy it's like the blacksabbath albums they are on sacd cd but very expensive to buy like £400 for 1 album and to be honest there is not much difference in sacd CDs and normal CDs but still kept my marantz pm8005 + sacd 8005 + arcam irdac because I still think the pm8005 is good so it's back up just in case the abrahamsen goes faulty as you never know and I can not live without any music

 

[davedotco]

I am not really seeing a problem here....*unknw*

Play a few typical CDs, what is the volume control setting when they are playing at your 'loudest usual' level and what are the settings for 'normal' listening?

 

[radiorog]

Im not sure.its not what I am led to believe from other posts on this forum. Can anyone validate which would be louder please?

?

It's an easy question 4 ohm is louder then 8 ohm if sensitivity is the same as well as the amp

Ok, cheers.learn something new every day. I should prob in more effort to learn the basics!

 

[Blacksabbath25]

I am not really seeing a problem here....*unknw*

Play a few typical CDs, what is the volume control setting when they are playing at your 'loudest usual' level and what are the settings for 'normal' listening?

there is no problem *smile*

 

[CnoEvil]

Im not sure.its not what I am led to believe from other posts on this forum. Can anyone validate which would be louder please?

?

It's an easy question 4 ohm is louder then 8 ohm if sensitivity is the same as well as the amp

Ok, cheers.learn something new every day. I should prob in more effort to learn the basics!

As the Ohms drop, it sucks more power out of the amp....which is why it needs a robust power supply in order to cope with the extra demand (and sounds louder).

Eg. My amp is only 30W into 8 Ohms, but 60W into 4 Ohms (and nearly 120W into 2 Ohms)

 

[Blacksabbath25]

Im not sure.its not what I am led to believe from other posts on this forum. Can anyone validate which would be louder please?

It's an easy question 4 ohm is louder then 8 ohm if sensitivity is the same as well as the amp

Ok, cheers.learn something new every day. I should prob in more effort to learn the basics!

As the Ohms drop, it sucks more power out of the amp....which is why it needs a robust power supply in order to cope with the extra demand (and sounds louder).

Eg. My amp is only 30W into 8 Ohms, but 60W into 4 Ohms (and nearly 120W into 2 Ohms)

yes well I learned something myself today about my speakers I thought they were 8 ohm speakers but they are 4 ohms ones

 

[Blacksabbath25]

So what I am trying to say about CDs is that say 1 cd is pink floyd the wall album I would have to put the volume upto 50 to get the involvement out of this album .

cd . 2 manowar fighting the world volume 45 to get the involvement

now is this the loudness war thing as one cd is more compressed then the other so you get a loudness difference between the 2 CDs

or I am bugged and losing my hearing a bit

 

[stevee1966]

Of course some cd's are going to be louder than others. My previous query was more surprise that you can play your amp at nearly max volume (you stated playing at 55 when the amps maximum is 60) yet not get room filling sound.

 

[Blacksabbath25]

Of course some cd's are going to be louder than others. My previous query was more surprise that you can play your amp at nearly max volume (you stated playing at 55 when the amps maximum is 60) yet not get room filling sound.

it's funny how the abrahamsen uses its volume from 0 - 25 you get nothing no sound on 30 it's low but you can hear the music then 40 is about 9 o'clock then 45 is 10 o'clock , 50 is 11 o'clock but that 50 turns into 45 on CDs that are louder but 50 on a cd that not so loud and yes the max volume is 60 but my normal volume is 45 -47 this fills the room with music if this makes any sense

 

[Vladimir]

Of course some cd's are going to be louder than others. My previous query was more surprise that you can play your amp at nearly max volume (you stated playing at 55 when the amps maximum is 60) yet not get room filling sound.

it's funny how the abrahamsen uses its volume from 0 - 25 you get nothing no sound on 30 it's low but you can hear the music then 40 is about 9 o'clock then 45 is 10 o'clock , 50 is 11 o'clock but that 50 turns into 45 on CDs that are louder but 50 on a cd that not so loud and yes the max volume is 60 but my normal volume is 45 -47 this fills the room with music if this makes any sense

It's a logarithmic volume scaling from 0-60dB. It has different input sensitivity and attenuation than the PM8005. The Marantz will go louder earlier on the volume scale.

Linear vs. Audio
Potentiometers, or "pots" to electronics enthusiasts, are differentiated by how quickly their resistance changes. In linear pots, the amount of resistance changes in a direct pattern. If you turn or slide it halfway, its resistance will be halfway between its minimum and maximum settings. That's ideal for controlling lights or a fan, but not for audio controls. Volume controls have to cater to the human ear, which isn't linear. Instead, logarithmic pots increase their resistance on a curve. At the halfway point volume will still be moderate, but it will increase sharply as you keep turning up the volume. This corresponds to how the human ear hears.

 

[Blacksabbath25]

Of course some cd's are going to be louder than others. My previous query was more surprise that you can play your amp at nearly max volume (you stated playing at 55 when the amps maximum is 60) yet not get room filling sound.

it's funny how the abrahamsen uses its volume from 0 - 25 you get nothing no sound on 30 it's low but you can hear the music then 40 is about 9 o'clock then 45 is 10 o'clock , 50 is 11 o'clock but that 50 turns into 45 on CDs that are louder but 50 on a cd that not so loud and yes the max volume is 60 but my normal volume is 45 -47 this fills the room with music if this makes any sense

It's a logarithmic volume scaling from 0-60dB. It has different input sensitivity and attenuation than the PM8005. The Marantz will go louder earlier on the volume scale.

Linear vs. Audio

Potentiometers, or "pots" to electronics enthusiasts, are differentiated by how quickly their resistance changes. In linear pots, the amount of resistance changes in a direct pattern. If you turn or slide it halfway, its resistance will be halfway between its minimum and maximum settings. That's ideal for controlling lights or a fan, but not for audio controls. Volume controls have to cater to the human ear, which isn't linear. Instead, logarithmic pots increase their resistance on a curve. At the halfway point volume will still be moderate, but it will increase sharply as you keep turning up the volume. This corresponds to how the human ear hears.

ok mate thanks for that i did not understand myself were you get no volume from 0 - 25 but then after that you start getting volume where the marantz has volume early on

 

[Oie]

I find interesting how loud you turn up the volume.

I normally "cannot" go louder than 35.

 

[Electro]

I find interesting how loud you turn up the volume.

I normally "cannot" go louder than 35.

That is probably beacause you speakers are far more efficient at 92db so will go louder using less power. *smile*

 

[Blacksabbath25]

I find interesting how loud you turn up the volume.

I normally "cannot" go louder than 35.

so do you get volume from 0 then ? and what ohms are your speakers ? .. ok just looked 8 ohms

 

[nopiano]

I find interesting how loud you turn up the volume.

I normally "cannot" go louder than 35.

so do you get volume from 0 then ? and what ohms are your speakers ? .. ok just looked 8 ohms

Dont get confused between impedance (in Ohms), which is a type of electrical resistance, and the speaker's efficiency at converting the input power into sound, which is expressed in dB (for 1 watt input). A 85dB speaker, typically a small 'bookshelf' type, will be much quieter than anything with a senstivity over 90dB.

I'd respectfully suggest a bit of reading up on these basics would be helpful. It goes a long way to explaining why watts per se are not so important.