Question Do I have appropriate speakers?

rob_wales

Well-known member
Feb 1, 2020
5
1
1,525
Hello

I have a Marantz PM6007 amp, which I am very happy with. I connect a bluetooth adapter to one of the inputs and play all my music (mostly classical) through Amazon Music from my Samsung phone. I find the sound quality is very good. I have a pair of Wharfedale Diamond 9.1 speakers attached. The volume level at about 20% on the amp dial is sufficient most of the time. If I go to about 40% it gets quite loud, and I can't detect any distortion. However, if I go above 40% it doesn't seem to get a lot stronger on volume. Have I got the wrong speakers, or could it be a problem from my phone? I tried connecting my Dali Spektor speakers (from another amp upstairs) and it didn't make much difference.

The room is 25ft x 13ft with a wooden floor.
 

A-Line

Well-known member
Feb 3, 2022
51
11
45
Maybe try more efficient speakers such as Classic Klipsch speakers( 1 watt = 106db), or some other brand of efficient speakers.
 

Gray

Well-known member
It may be that the volume pot on your amp is giving most gain early on in its travel (which wouldn't be a fault, just its characteristic).

What about other sources such as CD player or DAC, how do they compare with the Bluetooth receiver?
(My own BT receiver has noticeably less output than CD / DAC)
 

Tinman1952

Well-known member
May 19, 2021
1,371
807
2,070
Hello

I have a Marantz PM6007 amp, which I am very happy with. I connect a bluetooth adapter to one of the inputs and play all my music (mostly classical) through Amazon Music from my Samsung phone. I find the sound quality is very good. I have a pair of Wharfedale Diamond 9.1 speakers attached. The volume level at about 20% on the amp dial is sufficient most of the time. If I go to about 40% it gets quite loud, and I can't detect any distortion. However, if I go above 40% it doesn't seem to get a lot stronger on volume. Have I got the wrong speakers, or could it be a problem from my phone? I tried connecting my Dali Spektor speakers (from another amp upstairs) and it didn't make much difference.

The room is 25ft x 13ft with a wooden floor.
I am assuming you have your phone volume on maximum?
 

rob_wales

Well-known member
Feb 1, 2020
5
1
1,525
It may be that the volume pot on your amp is giving most gain early on in its travel (which wouldn't be a fault, just its characteristic).

What about other sources such as CD player or DAC, how do they compare with the Bluetooth receiver?
(My own BT receiver has noticeably less output than CD / DAC)
The BT seems to give the most volume. If I connect via RCA cable from phone socket to another amp input the volume is less, although the sound quality seems about the same. Might it be a good idea to go to Richer Sounds and ask to get a demo of my current speakers versus a different pair?

I don't have other inputs such as CD.
 
Last edited:

nopiano

Well-known member
My experience of Bluetooth is that there is little consistency in output levels from various devices. It’s not like CD which was req to max out at 2 volts, though this has crept up to 2.1, 2.2 and higher (giving an advantage on comparative demos).

Also, I believe the 600x series from Marantz is known to operate at lowish volume settings, probably because that impresses some people that it’s much more powerful than it is. But of course it runs out of steam sooner, as a result.

Your speakers are great budget devices, but can be bettered for quality, especially for classical music, as that tends to be recorded at lower average records than ‘pop/rock’ does.
 
  • Like
Reactions: WayneKerr and Gray

plastic penguin

Well-known member
I think a 45 watt amp could struggle with a 6 ohm 86 db speaker if cranked up. At 40% volume is fine, according to the OP, but above that it struggles. Above 40% tells me he plays it at close on half the amps total output.

I would suggest looking at a more powerful amp or more efficient speakers, 8 ohms and 88db upwards.
 

Tinman1952

Well-known member
May 19, 2021
1,371
807
2,070
The BT seems to give the most volume. If I connect via RCA cable from phone socket to another amp input the volume is less, although the sound quality seems about the same. Might it be a good idea to go to Richer Sounds and ask to get a demo of my current speakers versus a different pair?

I don't have other inputs such as CD.
The phone socket (headphone output) normally defaults to 50% volume to avoid hearing damage with headphones. Again this should be at max...
 
  • Like
Reactions: Al ears

rob_wales

Well-known member
Feb 1, 2020
5
1
1,525
My experience of Bluetooth is that there is little consistency in output levels from various devices. It’s not like CD which was req to max out at 2 volts, though this has crept up to 2.1, 2.2 and higher (giving an advantage on comparative demos).

Also, I believe the 600x series from Marantz is known to operate at lowish volume settings, probably because that impresses some people that it’s much more powerful than it is. But of course it runs out of steam sooner, as a result.

Your speakers are great budget devices, but can be bettered for quality, especially for classical music, as that tends to be recorded at lower average records than ‘pop/rock’ does.
Your middle para sounds about right. It does feel like that. I was expecting a linear progression of volume output as I turned the dial up, but that just doesn't happen. I am quite happy with the volume, it just makes me wonder why it trails off at the upper end. Classical does sound lower level of volume than rock.
 

Gray

Well-known member
Might be a good idea to go to Richer Sounds and ask to get a demo of my current speakers versus a different pair?
Could well be worthwhile, if only to find a better sounding pair.
Higher sensitivity will obviously boost your level, but don't expect that volume dial to act in much more of a linear fashion.
 

WayneKerr

Well-known member
Jan 21, 2022
74
70
120
It may be that the volume pot on your amp is giving most gain early on in its travel (which wouldn't be a fault, just its characteristic).
Definitely this. I owned the 6004 and 8004 it was exactly the same on CD input. Too loud too quickly, go much over 50% of volume travel and you're into clipping territory.

Also agree with nopiano's post.
 
Last edited:
  • Like
Reactions: nopiano and Gray

rob_wales

Well-known member
Feb 1, 2020
5
1
1,525
If you normally only listen at 20% and you like the sound what is the problem exactly?
It isn't really a problem. I posted this as a question. I'm just curious to know why there is such a fall-off in the sound level past 50% on the dial. I don't know much about hi-fi and I wondered if having more volume in reserve would give a better quality sound at lower levels of volume. I have noticed on other devices that if you turn up the volume too much distortion soon creeps in and spoils the quality of sound.
 
  • Like
Reactions: doifeellucky

ASK THE COMMUNITY

TRENDING THREADS

Latest posts