I have a pair of metranome 3s by dick sequerra, km looking for the mid range speakers for the pyramid met 3s, it looks something like this.
Any opinions are welcome thank you!
Any opinions are welcome thank you!
I'm not sure if these are for the met threes but I want to get them back to original specs so any information is welcome this is my best guess from memory.
Ok I've never attempted this tho, I'm almost positive I have at least 2 to 3 drivers in this cabinet from my reasech I can't find much information tho. I'll get back to you once I yank the cabinet apart, it's still got factory gum on everything except those mid ranges.
This is what the speaker should look like from my investigation but idk, this one all janky
This is what the speaker should look like from my investigation but idk, this one all janky
Attachments
I want something like that old peerless to throw in the cabinet I like the older sound, I'm not sure tho, (4 in speakers in the pyramid are some doodoo ones, ima throw them out when k get new ones) maybe get a new version, idk we will see what ppl have to say I guess
https://www.diyaudio.com/community/threads/peerless-k040mrf-mf-driver-replacement.262052/
Perhaps it's only surround that needs a repair.

Perhaps it's only surround that needs a repair.

Last edited:
I have some cheap crap in there, I don't even know what they are, I put them in idk, 15 years ago, and they still work but aren't right, so I want what goes in
Yea, I've seen some of the older ones but from what I can remember they weren't constructed very well, like it was originally cork, these peerless are the best guess on memory like as a look alike also I used ai a bit ti research and that peerless is what it came up with for the met 3s, the met 3s are 4 ohm. So idk best guess
Midrange speaker with integrated housing, and an "all PP" cone and
surround. The voice coil is damped with ferrofluid enabling very high
power handling and easy filtering. An outstanding midrange speaker
with an exceptional sound reproduction. The driver is also practical
to use as it demands no special volume and no complicated filter.
Thiele Small parameters:
Nominal impedance Zn (ohm) 8
Minimum impedance/at freq. Zmin (ohm/Hz) 8.3/950
Maximum impedance Zo (ohm) 9.3
DC resistance Re (ohm) 6.2
Voice coil inductance Le (mH) 0.3
Resonance Frequency fs (Hz) 530
Mechanical Q factor Qms 1.07
Electrical Q factor Qes 2.16
Total Q factor Qts 0.72
Mechanical resistance Rms (Kg/s) 17.83
Moving mass Mms (g) 5.73
Suspension compliance Cms (mm/N) 0.02
Effective cone diameter D (cm) 9.6
Effective piston area Sd (cm²) 72.0
Force factor Bl (N/A) 7.4
Reference voltage sensitivity Re 2.83V 1m at 950 Hz (Measured)
(dB) 91.0
Magnet and voice coil parameters:
Voice coil diameter d (mm) 26
Voice coil length h (mm) 9.0
Voice coil layers n 2
Flux density in gap B (T) 1.1
Total useful flux (mWb) 0.5
Height of the gap hg (mm) 5.0
Diameter of magnet dm (mm) 72
Height of magnet hm (mm) 15
Weight of magnet (kg) 0.24
Power handling:
Long term Max System Power (IEC) (W) 180
Max linear SPL (rms) / by power (dB/W) 110/115
surround. The voice coil is damped with ferrofluid enabling very high
power handling and easy filtering. An outstanding midrange speaker
with an exceptional sound reproduction. The driver is also practical
to use as it demands no special volume and no complicated filter.
Thiele Small parameters:
Nominal impedance Zn (ohm) 8
Minimum impedance/at freq. Zmin (ohm/Hz) 8.3/950
Maximum impedance Zo (ohm) 9.3
DC resistance Re (ohm) 6.2
Voice coil inductance Le (mH) 0.3
Resonance Frequency fs (Hz) 530
Mechanical Q factor Qms 1.07
Electrical Q factor Qes 2.16
Total Q factor Qts 0.72
Mechanical resistance Rms (Kg/s) 17.83
Moving mass Mms (g) 5.73
Suspension compliance Cms (mm/N) 0.02
Effective cone diameter D (cm) 9.6
Effective piston area Sd (cm²) 72.0
Force factor Bl (N/A) 7.4
Reference voltage sensitivity Re 2.83V 1m at 950 Hz (Measured)
(dB) 91.0
Magnet and voice coil parameters:
Voice coil diameter d (mm) 26
Voice coil length h (mm) 9.0
Voice coil layers n 2
Flux density in gap B (T) 1.1
Total useful flux (mWb) 0.5
Height of the gap hg (mm) 5.0
Diameter of magnet dm (mm) 72
Height of magnet hm (mm) 15
Weight of magnet (kg) 0.24
Power handling:
Long term Max System Power (IEC) (W) 180
Max linear SPL (rms) / by power (dB/W) 110/115
Thaysbamazing information, thank you, I'm not great with the data sheet stuff it takes me some time, I'm just getting back into this, I really appreciate all your knowledge, this is great.
So basically your saying buy those and put a cone on them or cup, or whatever, like yes, I gotta build them to specs, but that's the jist right?
So basically your saying buy those and put a cone on them or cup, or whatever, like yes, I gotta build them to specs, but that's the jist right?
Now here's another prolly stupid question I just don't know and it's easier to ask.
These met 3 cabinets that I removed the 4 inch sealed peerless from, I removed the speaker and the cup.
Now is that just a plain ol speaker or is there special stuff, like do I gotta make some sort of crossover or anything?
These met 3 cabinets that I removed the 4 inch sealed peerless from, I removed the speaker and the cup.
Now is that just a plain ol speaker or is there special stuff, like do I gotta make some sort of crossover or anything?
- Home
- Loudspeakers
- Multi-Way
- Peerless 4 ohm 4 inch sealed speaker info needed or replacement recommendations