sb acoustics mid woofer 5" vs 6"

[terteliu]

Hello, I bought 2 months ago two sb acoustics speakers 8" SB23NRXS45-8

The cabinets for them have about 50 liters and even though Vas is 94 liters, the low frequencies are exceptional, I'm very pleased with it.

Now I would like to make a cabinet about 15 liters with one of the folowing speakers:

5" SB15NRXC30-8 - vas 20,7 liters, 50w
SB Acoustics :: 5" SB15NRXC30-8
or
6" SB17NRXC35-8 - vas 44,5 liters, 60w
SB Acoustics :: 6" SB17NRXC35-8

on graphis it's a 3-4 dB difference between them on the amplitude chart

I do not believe that I know enough to make good simulations with popular programs, so I don't know which one would perform better at 35-40 Hz, on a 15 liter cabinet.

The price is almost equal, 56 euro for the 5", and 62 euro for 6".

5" or 6"?

Thanks.

[PeteMcK]

there's no substitute for Sd when you need to move LF air, but you need the right sized cabinet to boot (Hoffman strikes again...). The 5" is probably a better match for that size cabinet, but you'll have to compromise on the LF extension...

[Ron E]

Originally Posted by terteliu

Hello, I bought 2 months ago two sb acoustics speakers

I have used the 5", it measures exactly as per the spec sheet on an IEC baffle and I was able to make it VERY flat on an actual baffle. I haven't used the 6", but I have heard it, also quite a nice driver.

[terteliu]

Originally Posted by Ron E

I have used the 5", it measures exactly as per the spec sheet on an IEC baffle and I was able to make it VERY flat on an actual baffle. I haven't used the 6", but I have heard it, also quite a nice driver.

Is the 5" driver enough for a small room party let's say 40 square meters?

When I bought the 8" I did not realised how powerfull it is, and how big is a 50 liter (inside) cabinet, almost 70 liters (exteriour). The sound is verry good, but I do not listen to more than 2-5 watts except at parties.

This is why I would like something small, but with good sound.

The cabinet for the 6" is also big, I think minimum 25 liter inside, this could be 32-33 the exteriour, I it was ok for a column, But I want something to put on my desk, not near it.

[Ron E]

I would never recommend a 5" for a party speaker. These will take some abuse, though.

[jerome69]

I have already seen a 5" use as a party speaker
It was a carbon 5" in a RCF speaker. RCF is known for PA speakers.
The problem with small driver is the amplifier must be enough powerful to handle correctly the driver.

With the SB 5" you can achieve near 100dB SPL enough for a party. The problem could be bass output but if you limit it, no problem.

NB: For 15L the 6" is Ok. The kit use a 15L box http://www.sbacoustics.com/index.php/products/kits/eka/

[lduarte1973]

What material is the cone of the SB23NRXS45-8 made of ?

[terteliu]

Originally Posted by lduarte1973

What material is the cone of the SB23NRXS45-8 made of ?

I don't know what is the material, in the specks it war written coated.

SB Acoustics :: 8'' SB23NRXS45-8

[terteliu]

Originally Posted by jerome69

I have already seen a 5" use as a party speaker
It was a carbon 5" in a RCF speaker. RCF is known for PA speakers.
The problem with small driver is the amplifier must be enough powerful to handle correctly the driver.

With the SB 5" you can achieve near 100dB SPL enough for a party. The problem could be bass output but if you limit it, no problem.

NB: For 15L the 6" is Ok.

This is what I was wondering.
In the same box 15-16L, which one would produce a better low frequencies?

[terteliu]

Maybe because de box is small, the +3,4db that the 6" has more on the charts, would be lost, or even more 5-6? at 45 Hz for example?