MarkBass mb57r 4x10 8ohm cab or 4ohm

[DeanSub]

Add a 2x10 down the road so that you even have the option of going light weight...a single 2x10 is all you need for many gigs, cramped spaces too, unless you are a life long high volume drum guy, and the 2x10 will add the head level height that helps presence as well as max watts when needed. Yes at 700w even halfed you are fine.

Yeh I know what you mean. I already have my fender rumble 500 for gigs that are that small. This new amp and can have been purchased specifically for bigger stages and more space. But yes your right, I am realising that 700w halved is going to be sufficient for now. Until its not. Then I'll just add the other cab.

 

[Wasnex]

Is the sensitivity of both the 4 ohm and 8 ohm drivers the same.? I believe that for some makers it may be, but for others it may not, with the 8 ohm driver potentially having greater sensitivity.

The specs say both cabs have the same sensitivity. I don't claim the specs are correct though.

 

[DeanSub]

Welcome!

I would stick with the 8 ohm. Getting all the watts (lol) is of less concern than making enough noise. The cab will only produce that it can produce, regardless of how much juice it’s getting. At a certain point (probably before your amp tops out) you’re getting all the noise you can get out of the cab and more juice will just start breaking stuff.

Yeh your probably right. It is strange though because I have been able to crank the ag700 pretty high. Just in my living room lol. Like I had the gain and master at 3 o'clock. Only then were the speakers actually visibly moving and the clipping light on the AG was going off.
The cab is rated for 800w .

 

[DeanSub]

Just an FYI: I have only once bought 4Ω cabs. It was in 2018 and I needed a small venue cab for a brewpub where we played over 40 times a year (hosted open mic nights playing one or two hours depending on signups). I settled on an Eden EX-112 4Ω cab because it was only $269 new and a friend had been using two of them for about 4-years. He highly recommended it. I also bought an Eden TN226 class D amp (225-watts rms) to match with it.

The darn cab sounded so good the first night I played through it that I ordered a second one the next day so I could use two of them for medium-sized venues instead of rolling in my 410. My class D Eden amp that weighed just 4.7-lbs. could only handle a 4Ω minimum load so I had to use my big Eden class A/B to drive the two of them. It's a dual powerblock amp meaning it has two separate power channels. It can put out up to 400-watts rms into 4Ω or bridge at 800-watts into 8Ω. So I plugged one into each channel and away I went. My Eden WT500/800 weighs about 36-lbs in its rack. Sounds great, but is heavy...should have bought the 8Ω version even though I never expected to use a second one. I could have used the small Eden TN amp for most places I ended up using it.

I'd keep the 8Ω cab.

Here's my small venue 112 with class D amp. See how nicely it fits in a chair with the amp shoulder bag and my gig bag underneath it?
View attachment 5171446

And here's my two x 112 set up with my big Eden amp. Every time I used it I regretted not getting the cabs in 8Ω. Even so, it beat rolling in my 410 along with this amp. I did get a lot of compliments on my sound with this rig though:
View attachment 5171447

Yeh nice. I'm gonna keep the 8ohm. Thanks for the message

 

[Wasnex]

Wouldn't know about sensitivity. What does that affect?

If you don't understand, I suggest you go back an read my first post.

The Sensitivity rating is how SPL the cab make when 1 Watt is applied and a measurement is taken at 1 meter.

For each doubling of power, the SPL goes up approximately +3dB

Per MB your cabs are rated 103dB 1W/1m

So here is the progression
1W = 103dB
2W = 106dB
4W = 109dB
8W = 112dB
16W = 115dB
32W = 118dB
64W = 121dB
etc

 

[BassBrass]

Yeh your probably right. It is strange though because I have been able to crank the ag700 pretty high. Just in my living room lol. Like I had the gain and master at 3 o'clock. Only then were the speakers actually visibly moving and the clipping light on the AG was going off.
The cab is rated for 800w .

In that case I'd suggest adding a preamp/compressor to get your line level up. You should be, ideally, at noon on master, higher on the "gain" pre is ok.

 

[Wasnex]

Here is another option a lot of people would consider. Looks like MarkBass makes a matching 210 that is also available in both 4 ohms and 8 ohms.

The AG700 is rated 700W at either 2.67 ohm or 2 ohms, so the best combination would be a 4 ohm 410 and an 8 ohm 210. 4 ohms and 2 ohms in parallel = 2.67ohms.

The reason for this combination is so each driver will get the same power.

The 4 ohm cab will draw twice as much power as the 8 ohm cab. So think of it as breaking the power into three shares...two shares for the 410 and one share for the 210.

700W/3 = 233.33W​

The 4 ohms 410 will get two shares.

2 x 233.33 = 466.67W
​

The 8 ohm 210 will get one share

1 x 233.33 = 233.33W
​

Each driver in the 410 will get 1/4 of 466.67W

466.67/4 = 116.67W
​

Each driver in the 210 will get 1/2 of 233.33

233.33/2 = 116.67W
​

So at 700W, each of the six drivers receives 116.67W

The idea here is to have a modular rig. For low volume take the 210. For medium volume take the 410, For max volume take both.

 

[dbsfgyd1]

Hi Guys.

Just signed up. First time ever posting in a forum haha.

Just have a question for you guys.

I just purchased a new rig

Aguilar AG700 head
MarkBass MB58r Energy 4*10 Cab 8ohm

I realised on the way home from the dealer that we didn't talk about ohms in the excitement of everything. I think I was actually intending to get a 4ohm cab to get the most out of the AG700. But I ended up with the 8ohm version.

I called the dealer and he is happy for me to come and swap it for the 4ohm.

I'm going to let the engineers on this board explain why this is, but I doubt you will notice much difference in volume between and 8 ohm or 4 ohm cab. I'd keep the 8ohm cab ( which I did in a similar circumstance, and bought a second cab when needed, but is not needed a lot now LOL!!).

My question is

Should i keep the 8ohm so I can easily add another cab down the line. And just utilise half the power of the AG for now. Or go and swap to the 4ohm?

I will be playing medium sized venues for now playing hard rock.

Sorry for the long message

Also, I can't seem to upload my photo

 

[Shooz]

Everyone is discussing SPL, ohms, etc., all great things to know and understand, but at the end of the day, a 4x10 8 ohm cab with a 700 watt head is going to be pretty darn loud. It’s also a lot to drag around, given what you said, I’d keep what you have, but unless you start playing larger locations, I think you have all you’ll need. Still gives you the option to expand, but I would not want to drag around 2 4x10 cabs, but then again, I’m an old dude LOL. I run a Markbass cmd 121p (500 watt unit) plus a MB 121 NY extension cab, that has covered everything I’ve needed indoor and outdoor gigs.
Congratulations and enjoy the new gear!

 

[themickster]

These new 4x10 cab from mark mass only weighs 16kg. It's super light. Plus part of me just wants a big stack behind me. Lol

If that's what you want to do, do it.