Blackstar HT5 To Two 8 ohm Cabinets

Jeff5

New member
I want to run my HT5 to an 8 ohm 1X12 cabinet that I'm getting today as well as to an 8 ohm 4X12 cabinet. (Both Boogies)

The outputs on the back of the Blackstar are a bit confusing. There is one for 1 16 ohm cabinet.

Then there are two more. They say "1x8 Ohm or 2x16 Ohm’ outputs"

How do I hook up my two cabinets? Do I just hook both up separately to the "1x8 Ohm or 2x16 Ohm’ outputs"?

Or do I hook one up then go out from that to the other? The 4X12 has a jack that simply says "out" and the 1X12 has a jack that says "paralleled out"

Help! I don't want to hook something up wrong and damage my amp. Thanks!

Jeff
 
Re: Blackstar HT5 To Two 8 ohm Cabinets

You don't.

Your options are:

- 1 16 ohm cab
- 1 8 ohm cab
- 2 16 ohm cabs (same load as 1 8 ohm cab)

Sorry.
 
Re: Blackstar HT5 To Two 8 ohm Cabinets

Are you wanting to use the 1x12 as a monitor.?
I guess you could use a series cable in between the 4x12 and 1x12, and then run that into the 16 Ohm out jack.
If you are anywhere near the 4x12, I do not think you will hear much of the 1x12.....but I could be wrong.
You can always give it a try.
best
 
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Re: Blackstar HT5 To Two 8 ohm Cabinets

V30's like to be pushed with lots of volume and power. 5 watts into 5 V30's is not advantageous.
 
Re: Blackstar HT5 To Two 8 ohm Cabinets

I use a 1x12" cab with V30 alongside my HT-5 and it sounds great. I can understand wanting to use two cabs, but you are going to need to do some wiring to put the speakers in series or switch the speakers to 16Ohm models. The V30 does work nicely with the HT-5, don't discount them.
 
Re: Blackstar HT5 To Two 8 ohm Cabinets

Thanks guys, I appreciate the responses.

Honestly, I'll probably just use the 1X12 with the HT5 on it's own so it's not a huge issue. I don't quite understand the ohm/resistance thing so that's why I was asking. The reason I bought an 8 ohm is because I got a really good deal on a a Mesa min-rectifier 1X12 that I couldn't pass up.

I'm only messing with my 4X12 because I have my Triaxis at Mesa getting the fat mod removed. It's not something I'm going to use with the HT5 going forward. I was playing around mostly =).

The only thing I may do in the future is buy another 1X12 for the HT5 to have a mini stack. I'll have to make sure it's a 16 ohm.

Thanks again!
Jeff
 
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Re: Blackstar HT5 To Two 8 ohm Cabinets

You'll need two 16 ohm cabs.

See post #2.

I thought about that. However, the manual states that I can use the single 16ohm jack for the internal speaker or a 16ohm cabinent, and the two 8 ohm jacks for 1 8ohm cabinent or 2 16 ohm cabinets.

I currently have the first configuration hooked up now, i.e. the internal 16ohm speaker to the single 16ohm jack and an external 8ohm cabinet to one of the 8ohm jacks. Am I potentially damaging something?
 
Re: Blackstar HT5 To Two 8 ohm Cabinets

I thought about that. However, the manual states that I can use the single 16ohm jack for the internal speaker or a 16ohm cabinent, and the two 8 ohm jacks for 1 8ohm cabinent or 2 16 ohm cabinets.

I currently have the first configuration hooked up now, i.e. the internal 16ohm speaker to the single 16ohm jack and an external 8ohm cabinet to one of the 8ohm jacks. Am I potentially damaging something?

No, you're right ... that's fine. I just misunderstood.

You can use the 16 and the 8's at the same time.
 
Re: Blackstar HT5 To Two 8 ohm Cabinets

Excellent thank you! And thanks everyone for putting up with my rather basic questions =). Mostly, I've hooked up power amp to cabinet and never had to deal with small amps/ohm ratings and things like that. (Or maybe I never paid attention and could have blown myself up!!!)
 
Re: Blackstar HT5 To Two 8 ohm Cabinets

You don't.

Your options are:

- 1 16 ohm cab
- 1 8 ohm cab
- 2 16 ohm cabs (same load as 1 8 ohm cab)

Sorry.

You DON'T. for a DIFFERENT reason.

...which is that the 4x12 and the 1x12 would, in 99% of amps unless a veeeeery complex array of plug-in options and ohmages are available, be getting HALF THE SIGNAL EACH. Resulting in one overcranked 12 ... and four twelves barely getting any.

Also, on a side note, a fifth twelve isn't gonna change much even if you could, ya already got four of em. Now, adding a second 4x12" actually has some impact on volume (and adds some stereo capability if running mono cabs), but for really changing up the flavour, not just adding kick, you need different speakers, preferably in a different size to cover different territory... Example: adding a 1x15" monstrosity of a cab with some insane wattage rating to a 4x12 can actually make audible changes to overall punch, impact, and noticeably change the overall flavour, giving you veeeery audible changes indeed to bass response.

PS just use the 4x12 alone. You'll be surprised how well some tiny tube amps get along with those. They pair up reaaaaal nice. Never really much of a problem underpowering speakers wattage-wise (can't harm em that way), and good speakers can easily reproduce even very small signals. And, since wattage doesn't increase volume linearly at all, the difference isn't as insane as it might seem anyway.
 
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Re: Blackstar HT5 To Two 8 ohm Cabinets

Thanks Adieu! Yes, the HT5 actually sounds really cool through my Mesa 4X12! I crank the little guy and it is LOUD.
 
Re: Blackstar HT5 To Two 8 ohm Cabinets

+1 except I ran an original (non-reverb) HT-5H through a MESA/Boogie Compact Thiele (1 x EVM-12L). Easily loud enough for small gigs.

The stock Blackstar HT-110 enclosure is lifeless by comparison. The particle board construction is less than ideal and the MIC Celestion G10N-40 is no great shakes.



EDIT - Does anyone have any tweak suggestions for the original series HT-5? Valves, loudspeakers, cabinet materials, minor electronic components et cetera?
 
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Re: Blackstar HT5 To Two 8 ohm Cabinets

I actually bought a Mesa mini-rectifier 1X12 cabinet and just use the HT5 as a head now. The Mesa cab is phenomenal and a huge upgrade in general.
 
Re: Blackstar HT5 To Two 8 ohm Cabinets

A couple things...

I think ratherdashing was correct in his post #2.

I could be way wrong, but I believe your amp is designed to have EITHER the internal 16 ohm spkr, OR one 16 ohm cab, OR one 8 ohm cab, OR 2x16 ohm cabs in parallel (= 8 ohms total). You don't want to go below 8 ohms total, and if you run the internal 16 ohm spkr (or a 16 ohm cab) AND an 8 ohm cab at the same time your total load is going to be below 8 ohms (about 5.3 ohms).

If you buy another 1x12 cab in the future, even if it's 16 ohms, you don't want to run it with your current 8 ohm cab...you'd end up with the same problem as above. However, you could plug your internal 16 ohm spkr into one of the 8 ohm jacks on your amp and plug the 16 ohm cab into the other 8 ohm jack thus giving you a total impedence of 8 ohms.

Or, you could buy another 8 ohm cab and hook it up in series to your existing 8 ohm cab giving you a total impedence of 16 ohms.
 
Re: Blackstar HT5 To Two 8 ohm Cabinets

Doc is correct. 1x16, 2x16, 1x8 is actually printed on the rear panel of the HT-5, above the three available loudspeaker sockets.
 
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