Speaker cabinet matching

[RUSSK]

When I remodeled my house, I came up with a void that is 78" high, 18" wide, and 16" deep. At the time I owned a Baldwin organ that used a 15" speaker, and 2 6" speakers. I mounted them on a panel and used the void/box to house them.

Later I acquired a Conn organ, which used 2 15" woofers and a selection of other speakers of various sizes. It came with a wood panel with most of this stuff mounted on, so I took one of the 15" and added it to my panel with the original, and bought a new pair of 6X9" three-way speakers and installed them. Worked pretty good. I chose the 6X9 because it seems that a lot of original organ speakers used 6X9.

Now, I purchased an Allen AP-3. I can't seem to get good low end. Looking closer at a lot of the speakers from Allen and Rodgers, it looks like most of them use a real woofer rather than a stiff-cone 15" speaker.

I would now like to replace the woofers with something else. It appears that my cabinet has a volume of about 13 cu feet. Should I use something like the Goldwood 290-346 woofer. Since I will be putting 2 of these in the enclosure, how does that affect the parameters. Or should I vent the box and use something completely different.

I am looking for any suggestions on what would be my best route to go here.

[philiparcario]

you have a 13 cu ft cabinet that is one space. Do you know the crossover points. lots of nice 15 inch woofers out there. does this organ's woofers need to reach 100hz or 200hz. because you can use dayton rss 390hf subwoofers up to 100hz with ease. but if the 15 inch is more of an instrument woofer it may cross at 200 or 300hz. I hate to say buy a pair of dayton rss390 subwoofers give you great bass from 18 to 100hz and then muddy up your 100hz to 300hz range.

[RUSSK]

How does putting 2 woofers in the same cabinet (sealed) affect the enclosure vs tuning listings for each speaker.

I am employed in consumer electronics, TV repair, paging, PA systems, etc. but have never really had to deal with the parameters of speaker-building.

I knew that the cabinet was about 13 cuft, and was looking at the Goldwood speaker to match the volume of the cabinet. I can build the crossover to almost any point needed. I suspect that my 6X9's will handle down to about 150 Hz and sound pretty good. So whatever woofer I would use, would need to be crossed-over accordingly.

[Chris Roemer]

When I remodeled my house, I came up with a void that is 78" high, 18" wide, and 16" deep. At the time I owned a Baldwin organ that used a 15" speaker, and 2 6" speakers. I mounted them on a panel and used the void/box to house them.

Later I acquired a Conn organ, which used 2 15" woofers and a selection of other speakers of various sizes. It came with a wood panel with most of this stuff mounted on, so I took one of the 15" and added it to my panel with the original, and bought a new pair of 6X9" three-way speakers and installed them. Worked pretty good. I chose the 6X9 because it seems that a lot of original organ speakers used 6X9.

Now, I purchased an Allen AP-3. I can't seem to get good low end. Looking closer at a lot of the speakers from Allen and Rodgers, it looks like most of them use a real woofer rather than a stiff-cone 15" speaker.

I would now like to replace the woofers with something else. It appears that my cabinet has a volume of about 13 cu feet. Should I use something like the Goldwood 290-346 woofer. Since I will be putting 2 of these in the enclosure, how does that affect the parameters. Or should I vent the box and use something completely different.

I am looking for any suggestions on what would be my best route to go here.

Those woofers are 8 ohms, so a pair will give you a 4 ohm load, which may or may not be OK depending on your amp. PE's "Woofer Picker" says that a pair of those $40 Goldwoods can reach below 30 Hz, but a PAIR wants a closed box that's twice the size of what you have available.

Dayton's $120(ea.) 295-130 are also 8 ohms (with a pair being 4 ohms) and a pair can also reach below 30 Hz in about a 10 cf vented box. They have more than double the excursion capability of the Goldwoods.

If you need an 8 ohm load for your amp, Dayton's $120(ea.) 295-560 are 4 ohms, and a pair wired in series will be 8. A pair of these can reach below 25 Hz in a 12 cf vented box. They have 10mm of Xmax and I think would be my choice.

Chris

[philiparcario]

If you are building the x over then you have options. 1st a 150hz crossover point. you can use a pair of rss390hf-4 in series to give a load of 8ohms will play to 30hz with ease in a 10cu ft box. The larger size will not hurt the sound you want plus you can leave the box sealed.


2nd.) try to lower the crossover to 120hz see how it sounds.
3d) what are your 6 by 9 speakers?

[RUSSK]

The impedance matching is not an issue. This has 2 channels of audio, but both channels are housed in the same cabinet. In one of the posts, it said about the cabinet volume, that I would need 2 times 12 cu ft in order to put 2 woofers in it. Am I correct?

The 6X9's are Clarion car speakers which I installed when I got the second organ. It was 4 channels of audio, 2 bass and 2 mid-treble. My current one is 2 channels with each channel needing a woofer, and then something for the mid-highs, hence the crossover.

I also need to remember that I am not playing recorded music or video soundtracks through this. It is basically a musical instrument speaker. What really started all of this is the one 15" started sounding funny, so I took it apart and there are some tears in the cone. This speaker is probably 50 years old, as it is the one from my original Baldwin organ. Second thought, it was built in 1953.

But rather than just replace it with something, thought I would ask in order to maybe do it right and match the speaker to the enclosure.

[davepellegrene]

The impedance matching is not an issue. This has 2 channels of audio, but both channels are housed in the same cabinet. In one of the posts, it said about the cabinet volume, that I would need 2 times 12 cu ft in order to put 2 woofers in it. Am I correct?

The 6X9's are Clarion car speakers which I installed when I got the second organ. It was 4 channels of audio, 2 bass and 2 mid-treble. My current one is 2 channels with each channel needing a woofer, and then something for the mid-highs, hence the crossover.

I also need to remember that I am not playing recorded music or video soundtracks through this. It is basically a musical instrument speaker. What really started all of this is the one 15" started sounding funny, so I took it apart and there are some tears in the cone. This speaker is probably 50 years old, as it is the one from my original Baldwin organ. Second thought, it was built in 1953.

But rather than just replace it with something, thought I would ask in order to maybe do it right and match the speaker to the enclosure.

You should be able to fix that speaker. There are kits here that may work. Or you can take it to someone and have them do it. Just a thought.