Is it worth setting Up?

[kchia59]

Two years ago I have purchased some used audio stuff from a local audio studio company. Here are my items :
1) 2 pairs Altec Compression Driver 291-16K
2) 1 pair Electro-voive 1928 CD
3) 1 pair EV horn HR9040
4) 1 pair EV horn HR4020A
5) 1 pair EVM-15L woofer
6) 1 pair EV-ST350 (829 0166 327) tweeters

I would like to set up a 3 ways system, here are my idea ; Ev ST350 as HF, HR9040 with Altec 291-16K as mid and HR4020A with another altec for bass mid while the EVM-15L used TL606 bass box as sub. (2), any suggestion for using passive cross ? At present my listening room 15ft (W) X 22ft (L) X 10ft (H), my audio stuff that I have are Klyne 6 Pre-amp, pioneer CD PT-07 , Technics FR-956A turntable, Accuphase F15 crossover, Decware SE84CS power amp., Westrex A116 and 2 units Yamaha P1002 power amp. Any idea please suggest,thank you

[Old Guy]

Two years ago I have purchased some used audio stuff from a local audio studio company. Here are my items :
1) 2 pairs Altec Compression Driver 291-16K
2) 1 pair Electro-voive 1928 CD
3) 1 pair EV horn HR9040
4) 1 pair EV horn HR4020A
5) 1 pair EVM-15L woofer
6) 1 pair EV-ST350 (829 0166 327) tweeters

I would like to set up a 3 ways system, here are my idea ; Ev ST350 as HF, HR9040 with Altec 291-16K as mid and HR4020A with another altec for bass mid while the EVM-15L used TL606 bass box as sub. (2), any suggestion for using passive cross ? At present my listening room 15ft (W) X 22ft (L) X 10ft (H), my audio stuff that I have are Klyne 6 Pre-amp, pioneer CD PT-07 , Technics FR-956A turntable, Accuphase F15 crossover, Decware SE84CS power amp., Westrex A116 and 2 units Yamaha P1002 power amp. Any idea please suggest,thank you

OK- in order-in my opinion-
The 1828c or r not 1928 have no place in a HiFi system. They just don't.
Forget about the HR4020A, they won't do midbass and there is a terrible mismatch between their pattern and the 9040.
The EVM 15l won't be a sub no matter what you put it in. It's a mid bass woofer.
Frankly, I doubt the ST350 has any better highs than the 291. There are much better tweeters.
Something else for a sub, the 15l for mid-bass and the 291 for HF is a good place to start. Try the ST350 and see if you like them.

I'd recommend active crossovers.

[GM]

Indeed! Load the 15L in a pioneer's Vb = Vas/1.44 = 6 ft^3, 1.56x Fs (measured or if willing to rely on ancient 43 Hz specs) Fb = ~67 Hz tuning for max power, eff. and short of a full size horn you've got one serious mid bass speaker; add a dedicated separate sub or better yet, multiples for the ~20 - 80 Hz BW and your room's gain below ~25 Hz will lower it a bit for all but the lowest LFE soundtracks.

[kchia59]

OK- in order-in my opinion-
The 1828c or r not 1928 have no place in a HiFi system. They just don't.
Forget about the HR4020A, they won't do midbass and there is a terrible mismatch between their pattern and the 9040.
The EVM 15l won't be a sub no matter what you put it in. It's a mid bass woofer.
Frankly, I doubt the ST350 has any better highs than the 291. There are much better tweeters.
Something else for a sub, the 15l for mid-bass and the 291 for HF is a good place to start. Try the ST350 and see if you like them.

I'd recommend active crossovers.

Thank you for the advice and will look into it

- - - Updated - - -

Indeed! Load the 15L in a pioneer's Vb = Vas/1.44 = 6 ft^3, 1.56x Fs (measured or if willing to rely on ancient 43 Hz specs) Fb = ~67 Hz tuning for max power, eff. and short of a full size horn you've got one serious mid bass speaker; add a dedicated separate sub or better yet, multiples for the ~20 - 80 Hz BW and your room's gain below ~25 Hz will lower it a bit for all but the lowest LFE soundtracks.

Thank you for the suggestion and will check it out

[Old Guy]

the problem with the 4020 is it's pattern is too narrow. You can probably use the EVM 15 and tl cabinet as mid bass.

You have the Accuphase crossover. I would recommend 80 Hz crossover to subs and EVM and 800 Hz to the 291 from the EVM's.

So you need Sub, the proper cards for the Accuphase, and two more power amps.

If you want to go passive crossovers you will likely need a custom crossover. You can likely get some out of the box ones from Parts Express just to get started.


You could just use the EVM's without a sub, but they have nothing much below 80 Hz.

[kchia59]

the problem with the 4020 is it's pattern is too narrow. You can probably use the EVM 15 and tl cabinet as mid bass.

You have the Accuphase crossover. I would recommend 80 Hz crossover to subs and EVM and 800 Hz to the 291 from the EVM's.

So you need Sub, the proper cards for the Accuphase, and two more power amps.

If you want to go passive crossovers you will likely need a custom crossover. You can likely get some out of the box ones from Parts Express just to get started.


You could just use the EVM's without a sub, but they have nothing much below 80 Hz.

Thank you for the information, anyway will try out yours recommendation and see from there