man cave audio
02-02-2012, 09:24 PM
:bouncy:e Hi to all forum members!
:confused: I am brand new to this forum and am posting this thread in the hope that someone can give me some advise with regard to my JBL 030 speaker system.
I bought the speakers in the early 70's (assembled in particle board enclosures: D130W and 075HF) The internal dimensions of the cabinets are 19 1/8" W x 29 1/8" H x 14 1/2" D or 4.67 cu ft. The port size is 7 3/8 x 3 3/8 or 24.89 sq inches. The port size, from what I have read is perhaps a little too small (should be closer to 26 sq")
I love the sound of these speakers but find them overly bright and shrill with certain music sources even though the high frequency adjustment has been turned down. Some of this brightness may be attributed to poorly recorded material, and/or component problems (ie: I found the pickering 3000 cartridge much smoother that a Shure type iv). The amplifier I most often used was a hk citation 12 with a citation 11 preamp. I don't believe they contributed to the problem.
I haven't used the speakers for quite a while (on loan to my son ) but have now started to build a man cave room dedicated to audio where I can rediscover these speakers as well as rediscover "vinyl" which I have missed for some time now. Hence the name "Man Cave Audio" Cave man for short will do!
The room will be approx 8x16 and will be devoted to audio for "music nights" and a big screen tv for movie and sound nights. Of course a bar, kitchenette and washroon completes the setup as adjoining rooms. After all, How else could a proper man cave successfully operate?
I will be using an Anthem AV2 amplifier (125 rms/channel) together with the Anthem TLP1 preamp. I have a Sony psx 4 turntable with an orfofon red cartridge and a project v phono preamp. Also using a Rotel CD player
incorporating a burr brown processor.
:confused: Now that you have a general history, here is my problem:
:dont-know: Are there ways to mellow out these speakers either through cabinet design; change in crossover electronics; or by introducing a midrange driver and a completly redesigned crossover system? Are the cabinet/port dimensions ok?
my main goal is to mellow out the sound of these speakers without sacrificing detail and imaging. If adding a midrange driver is feasible, what suggestions for speakers do you have? Should I have the N2400 crossover rebuilt or should I purchase a new crossover (what kind)? If leaving the two way system "as is" and tweeking the speakers/cabinets in other ways is a better solution, then I need to know this!
I am reasonably knowledgable when if come to audio equipment in general but am "techqnically challenged" when it comes to solutions which involve complex design changes.
Any help anone can give me would be greatly appreciated! I want to do right thing "once" without jeopordizing the integridy of the intended speaker design.
Thanks for listening! Look forward to some replys,
Rock on .......The Cave Man
:confused: I am brand new to this forum and am posting this thread in the hope that someone can give me some advise with regard to my JBL 030 speaker system.
I bought the speakers in the early 70's (assembled in particle board enclosures: D130W and 075HF) The internal dimensions of the cabinets are 19 1/8" W x 29 1/8" H x 14 1/2" D or 4.67 cu ft. The port size is 7 3/8 x 3 3/8 or 24.89 sq inches. The port size, from what I have read is perhaps a little too small (should be closer to 26 sq")
I love the sound of these speakers but find them overly bright and shrill with certain music sources even though the high frequency adjustment has been turned down. Some of this brightness may be attributed to poorly recorded material, and/or component problems (ie: I found the pickering 3000 cartridge much smoother that a Shure type iv). The amplifier I most often used was a hk citation 12 with a citation 11 preamp. I don't believe they contributed to the problem.
I haven't used the speakers for quite a while (on loan to my son ) but have now started to build a man cave room dedicated to audio where I can rediscover these speakers as well as rediscover "vinyl" which I have missed for some time now. Hence the name "Man Cave Audio" Cave man for short will do!
The room will be approx 8x16 and will be devoted to audio for "music nights" and a big screen tv for movie and sound nights. Of course a bar, kitchenette and washroon completes the setup as adjoining rooms. After all, How else could a proper man cave successfully operate?
I will be using an Anthem AV2 amplifier (125 rms/channel) together with the Anthem TLP1 preamp. I have a Sony psx 4 turntable with an orfofon red cartridge and a project v phono preamp. Also using a Rotel CD player
incorporating a burr brown processor.
:confused: Now that you have a general history, here is my problem:
:dont-know: Are there ways to mellow out these speakers either through cabinet design; change in crossover electronics; or by introducing a midrange driver and a completly redesigned crossover system? Are the cabinet/port dimensions ok?
my main goal is to mellow out the sound of these speakers without sacrificing detail and imaging. If adding a midrange driver is feasible, what suggestions for speakers do you have? Should I have the N2400 crossover rebuilt or should I purchase a new crossover (what kind)? If leaving the two way system "as is" and tweeking the speakers/cabinets in other ways is a better solution, then I need to know this!
I am reasonably knowledgable when if come to audio equipment in general but am "techqnically challenged" when it comes to solutions which involve complex design changes.
Any help anone can give me would be greatly appreciated! I want to do right thing "once" without jeopordizing the integridy of the intended speaker design.
Thanks for listening! Look forward to some replys,
Rock on .......The Cave Man