Balcro

Hello hrnn1234, I've just checked this speaker out on winISD and it comes as no surprise that it is totally unsuitable for bass guitar use. It's a Bass-Mid P.A unit and only handles the nominal power down to about 200Hz !! xMax is feeble at 1.29mm. Below approx 200Hz, xMax was exceeded with a 50watt input! Others may may come along later to give you advice on similarly priced alternatives that are suitable for a closed box. Balcro.

Hi lagartortazo, Having checked out all the choices on your list with winISD, I can't find any that produce a good response in 39litres (half the cabinet net volume). As Phil Starr has said, the Beyma 212 works well enough to be usable. Without touching the existing second port it will have a tuning frequency of about 51Hz. However, it will change the sound balance of the system because it probably has more low bass than the original GK unit but is probably less efficient (a fraction less loud) overall. See winISD graph of the Beyma in 39litres of air space. Double click on the attached thumbnail picture. Over here the Beyma is about €100. You'll have to wait for the reply e-mail to learn the cost of a GK original. Good luck. [b]PS. Don't forget to check that the speaker mounting holes of any replacement are the same diameter as the GK originals.[/b]

[quote name='lagartortazo' timestamp='1489788265' post='3259960'] Around 125 litres, and port measurements are 12x24cm Thank you [/quote] Using your dimensions, I get a nominal internal volume of about 83 litres. Looking at the GK site for the MBE(ii) the internal dimensions appear to be about 115 litres. In both cases there needs to be an adjustment for the volume occupied by the speakers, bracing, port(one or two) and the drive units. Can you confirm that the dimensions you quoted are internal. Balcro.

This says it nicely. http://ianhunter.com/main/ Goodbye Mr Quietman. Thanks for everything.

Maybe the screws/bolts/T-nuts holding the drivers to the front baffle are less then secure. Make sure they're all tight. Don't tighten them excessively, just evenly and firmly. Also tie up & secure any sagging wires. Have you filled in the old tweeter aperture?

Looks like you'll get there, but more by luck than judgement! See here, http://www.eminence.com/pdf/Legend_BP1525_cab.pdf and scroll down to pages 19-21. It's loud, but.... Balcro.

I think I can see an additional function here for my cheapo but worthy Behringer BEQ-700 graphic equalizer (A Boss GEB-7 clone) . I bought it last Christmas for the fun of it and hovered back & forth for days between it and the Caline CP-24 (a clone of MXR 108 10 band equaliser). In the current discussion I would have been better off buying the Caline (circa £30), but since I only play in "the den" I saved about £12. The Behringer and the Boss have a cut & boost slider centred on 50Hz. With full cut, that will take out some of the electronic low level nasties between 40-60Hz and will probably make for a crisper sound without sounding tonally much different. The MXR and the Caline have 31.25Hz (that 0.25 of Hz is so important) slider, so at full-cut will possibly remove 10-12 dB of electronic & acoustic rumble between 20 & 40Hz. That's much more effective and a possible speaker saver. It would also seem to make sense if the equaliser were first in the pedal or rack-mount chain. Clean-in, clean out. That's all good but there may be more. After searching on "Microthumpinator" and "Fdeck" I read (in the other place) an interesting observation from a Mike Arnopol - "Put in the HPF (High Pass Filter) and dialed it up at the highest setting. The clack was gone. As I expected, but so was the low bass. Kept dialing it down. I wasn't a whole lot past the lowest setting when I didn't really notice the missing bass. But no more voice coil smack. The interesting thing---the C8 actually got LOUDER. I think it was because I was no longer using my amp's recources amplifying crap I didn't want to amplify anyways. The C8 as well as the 88 go substantially louder with the HPF. Substantially louder." PS. Search for "Behringer" directs you to "music-group.com", but click on the links & Norton Security pops up with a warning of an unsafe site!! The detail indicates there's a Trojan in the "downloads" section?!

He should have remembered the old adage "if it ain't broke don't fix it". This is from nearly 7 years ago - Lakers v Rocket, game 5 play-off. It's just over 2 minutes - more straight ahead all round. When you get to about 1 minute, turn up the volume and enjoy classic bass tones. https://www.youtube.com/watch?v=EGuEagHDL9M Balcro.

It's probaby all linked back to the DDOS attack on the BBC. That sort of thing usually has a knock-on effect. It will get better.

[url="https://www.youtube.com/watch?v=Amhy7LcAdGQ&list=RDAmhy7LcAdGQ"]https://www.youtube....t=RDAmhy7LcAdGQ[/url] Happy Christmas. PS. Scroll down for comment by Dave Hopkinson.

Have you got the caps-lock key switched on? Balcro

Something(s) nice and simple - http://www.thomann.de/gb/ghs_7200_m_all52_medium.htm http://www.gear4music.com/Guitar-and-Bass/Fender-6-Patch-Cable-2-Pack-Black/JCQ Balcro.

Hello Biro, Well, that's for me. If you send me a PM with your address and a contact phone number, I'll make arrangements to pick it up. Donation to basschat to follow. Balcro. PS. I'll be back in about 6pm.

Hi dave_bass5, Going off at a tangent - your earlier question about outputs into 8 or 4Ohms has already been answered. Rather, picking up on your post #9. Why do you say the MarkBass doesn't like going beyond half way? What speakers are you using with it. As per your equipment profile or something else? Just 1 speaker or 2? Balcro.

Hello there, I don't think it's esoteric, but there's a prety good range of stuff. Oh! And some surpeising prices. http://www.woodbrass.com/en/BUY+WOODBRASS+STORES+PARIS - and scroll down for the addresses. Have a nice few hours. Balcro

Well that's the good news for the day. Onwards and Upwards. All the best for the future. Balcro

It's been a journey. This started me off - "A that's what I want moment" - https://www.youtube.com/watch?v=7TgJU3nmAV8 Then the first Aaahhh, yea, nice, moment - https://www.youtube.com/watch?v=qeltg7TzF9I Older and a little greyer gave me this and the first tingle - https://www.youtube.com/watch?v=Cd52NfJIfY8 - It's very long but worth it. graduation to the second tingle - thanks youtube - https://www.youtube.com/watch?v=TQaXh28tzyo - ignore the moments of background chat, just look at the players face at the end.... and lastly the nirvana of tingle, with tears in the eyes - https://www.youtube.com/watch?v=FqtIlaHIqrs

Well, lookeee here Maxn! Guess what I just found by asking Jeeves. http://www.jblproservice.com/pdf/thiele%20small%20parameters/theile%20parameters.pdf Balcro.

hello Maxm, This site will be good for starters - [url="http://unofficialacousticcontrolcorpmessageboard.yuku.com/directory#.VVUexpM3R_k"]http://unofficialaco...ry#.VVUexpM3R_k[/url] Also try searches on JBL K140 - they're prized treasures for some people. You may also see modern comparisons on the usspeaker.com web-site. Balcro. PS. Oh, and this - http://www.jblpro.com/pages/obsolete.htm

Hello stevebasshead, I've had a look at a few 10" options and there is no shortage of speakers to fit in as a 4x10. Some are pretty weak and others look really great with lots of power handling. Also don't be surprised by a difference in tonal balance. However, as jtuk says , you have to look at the cost. Four new speakers (in general) can cost from £200 to over £325. By the way, what speaker is fitted in the box at the moment? Balcro.

Hi stevebasshead, Once you've fitted the new empty front baffle and secured it against battens or whatever, what (height x width) dimensions remain? Can you still fit two 10" speakers side by side and still leave room for some wood between them? If that's possible, then divide the internal volume by 2 or 4. That gives you the possibilities for volume per drive unit. Some, not all, loudspeaker manufacturers publish data showing a suitable volume for their speaker drive units on the product page. Check their web-sites. For others you'll have take the t/s parameters and run them through winISD to see if the volume is appropriate. Also:- 1. What are you trying to achieve? 2. What is the existing internal volume? 3. Why change from a 15" drive unit? Balcro.

Hello d-b, Judging by the steel basket, those speakers appear to be Celestions, custom made for Trace Elliot. Send an e-mail to - [email protected] -- and give him a full description of your speaker. He can probably tell you a modern equivilant that will be suitable. See also - celestion.com/contact/ Balcro.

I don't have it, but while looking up something entirely different I found that the actors David McCallum ("Duckie" on NCIS) and Bill Nighy have had it. Even Ronald Reagan. Good luck with treatment. Balcro.

[quote name='bootsy666' timestamp='1429099844' post='2747956'] It feels quite light without the speakers, my basson cab weighs more. The drivers are light so it should be too bad, plus my entire band will be helping to shift the thing about. [/quote] Bootsy, I'm with Billfitzmaurice on this one. Wild idea, but when I modelled it in winISD the response curve was unbalanced in the low/mid bass with nearly 4dB lift at 95Hz compared with the level at 230Hz. Despite all the iron employed, low-bass-power- handling was only in the region of 300watts. It looked much more comfortable when set in a closed box of 450 litres!! Only a 1.8dB lift at 125Hz - that would sound very punchy. The good news is the sound level with 300watts input. How about 139dB between 140 & 160HZ!!!! Not quite a Saturn V moon rocket, but keep trying. I suspect the TF1525 is a Bass PA speaker, not really for electric bass. Balcro.

Hello leonardo, I couldn't see any bass-guitar orientated 12" drivers on the Monacor web-site but this 10" unit looks capable of producing adequate bass. None of the other drivers look good for bass. http://www.monacor.co.uk/products/speakerbuilding-pa10-12/vnr/105590/ Although it is listed under the "PA" section, it's specification seems to be up to the job. I ran it through winISD and a single unit seems to be suited to net box volume of 20 - 25 litres. It holds it's full rated power down to fundamental resonance @ 47Hz. Downside: - It's really designed to work with a midrange or tweeter as there is falling output above 2KHz; it will probably sound rather polite and it isn't very efficient, but if nothing else is available, then it's an option. In summary ( as Phil is suggesting ) it's OK, but......but.... Balcro.