JBL came to mind. I auditioned a new professional-grade JBL monitor and was not overly impressed. By chance, the next day, a pristine pair of ‘s came up. Here is a very superb pair of JBL Professional Monitors from the early 70’s. They are OWX enclosures which were used with several. JBL / L Professional Studio Monitors * Beautifully restored and upgraded Photo. Share |. Previous | Next. JBL / L Professional Studio.
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Import duties, taxes and charges are not included in the item price or shipping charges. They were in production longer than any other JBL main studio monitor, being introduced in and not discontinued until for the and for the These were based on an Altecalways a popular unit, with a “time aligned” network and some enhancements to the horn. A cycle horn would grow half as fast with area doubling every 76 mm.
You needed to keep the networks driving impedance low otherwise the voltage at the compression driver would start to follow the ripple of the impedance curve and make the response worse.
Audiocostruzioni e punto vendita di: Please enter 5 or 9 numbers for the ZIP Code. The series grew after these models. Email to friends Share on Facebook – opens in a new window or tab Share on Twitter – opens in a new window or tab Share on Pinterest – opens in a new window or tab Add to watch list.
JBL Floorstanding Speakers user reviews : out of 5 – 11 reviews –
The sound was good enough and the size was reasonable and it had a good story in the time aligned network. I remember working with Mark Gander on their construction. Get the item you ordered or get your money back. Sell now – Have one to sell?
Used JBL L Floorstanding speakers for Sale |
As mentioned above the high frequency section will have an inherent 6dB per Octave rolloff above 3kHz. It is up to the crossover network to take this rolled off response and makes it flat. If your main horn has the bandwidth then you are better off equalizing a bit than crossing over to a super tweeter at a high frequency.
Economy Shipping from outside US. Un marchio con un inizio veramente tormentato, James Lansing alla fine del aveva un debito per circa These contours or one contour used twice in the case of a by degree horn were then used for the horizontal and the vertical shape.
JBL 4430 Floorstanding Speakers
First, the first order bypass approach still lost a couple of dB at 16kHz, leading to a softer top end than was desired. Log in or Sign up.
Where do I sign up? A passive network can equalize that as long as the inherent sensitivity stays high enough to the highest frequency needed. Learn more – opens in a new window or tab. Anyhow, this rolled off response is the raw jlb that is presented to the horn.
Also a lot of work to get the octave to octave balance right and also to insure the balance of the and were identical even though the was three dB more sensitive.
As a practical issue their sheer size made them a little over the top. Two independent variables were at play here. Then for every frequency where the impedance bumps up the amplifier output voltage ibl actually drop.
Putting a crossover between the main horn and a small super tweeter type horn is problematic, though. If you look at the polar patterns that jhl in the AES paper we wrote you can see that the polars are incredibly uniform from Hz to 16, Hz.
This would work well if the system was floor standing or even if inverted and mounted jl a studio window. This item has an extended handling time and a delivery estimate greater than 34 business days.
Your name or email address: No additional import charges at delivery! At the time JBL had a good line of studio monitors including thethe and the a product I much admired. Add to watch list. Lansing un grande sostenitore nell’utilizzo dell’alnico per i suoi altoparlanti.