Archive | Loudspeakers RSS feed for this section

Dick Sequerra Model 7 Pyramid Metronome Speakers

6 May

Dick Sequerra Pyramid Metronome 7 Speakers

Dick Sequerra Model 7 Pyramid Metronome Speakers

Originally produced in the 1980's, the 2-way Sequerra Model 7 is still available new today!

[...]

Acoustic Research AR-4X Loudspeakers

5 May

 Acoustic Research AR-4X Speakers

Acoustic Research AR-4X Loudspeakers

The AR-4X was built on the existing AR-4 speaker fro Acoustic research, but changed the model of a tweeter based on AR-4 which was put on the market in 1965 and called explosive popularity.

This acoustic suspension design two way speaker features a 6cm corn type tweeter and a  20cm corn type Woofer with a doped cloth surround

[...]

JBL L100 Century Speakers

18 Feb

JBL L100 Century Vintage Speakers

Photo Credit: Starsky on eBay

JBL L100 Century Speakers

Irv Stern came up with the felicitous name of "The Century" to go with its L100 sales number. After its introduction at the 1970 summer Consumer Electronics Show in Chicago, the L100 went on to become not only JBL's most successful product up to that time but, from all indications, the best-selling loudspeaker system of the decade.

 

[...]

Acoustic Research AR-90 Speakers

4 Dec

Acoustic Research AR-90 Speakers

 

Acoustic Research AR-90 Speakers

The three most distinctive applications of this technology in the AR-90s are the Acoustic Blanket, the vertical, upper-range driver array, and the positioning of the two woofers, one on each side of the enclosure.   The AR-9 is the big brother to this one. The AR-90 and AR-9 share the same mid and high drivers, but 2 x 12" woofers in each cabinet instead of 2 x 10".

System 4 ways, 5 speaker acoustic suspension system, and a Tallboy type
Use unit For low-pass: 25cm corn type x2
For inside low-pass: 20cm corn type
a crown -- : for regions -- a 3.8cm dome shape
For high regions: 1.9cm dome shape
Frequency response 23Hz - 30kHz
Low-pass play frequency 32Hz -3dB
System Q 0.8
Output sound pressure level 87dB/W/m
Impedance 4ohms (a minimum of 3.2ohms)
The continuation maximum input 150W
The maximum input 300W
Crossover frequency 200Hz, 1.2kHz, 7kHz
Level control Inside low-pass: Three-step switching
mid-high range: three-step switching
High region: Three-step switching
Content volume 90L
Dimensions Width 368x height 1102x depth of 386mm
Weight 37kg

 

[...]