당신은 주제를 찾고 있습니까 “altec lansing model 508 – MP3耳機輸出1990年ALTEC LANSING Model 508 喇叭測試“? 다음 카테고리의 웹사이트 https://chewathai27.com/you 에서 귀하의 모든 질문에 답변해 드립니다: https://chewathai27.com/you/blog. 바로 아래에서 답을 찾을 수 있습니다. 작성자 TVmotogod 亞洲車神 陳雙全 이(가) 작성한 기사에는 조회수 2,599회 및 좋아요 11개 개의 좋아요가 있습니다.
altec lansing model 508 주제에 대한 동영상 보기
여기에서 이 주제에 대한 비디오를 시청하십시오. 주의 깊게 살펴보고 읽고 있는 내용에 대한 피드백을 제공하세요!
d여기에서 MP3耳機輸出1990年ALTEC LANSING Model 508 喇叭測試 – altec lansing model 508 주제에 대한 세부정보를 참조하세요
altec lansing model 508 주제에 대한 자세한 내용은 여기를 참조하세요.
Used Altec Lansing 508 Loudspeakers for Sale | HifiShark.com
Used Altec Lansing 508 Loudspeakers for sale on 400+ second hand hifi sites & shops. … Altec Lansing model 508 speakers Pair Tower Working US eBay logo …
Source: www.hifishark.com
Date Published: 10/14/2021
View: 2778
ALTEC LANSING Model 508の仕様 アルテックランシング
トールボーイタイプの3ウェイスピーカーシステム。 低域にはカーボンファイバー振動板を用いた20cmコーン型ウーファーを2個搭載しています。
Source: audio-heritage.jp
Date Published: 1/9/2022
View: 5773
Differences Between the Original 1980s Altec Lansing 508 …
Hello everyone, I was hoping to get some information on the differences between the original Altec Lansing 508 speakers and the remade Altec …
Source: audiokarma.org
Date Published: 7/9/2021
View: 2337
Altec Lansing 508; Worth Buying? – Garage Sale
I have an opportunity to pick up a very pristine set of Altec Lansing 508’s for 100.00. Is this a good deal, I don’t need them but for the …
Source: community.klipsch.com
Date Published: 7/21/2022
View: 9877
주제와 관련된 이미지 altec lansing model 508
주제와 관련된 더 많은 사진을 참조하십시오 MP3耳機輸出1990年ALTEC LANSING Model 508 喇叭測試. 댓글에서 더 많은 관련 이미지를 보거나 필요한 경우 더 많은 관련 기사를 볼 수 있습니다.
주제에 대한 기사 평가 altec lansing model 508
- Author: TVmotogod 亞洲車神 陳雙全
- Views: 조회수 2,599회
- Likes: 좋아요 11개
- Date Published: 2017. 7. 4.
- Video Url link: https://www.youtube.com/watch?v=GYGHgRWIdyU
Altec Lansing model 508 speakers
Refer to
eBay Return policy – eBay Return policy – opens in a new tab or window
for more details. You are covered by the
eBay Money Back Guarantee – eBay Money Back Guarantee – opens in a new tab or window
if you receive an item that is not as described in the listing.
Altec Lansing 508A Speaker System Review price specs
The Altec Lansing Model 508A is a three-way acoustic-suspension speaker system constructed in the popular tower format. Its ruggedly built, rigid wooden cabinet is attractively finished on all visible surfaces in walnut veneer. The cabinet measures 40-1/2 inches high and 11 inches square, plus an additional inch of depth for the removable grille. Each speaker weighs almost 60 pounds.
The frequencies below 750 Hz are radiated by two 8-inch woofers with carbon-fiber cones. Middle frequencies are handled by a 21/4-inch polyimide-and-titanium dome driver, and there is a second crossover at 3,500 Hz to a 1-inch polyimide/titanium dome tweeter. The drivers are vertically aligned and mounted flush with the front panel for minimum boundary diffraction. The two gold-plated multi-way binding posts near the bottom of the rear panel, which also accept single or dual banana plugs, are recessed and angled for easy cable connection.
Altec Lansing specifies the impedance of the Model 508A as 6 ohms, its sensitivity as 90.5 dB, and its bandwidth as 24 to 22,000 Hz. The system is designed for use with power amplifiers rated from 125 to 250 watts per channel. Price: $1,100 a pair.
Lab Tests
We placed the two Altec Lansing 508A speakers about 9 feet apart and 3 feet out from the wall behind them. As usual, we measured the room response with the microphone about 12 feet in front of the left speaker, on its forward axis, and approximately 30 degrees off the axis of the right speaker. The speakers were driven one at a time with a sine wave that was warbled over a one-third-octave range as it swept slowly from 20 to 20,000 Hz.
The curves for both speakers, plotted automatically on a single sheet of logarithmic chart paper, followed similar trends but usually had opposite narrow-band variations over most of the frequency range. We averaged the curves visually to produce a single room-response curve. The room’s high-frequency absorption characteristics had been determined previously with the aid of carefully calibrated reference speakers, and we applied the resulting response correction at frequencies over 10,000 Hz.
Although this technique gives a reasonably good indication of a speaker’s overall energy output into the listening space, room-boundary effects make it invalid at frequencies below a few hundred hertz. For this part of the spectrum, we measure the woofer output separately, with the microphone placed very close to the center of the cone. The resulting plot gives us the woofer’s anechoic response, which we splice to the room curve to derive a corrected, averaged composite frequency response for the speaker.
In this case, the bass-response curve closely matched the portion of the room curve between 80 and 500 Hz, resulting in a believable composite response curve over the full audio range. Its shape correlated well with what we heard from the speakers and showed that the Model 508A’s output was flat within �±2.5 dB from 130 to 20.000 Hz. The output rose slightly at lower frequencies, by an additional 3 dB between 60 and 100 Hz, and fell off at 12 dB per octave below 60 Hz. Overall, the variation was �±4.5 dB from 35 to 20,000 Hz.
The speaker’s measured sensitivity was even higher than rated, producing a 92.5-dB sound-pressure level (SPL) at 1 meter with a 2.83-volt input of full-range pink noise. Minimum system impedance was about 4.5 ohms between 100 and 200 Hz, with a maximum of 14 ohms at 55 Hz and between 600 and 700 Hz. Over most of the audio range the impedance was 6 ohms or greater, justifying the speaker’s 6-ohm rating.
We measured bass distortion with the microphone close to one of the woofers. The constant input level of 2.12 volts corresponded to the signal that would create our reference 90-dB SPL. With that input, the woofer’s distortion was between 0.5 and 1 percent from 50 to 300 Hz, rising to the range of 1.8 to 2 percent from 400 to 700 Hz. Distortion rose smoothly at lower frequencies, to 2.5 percent at 40 Hz, 4.6 percent at 30 Hz, and 6.5 percent at 24 Hz.
We measured the system’s high-frequency horizontal dispersion both on its forward axis and 45 degrees off it. The two curves began to diverge slightly above 6,000 Hz, reaching a 5-or 6-dB difference at 10,000 Hz and showing a large difference above 15.000 Hz.
Our measurements indicated that the true (acoustic) crossover between the woofers and the midrange driver was closer to 500 Hz than the rated 750 Hz. The crossover to the tweeter could not be detected.
As might be expected from its driver complement, the Altec Lansing Model 508A had an impressive power-handling ability. Feeding 100-Hz single-cycle bursts, our amplifier clipped at 1,190 watts into the speaker’s 4.6-ohm impedance with no audible signs of distress from the speaker. Similar results were obtained at 1,000 and 10,000 Hz, with maximum levels of 655 and 820 watts, respectively.
Comments
The Altec Lansing Model 508A projects an aura of quality even before it is connected to a music system. The cabinet finish and workmanship are noteworthy, and it is one of a limited number of loudspeakers whose appearance is not at all degraded by removing its grille. The interior of the cabinet is obviously well braced and stiffened, since rapping any part of it with the knuckles produced a sound like rapping a block of concrete.
But the only real proof of a speaker’s performance is in the listening, and here the Model 508A lived up to expectations in full measure. Its overall sound quality was smooth and balanced, covering the full audio range without obvious emphasis or insufficiency. With certain program material (notably male announcers’ voices on FM radio) there was a trace of warmth associated with the slightly emphasized output in the octave below 100 Hz. On the other hand, when the program contained any real bass content, the two woofers made themselves heard (and felt) in a way that cannot be matched by the many good speakers whose lower limits are around 50 Hz. The Model 508A could generate low-distortion, room-filling output down to the vicinity of 30 Hz, and its high sensitivity does not place unreasonable demands on the driving amplifier.
Considering its size, the Model 508A is somewhat unusual in sounding as good at a 2-foot distance as at 15 feet. The contributions of its four drivers were so smoothly blended that it was impossible to localize each one audibly at distances greater than a few inches. This quality probably has little importance to most listeners, but it serves to demonstrate the successful integration of the system into what is effectively a single sound source.
The Altec Lansing 508A is an excellent combination of first-rate sound, attractive styling, and reasonable size. We found nothing in its physical or acoustic characteristics that merited criticism.
Differences Between the Original 1980s Altec Lansing 508 Speakers and the Remade Altec Lansing 508
Only Altec 508’s I know of are the ones in the Sparkomatic owned era in the 90’s that used “carbon fiber” woofer cones. There’s a pair fairly close to me for reasonable that I’ve thought about picking up a few times…but it’s a 3 hour round trip and I don’t really need them. I usually talk myself out of them. Most people don’t like them because they aren’t “true Altec, which is true. I always thought they sounded rather decent. But I’m one that has owned 2 different pairs of Altec Valencia’s and didn’t care for either pair. A stacked pair of Dynaco A25’s sounded better than the Valencia’s, to me, anyway.
Bottom line, the cabinets are decently constructed and have some weight to them. They got favorable reviews here and there, too. But the Altec “fan boys” dont think much of them. Take those opinions with a grain of salt and try them out if you can get them reasonable enough where you can sell them if they aren’t your cup of tea. I’ve got a pair of Cerwin Vega VS-150’s that sound great and I’d take them any day of the week over Vals. But, again…that’s just me.
What does an 80’s Altec 580 look like? Only ones I see are of the 90’s version. I’d take a pair of the 510’s, 511’s or 512’s, too, if they ever popped up for the heck of it.
Click to expand…
Altec Lansing 508; Worth Buying?
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.
Altec Lansing Model 508
Copyright 2011 GeneralManual.Com. All Rights Reserved. Products and names mentioned are the property of their respective owners. Privacy Policy This page is part of GeneralManual.Com Network
키워드에 대한 정보 altec lansing model 508
다음은 Bing에서 altec lansing model 508 주제에 대한 검색 결과입니다. 필요한 경우 더 읽을 수 있습니다.
이 기사는 인터넷의 다양한 출처에서 편집되었습니다. 이 기사가 유용했기를 바랍니다. 이 기사가 유용하다고 생각되면 공유하십시오. 매우 감사합니다!
사람들이 주제에 대해 자주 검색하는 키워드 MP3耳機輸出1990年ALTEC LANSING Model 508 喇叭測試
- 동영상
- 공유
- 카메라폰
- 동영상폰
- 무료
- 올리기
MP3耳機輸出1990年ALTEC #LANSING #Model #508 #喇叭測試
YouTube에서 altec lansing model 508 주제의 다른 동영상 보기
주제에 대한 기사를 시청해 주셔서 감사합니다 MP3耳機輸出1990年ALTEC LANSING Model 508 喇叭測試 | altec lansing model 508, 이 기사가 유용하다고 생각되면 공유하십시오, 매우 감사합니다.
