Would anyone know anything about the Infinity Monitor 1A Loudspeakers. Circa 1974. A three way floor stander with what may be an inverted walsh tweeter??
Thanks
Tom

Infinity experts? Well, I like to don the Infinity cap every once in a while and make play at being knowledgeable on the subject. So, I'll give helping you a shot.

For your model, you can find some information and the brochure at this Infinity Classics page. (http://www.infinity-classics.de/infinity/models/Monitor-series-1975/Monitor/body_monitor.html)


Model: Monitor

Introduced: 1973
Dimensions: 96 x 35 x 33 cm
Bass: 1 x 30 cm
Mids: 1 x dome midrange
Highs: 1 x 360° WTL tweeter
Suggested for amplifiers with: 20 Watts per channel
Frequency range: 22 Hz - 21 kHz
Crossover frequencies: 1200 Hz
Suggested price (pair): ???


IIrc, the Monitor series were reasonably well-regarded speakers thanks in large part to the Walsh tweeter. However, the cost of licensing the technology proved to be prohibitive, so Arnie Nudell et al decided to invent a better driver -- the EMIT that came out with the next series, the Quantum Line Source.

- JP

Infinity experts? Well, I like to don the Infinity cap every once in a while and make play at being knowledgeable on the subject. So, I'll give helping you a shot.

For your model, you can find some information and the brochure at this Infinity Classics page. (http://www.infinity-classics.de/infinity/models/Monitor-series-1975/Monitor/body_monitor.html)



IIrc, the Monitor series were reasonably well-regarded speakers thanks in large part to the Walsh tweeter. However, the cost of licensing the technology proved to be prohibitive, so Arnie Nudell et al decided to invent a better driver -- the EMIT that came out with the next series, the Quantum Line Source.

- JP
Wow that was quick! :) That is exactly what I was looking for. Thanks! I wonder why Google didn't turn that up. Just FYI the original owner said he paid $900 for them.
Thanks again
tom

Infinity experts? Well, I like to don the Infinity cap every once in a while and make play at being knowledgeable on the subject. So, I'll give helping you a shot.

For your model, you can find some information and the brochure at this Infinity Classics page. (http://www.infinity-classics.de/infinity/models/Monitor-series-1975/Monitor/body_monitor.html)



IIrc, the Monitor series were reasonably well-regarded speakers thanks in large part to the Walsh tweeter. However, the cost of licensing the technology proved to be prohibitive, so Arnie Nudell et al decided to invent a better driver -- the EMIT that came out with the next series, the Quantum Line Source.

- JP
:ntwrthy:

Infinity experts? Well, I like to don the Infinity cap every once in a while and make play at being knowledgeable on the subject. So, I'll give helping you a shot.

For your model, you can find some information and the brochure at this Infinity Classics page. (http://www.infinity-classics.de/infinity/models/Monitor-series-1975/Monitor/body_monitor.html)



IIrc, the Monitor series were reasonably well-regarded speakers thanks in large part to the Walsh tweeter. However, the cost of licensing the technology proved to be prohibitive, so Arnie Nudell et al decided to invent a better driver -- the EMIT that came out with the next series, the Quantum Line Source.

- JP

Show off :yes: . Who's next, anyone? I'd be curious to here them with a spec of 22Hz's for the low range :scratch2: . I'm no expert but I know what sounds good.

mac

I remember this speaker well. I am not sure it sold for as much as 900 at the time, but it was probably pretty close to that. I heard this speaker on several occasions when it was a popular model in the Infinity line, and it was a wonderful speaker. The Walsh tweeter really gave this speaker some tremendous imaging capabilities, and the midrange and large woofer were not bad either. This was a sweet sounding floorstander.

Take care of the walsh tweeters. They are no longer available. The cabinet is ported. Infinity would put heavy goop on the woofer to move the low frequency resonance down, but I'm sure the 22Hz is a lie. These speakers do image well, and are rock and roll in balance.

I'd be curious to here them with a spec of 22Hz's for the low range :scratch2:
Infinity would put heavy goop on the woofer to move the low frequency resonance down, but I'm sure the 22Hz is a lie.
The specs don't include the +/- dB data. So, they could very well reach 22 Hz, though they could very well be 12 dB down by that point. This is all too common with speakers as a means for the manufacturer to advertise a more impressive freq response than could ever be reached in the typical +/-3dB measure. However, Infinity tended to be much more honest with their better offerings than many of their contemporaries. So, though they're likely down further than 3 dB at 22 Hz, in room the response may actually be not that much more down.

Now, if that bass driver was a Watkins driver, I'd scoff at the 22 Hz measure and consider it much too conservative. I've measured mine doing incredible things.

- JP

Now, if that bass driver was a Watkins driver, I'd scoff at the 22 Hz measure and consider it much too conservative. I've measured mine doing incredible things.

- JPHave you ever heard the DSOTM heartbeat through Infinitesimals? These had 4" watkins woofers and wouldn't double until you got moderately loud.

Have you ever heard the DSOTM heartbeat through Infinitesimals? These had 4" watkins woofers and wouldn't double until you got moderately loud.
'Fraid not, but I'd love to get my hands on a pair someday. I hear they're supposed to have incredible sound for such little speakers, which size-to-performance were only surpassed by Infinity's later Modulus system (that I'd really love to have). When I mentioned the Watkins woofers, I wasn't talking about the 5" in the Infinitesimal, but the 12" that was the standard in the higher end models through several series back in the late '70s through the early '80s.

http://www.infinity-classics.de/infinity/models/Reference-series-1978-klein/RS_brochure_RS_0.1.jpg

- JP