This is an analog sound machine which doesn’t have a loop as do many other digital sound machine on the market today.  The “loop”  which can be described as a repeating “tick” sound every 3-5 seconds, can often keep people awake at night.   The loop free quality of white noise of the Marsona TSC-330 is very impressive.

First Impressions to select the wave sound which makes it loud then soft and so on to simulate waves rushing in and to select the wave sound which makes it loud then soft and so on to simulate waves rushing in and out.

The tone slide controls listed as “rain” – “waterfall”. At the extremes it does sound like rain or a waterfall, but the best way to view this as a tone control. You can dial it in just to your liking.

Travel:
The whole system weighs only 1 lb. 1 oz. and is 7.5” x 4.5” x 2.25” in size. Some resellers offer an international version that comes with a 220v power adapter for US and international use. . If your without power, you’ll need to buy the optional battery pack for about $15.00. It holds 6 AA batteries and runs the unit for up to 40 hours.

Sound Quality:
The TSC-300 is the only electronic white noise/sound machine we have found that does not loop. The quality is very good! We like being able to adjust the tone. We were able to obtain very high volume without any distortion. Maximum volume measured at 18″ above unit at full volume is 66 decibels.

Pricing:
Suggested retail pricing is $79.95 and $89.95 for the international model (TSC-330I). We have found it for cheaper on the web.

Verdict:
We love the 330, and we recommend it home home and travel use.

Marpac Marsona TSC-330 Video: