As you may have seen already, the Rockford Fosgate Punch 150HD was rated at the same 75x2 at 4 ohms and delivered nearly 120x2 at 4 ohms on the test bench. Orion HCCA models come to mind, but there were others from US Amps and Phoenix Gold, to mention a few.Īs for the power output test, I was anticipating Soundstream to rate the Reference 300 conservatively. Only a handful of amps were rated to handle these loads. The ability to drive 1/2 ohm loads was a rarity back in the early 90's. Soundstream Reference Series Design Features Soundstream Reference 200/300/500 Power Ratings at 12vĪlso, here are some of the design specs of the Soundstream Reference Series amplifiers: See power output specs from the manual below: High power modes are designed for loads down to 1 ohm stereo or 2 ohms mono. The Reference 300 is rated to handle 1/2 ohm loads in stereo or 1ohm modes in mono, while in the high-current mode. One switch controls high power or high current mode, while the other allows switching between mono / coherent stereo / mixed-mono modes. There are also two openings on the bottom of the amp with switches. ![]() It has no internal crossover and as with earlier Soundstream amps, all connections are made on one side. The Reference 300 is a no-frills old school amp. If you've missed it, I've already done an overview and RMS watt output test of the Phoenix Gold MS-275 and Rockford Fosgate Punch 150HD. I recently picked up a Soundstream Reference 300 and couldn't wait to add it to my old school 150 watt (75x2 RMS) amp tests. Well, these days, I spend some of my free time bench testing some of these amps I always wanted back in the day. ![]() I drooled over the Phoenix Gold MS series, Rockford Fosgate HD series, Soundstream Reference series, just to mention a few. It was very rare to come across a test I actually cared about, but maybe once a year or so. I recall back in the early 90's patiently awaiting my monthly Car Audio magazines so I could see amp tests. Soundstream Reference 300 on the Test Bench
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