Dear Bose,
Here’s a little background on me with regards to Bose audio products.
My name is Nicholas Peper. I'm a professional singer who also plays keyboards and key-bass. I’ve been getting paid to perform since 1965 and I'm now busier than ever. Even at my advanced age of 68 years.
I was an early adopter of the L1 Classic. In fact, I bought 2 PAS 2 B1 Subs at Guitar Center on Sunset Blvd in Hollywood, CA the night that Bose did the first product launch and demo. I sold one of those systems to my drummer and kept the other for myself. I've loved that system and used it successfully for many years. Alas, it has gotten a little heavy for me to lift and tote so, it’s on eBay as I write this.
On December 17, 2017 I purchased the L1 Compact from Sweetwater and have been very happy with it as well.
On April 7th, 2018 I bought the new S1 Pro including the battery pack from Sweetwater and have been extremely satisfied with this unique and versatile speaker which I use primarily as a vocal monitor even on loud Rock gigs. Thank you so much for sending me the Carry Bag/Backpack at no charge.
Last week I received a COOLIS 200Wh-54000mAh Portable Purely Sine Wave Lithium Battery Power Inverter Generator Power Station, with Silent 110V AC/12V DC/5V USB Output that I’d purchased from Amazon for $149.99 (Please see the link below).
https://www.amazon.com/gp/prod...00?ie=UTF8&psc=1
PianoManChuck had mentioned this product in one of his YouTube videos. Mostly he reviews various brands of professional portable keyboards and has been a proponent of using battery power when possible while performing at venues with limited access to power outside or when it’s not practical to run long ungainly extension cords. I’ve trusted his recommendations before with good results, so I thought that I would take a chance on this Coolis device.
My intent was to power a Yamaha mx88 88 note keyboard, Yamaha MG06X mixer and the SingularSound BeatBuddy drum machine for a three to four hour long engagement. Totally off the grid, so to speak.
On the spur of the moment, I decided to try connecting the L1 Compact instead of relying exclusively on the S1 Pro with battery for amplification. I was astounded to find the Coolis capable of powering the L1 Compact and since it has a Pure Sine Wave output, I felt confident that I wouldn’t be causing any damage.
After a total of six and one half hours powering everything except the S1 Pro, the Coolis showed three bars out of a maximum of 5 on the LED display. In other words, about 60% of battery power was still available!
There was no increase in the noise floor coming out of the L1 Compact . The cooling fan on the Coolis never kicked in nor were there any Battery Management alerts.
Even though there are many potential battery solutions out there for L1 Compact users, I lucked out finding one that does the job safely, quietly and for a reasonable price. Others might not be so lucky.
I suggest that if Bose created an Official L1 Compact External Battery Pack Option, many of your loyal customers would be thrilled to add portable power capability to their beloved Bose L1 Compact system(s).
Thank You Bose for your wonderful audio products and for listening to your customers.