Can the unit be used to tune by ear, i.e. without an RTA?

I wouldn't in order to pull out all the details bit one is supposed to provide.

Does this include the DRC?

Hi Jay F,Mine included the DRC (mini controller module that you mount on the dashboard). But be forwarned: I was ripped off bigtime. I bought mine through Amazon as NEW IN BOX. For $800 or thereabouts. When I opened it, it looked complete. It looked like from the factory. It was not. It had been completely gutted. All jumpers missing. No firmware. All configs deleted. Completely devoid of any intelligence. It took a pro installer 2 days and 3-4 hrs on the phone with Audison to get the processor back into working order. I filed a claim but I was not reimbursed. The seller never responded. I complained to Amazon but after a few exchanges, I dropped the case. The unit works now, but probably will never function as well as a genuine factory-fresh unit. It still has power-up pops and also drains my car battery, so I need to unplug it from power whenever I leave the vehicle off for more than a couple of days. A new one probably has a power-off program that can be configured, or the installer wasn't as good as I thought and did not install an inline power-off switch. Sorry for the rant. Just be careful. Know the seller - WELL!!

Does it make the bass sound cleaner ? Tighter?

Yes you can adjust the bass and highs better and more cleaner

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🎵 Elevate your drive with studio-grade sound precision!

HANDS FREE READY - Built-in phone input for effortless cellular hands-free integration on the go.
ROBUST COMPACT - Sleek 22.5 x 15 x 3.2 cm design with premium build quality, perfect for any car setup.
ULTIMATE CONNECTIVITY - Seamlessly integrate with 10 pre-amp and 8 speaker-level inputs plus optical & S/PDIF digital inputs.
TAILORED SOUND CONTROL - Fine-tune every channel with 32-band EQ, electronic crossover, and digital delay for perfect acoustics.
PRECISION AUDIO MASTERY - Harness the power of a 32-bit DSP processor for crystal-clear sound sculpting.

The Audison bit One DSP is a high-end digital signal processor designed to maximize your car audio system’s performance. Featuring a 32-bit DSP processor, 24-bit AD/DA converters, and extensive input/output options including 10 pre-amp and 8 speaker-level inputs, it offers unparalleled sound customization. Each channel supports 32-band equalization, electronic crossover, and digital delay, all adjustable via PC software. Compact and robust, it integrates hands-free phone input and supports optical and electrical digital inputs, making it the ultimate upgrade for audiophiles seeking premium in-car sound.

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Brand	Audison
Product Dimensions	22.5 x 15 x 3.2 cm; 2.44 kg
Item model number	bit-one.1
Manufacturer	Audison
Colour	Black
Audio Details	Speakers
Are Batteries Included	No
Item Weight	2.44 kg
Guaranteed software updates until	unknown

Audison bit One DSP Signal Interface Processor Digital Audio Sound + DRC Remote

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