dbx Driverack 481

Description
The dbx DriveRack series offers complete integration of all of the elements required to achieve state-of-the-art loudspeaker management. The 481 DriveRack was designed to provide 4 independent input and 8 output channels of processing power that include 31-band graphic equalizers, as well as dbx's industry-standard dynamics processing. All aspects of the 481's features can be controlled by the included dbx Professional Products Interactive DriveWare software. Software updates can also be downloaded instantly from www.dbxpro.com through the RS 232 port.
The DriveRack 481 includes pre-crossover EQ, dual RTAs, notch filters, speaker delays, multiple crossovers and compression/limiting, as well as numerous other features. Dual RTA analyzers can be run simultaneously with RTA source inputs capable of being remotely switched on the fly.


Features
- 4 input and 8 outputs with routing
- 31-band graphic or 9-band parametric equalizer on every input (pre-crossover)
- Dual Real Time Audio Analyzers
- Butterworth, Bessel, and Linkwitz-Riley crossover filters
- 27 different crossover configurations
- Time alignment and transducer alignment delays
- Compressor/limiter on every output
- Speaker compensation EQ (post crossover)
- Multilevel security system
- Separate house and show EQ with individual lockout
- Triple redundant back-up of all parameters when running network, 480R and PC GUI
- TYPE IV Conversion System
- Electronically balanced/RF filtered Euroblock inputs and outputs
- Proprietary RS-485 Control Network
- RS-232 PC interface for computer display and configuration
WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.
Specs
- Inputs
- Number of Inputs: 4
- Connectors: Euroblock
- Type: Electronically balanced/RF filtered
- Impedance: >40kOhm
- Maximum Input Level: Hardware selectable for +30, +22, +14, dBu
- CMRR: >40 dB typical, >55 dB at 1kHz
- Outputs
- Number of Outputs: 8
- Connectors: Euroblock
- Type: Electronically balanced, RF filtered
- Impedance: 120 ohm
- Max Output Level: +25.5 dBu into 1kOhm, +22dBu into 600 ohm
- A/D Performance
- Type: dbx Type IV Conversion System
- Dynamic Range line: >112 dB unweighted, 115 dB A-weighted Type IV
- Type IV dynamic
- range:
- 127 dB with transient material, A-weighted, 22kHz BW
- 125 dB with transient material, unweighted, 22kHz BW
- 119 dB typical with program material, A-weighted 22kHz BW
- Sample Rate: 48kHz
- A/D Wordlength: 24 bits
- D/A Performance
- Dynamic Range: 112 dB unweighted, 115 dB A-weighted
- Sample Rate: 48kHz
- D/A Wordlength: 24 bits
- System Performance
- Internal Wordlength: 48 bits
- THD + Noise: 0.003% typical at +4dBu, 1kHz, 0dB input gain
- Frequency Response: 20Hz-20kHz, +/-0.5dB
- Interchannel Crosstalk: <-85dB at 1kHz, 0dB input gain
- Pre EQ
- Type: One 31-band Graphic EQ per input channel, or 9-band Parametric EQ per input channel RTA can be substituted for EQ in channels 3 and 4
- Range: +/-12 dB range
- Notch Filters
- Number: 1-5 per input channel not to exceed 10 for all input channels
- Pre Delay
- Length: 680ms/channel
- Crossover Type:
- 1x2, 1x3, 1x4, 1x5, 1x6
- 2x3, 2x4, 2x5, 2x6, 2x7, 2x8, 3x4, 3x5, 3x6, 3x7, 3x8, 4x6, 4x8
- Filter Type: Butterworth, Bessel, or Linkwitz-Riley
- Slope:
- 6, 12, 18 or 24 dB/octave for Butterworth or Bessel filters
- 12, 24, 36 or 48 dB/octave for Linkwitz-Riley filters
- Post EQ
- Type: Parametric
- Number: 4 EQ bands per output channel
- Range: +/-15 dB range
- Dynamics Type: Compressor/Limiter with PeakStopPlus
- Attack/Release: Program Dependent
- Linking: All 8 bands are linkable
- Post Delay (Driver Alignment) Length: 170 ms per output channel
- Pink Noise Generator Position: Pink noise inserted on selected input(s)
- Phase Compensation Number: One per output channel
- Amount: 0-180 degrees phase shift
- Output Polarity: Reversible
- Miscellaneous
- Output Transformers: Optional
- Network: Proprietary RS-485 Backbone
- GUI: RS-232 interface for computer display and configuration
- Remote: Optional dbx 480R
- RTA Microphone: Optional
- ROM Upgrade: Flash upgradeable through RS-232
- Power Requirements Watts: 100-240V - 50/60Hz 35 Watts
- Dimensions: 1.75"H x 19"W x 7.90"D
- Weight: 8 lbs.
- Shipping Weight: 9.5 lbs.
Reviews
4.15
185 Reviews
81%
of respondents would recommend this to a friend
Most Liked Positive Review
A very cool guitar, if you're into the 1980's shred thing!
I have been in the market for an 80's style shredder for a few years now. As a big fan of George Lynch, in particular the stuff he did from 1985 to 1990, I've been looking for a used ESP Skulls and Snakes model. That said, they are hard to find on the used market, and they command a premium price. Enter the Friedman Cali model. With its high-output humbuckers, Floyd Rose tremolo, and single volume knob, it's got similar specs as the Skulls and Snakes, and with a much lower point of entry. So, I jumped on it, and I am glad I did. I've spent the last few days getting to know my new Friedman Cali and I can say with confidence this is an excellent guitar for the price. That said, it does have some minor drawbacks that I will gladly look past given how amazing the guitar feels and sounds. My particular guitar was a scratch and dent, which in my case means pre-owned. I say this because when I took delivery of the guitar, I noticed a tremolo stop had been installed, poorly I might add. I confirmed with Friedman they did not install these at the factory; hence my opinion the guitar was previously sold to another customer. In any case, there are no other blemishes or visual imperfections to speak of other than, of course, the factory relic job. After my initial inspection, I put the guitar back in the case to chill out for 24 hours to acclimate to the environment. After that, I remove the old strings, cleaned and polished the frets, lubricated the hardware, applied contact cleaner to the pot and switch, put on fresh strings, and gave it a proper set-up. Some things I noticed during the whole process: the b-string tuner doesn't seem to work as smoothly as the other tuners. These appear to be Hipshot open gear locking tuners, similar to what I have on my Tyler, and I know they usually work very well. Next time I change strings, i will pull the tuner and take it apart for inspection. Another thing I noticed is the screw-in style tremolo bar on the Floyd Rose. This is simply an antiquated design and needs to go the way of the rest of the dinosaurs: extinction. I much prefer the convenience, feel, and adjustability of the drop-in replacement bar, so that is what I installed. Now the tremolo feels expressive and smooth, and the bar drops in quickly. Once I got the Cali set up, I was amazed how comfortable it is to play. Let's first talk materials and craftsmanship. The relic job on the maple neck and fingerboard, combined with the rolled fret edges and slick fret crowning, make this guitar feel like you've been playing it for decades. It's really quite special and something you have to play to understand. because of the compound radius and excellent fretwork, I am able to set the action very low without excessive buzzing. I use 9-gauge strings, and two tremolo springs are sufficient to ensure the tremolo sits parallel to the body while keeping low tension on the strings. Bending is super easy and very smooth, and the tremolo feels so expressive. The guitar just feels slinky and rather addicting to play. On the tone front, it's an absolute monster. The Friedman Classic pickups feature Alnico 5 magnets, which happen to be my favorite for hard rock tones. The bridge pickup sounds thick with gobs of sustain, while the neck pickup is round and fat. Both pickups are articulate and clear, and allow single notes in complex chords to shine through. Rolling back the volume knob will clean up your tone nicely, especially with a good tube amp. These guitars were a collaboration between Dave Friedman and Grover Jackson. Unfortunately, they are no longer working together, and Grover has moved to the Nashville, TN area. I do believe Friedman guitars will be hitting the market again soon, made by someone other than Grover. With that said, the Grover-era are pretty amazing guitars, and may become harder to find. So, if you are in the market for a 1980's super-Strat style shredder, I'd recommend checking out a Grover-era Friedman while you can.
Most Liked Negative Review
Amazing bass with a major flaw
Being mainly a guitarist, this bass is perfectly ideal for what my needs are. A great bass with a great sound/tone for recording, and many option with the knobs to fine tune and tweak that sound to my preference. However, my biggest gripe is that the string action is ridiculously tight for this bass. I like to play with ticker gauge strings, as I typically go for lower tunings, but this bass is (ironically with it being a 5 string) is simply not made for it. The action towards the neck of the fretboard makes thicker strings unplayable. They make contact with the fretboard at around the 2nd-3rd fret, and raising the bridge to compensate isn't enough. To make matters worse, the screws that are used to raise the strings on the bridge are very easily stripped, and I'm struggling to find any sort of replacements for them.
Filters
Best Uses
- Practice4
- Recording3
- Metal songs1
- Rock songs1
- fun. and looking cool shredding for the normies1
Cons
- None5
- Poor Quality2
- Virtually no low end warmth.1
- Kind of expensive1
- Shipping box arrived damaged1
Describe Yourself
- Beginner2
- 74 years old, been playing 60 years.1
- Jazz, rock, classical player for 60 years1
- Metal,hard rock and instrumental rock1
- Retired 64 YO beginning amateur1
Pros
- Sound4
- Attractive3
- Stays in Tune2
- Stays in tune2
- Tone2
Reviewed by 185 customers
Sounds really good
submitted25 days ago
byTrenton
fromGladwin county
This pedal sounds quite good. It is quite customizable. If you do buy this, if you do not have the cord used to power it, there is a battery adapter under the actual pedal part. you just put the black pins on the pedal in and take the pedal off. anyways, really good sound if you want a proper rock or metal distortion/overdrive for an affordable price.
Not too bad for the price
submitteda month ago
byJeff
fromNashville TN
Typical Chinese bling, the sound is lacking.
This drum is just like the vintage ones
submitteda month ago
byJeff
fromSeattle, WA
Play with freelance jazz and rock standards groups. All kinds of gigs and shows. I want to buy one of the sets.
Love this guitar.
submitteda month ago
byLarry
fromMinnesota
Love this guitar. Easy/Good tuning, very playable, thin neck is fast.
Its so good it fits my church setting well
submitteda month ago
byjordan
fromHamilton, new jersey
This product is the best drums i've ever played on because the shells are a nice color and when you tune the drums up, it sounds so good. When you play it in a open space it fills the room and when you play it in an enclosed space it sounds even better. All Im saying is that this is hands down one of the best drum sets.
23862 SYCAMORE DR
submitted2 months ago
byETHAN
fromMission Viejo, CA
Electronics are really good. Was going to use it for jamming and professional playing. However, I could not lower the action due to stripped saddle screws
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