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Item # 584205 | Customer Ratings: Ratings ( 4 Based on 7 reviews)

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Rocktron Velocity 300 150W Rack Power Amp
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      Rocktron Velocity 300 150W Rack Power Amp (584205)
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It really can sound and feel just like a tube amp.

The Rocktron Velocity 300 Rack Power Amp was designed in a joint effort between Rocktron and integrated circuitry design engineer Derek Bowers. The Velocity 300 is the first commercially available amplifier to be based on current-feedback technology. This technology provides extremely high-speed, wide-bandwidth amplification. The bandwidth of the power amp section is considerably higher than typical amplifiers based on voltage feedback designs therefore providing much more punch and definition than previous designs have allowed for.

Another of the Rocktron Velocity 300 power amp's innovative features lies in the reactance simulation circuitry (controlled by the front panel "Reactance" control. At the minimum setting of the reactance control, the Velocity 300 will provide the added punch and improved transient response of the high-speed current-feedback design. As this control is turned up, the Velocity 300 will begin to simulate the interaction that takes place between the tube amplifier and the guitar speaker cabinet.

In addition to the high-speed current-feedback design, the Velocity 300 also incorporates Rocktron's unique "Speaker Reactance Simulation" circuitry. This concept is unprecedented in a solid-state amplifier and yields the much-sought-after sound of the most impressive tube amplifiers without the added maintenance and cost and weight of a tube amp.

While other amplifier manufacturers seem to concentrate solely on the harmonic characteristics of the tube itself (and how to recreate them in a solid state circuit), Rocktron suggests it still lacks the tube sound. When put to the test and compared directly with the most popular tube amps, these solid state designs still sound cold and thin.

At the maximum setting of the reactance control, the Velocity 300 will instead sound like a tube amplifier, simulating the interaction between a tube amplifier and a guitar speaker cabinet. The resulting sound is much warmer and fatter, and when compared directly with a tube amp, is virtually indistinguishable.

Rocktron Velocity 300 150W Rack Power Amp Features:

  • Up to 150 watts per channel stereo, up to 300 watts mono bridged
    Easily accessible individual line fuses protect the unit's output devices from failure under extreme conditions
    Thermostatically controlled cooling system ensures that the internal fan will only turn on when the unit reaches a certain temperature.
    Silent on/off switching
    Protective "Overload" circuit automatically shuts the unit down when plugged into an AC wall outlet providing excessively high line voltage.
    Clip LEDs for each channel


Rocktron Velocity 300 150W Rack Power Amp Specifications:

  • Output power: (unabridged) 150 watts at 4 Ohms (per channel), 100 watts at 8 Ohms (per channel), 60 watts at 16 Ohms (per channel); (abridged) 300 watts at 8 Ohms (mono), 200 watts at 16 Ohms (mono)
    Maximum input level: +22.5dBu
    Maximum output level: +31.7dBu
    Maximum gain: 40dB
    Noise floor (typical): +66dBu (A-weighted)
    Dynamic range (typical): 98dBu (A-weighted)
    Distortion (typical): 16 Ohm .025%, 8 Ohm .035%, 4 Ohm .065%; (bridged) 16 Ohm .035%, 8 Ohm .045%
    Frequency response: ± dB (20Hz to 20kHz)
    Dumping factor: 70 (at 8 Ohm)
    Input sensitivity: .3V RMS (at 8 Ohm to rated output)
    Current consumption: 450 watts (at 120 VAC)
    Overvoltage trip points: 100 volts trips at 116 volts, 120 volts trips at 139 volts, 220 volts trips at 260 volts, 240 volts trips at 282 volts


Rocktron Velocity 300 150W Rack Power Amp

Pedals - one year warranty.
Rack gear, digital amps, MIDI Mate footcontroller - 3 year warranty.
Rampage amps - 5 year warranty.

Get your gear covered!

Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

Pro Coverage includes:

  • Accidental damage protection (new gear only)
  • Expedited Repair
  • Free Shipping (for returns or repairs)
  • 100% Coverage for Commercial Use
  • Extended Return Period
  • Extended Price Protection
  • No Lemon Guarantee
  • Free Transfer of Coverage to a new owner
  • Repair Costs Covered for up to 3 years from date of purchase
  • Repairs Can Be Authorized Toll-Free by Phone or the via the web
Product Reviews
(Based on 7 reviews)
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Viewing Reviews 1 - 3 of 7 |
  • Rock Solid

    As reviewed by Dylan on 6/24/2010

    A great piece of gear. Easy to use and equally easy to get a good tone when combined with a decent preamp. I use a Pod X3 Pro running stereo into the Velocity through a 4x12 stereo cab and I love it. Getting good tube-like tone is simple with the reactance control which really warms up the sound and adds good punch to the low end. With the stereo and mono bridge options, it is easily compatible with most cab setups. If it were stolen I would definitely buy it again. 1 rack space and ample power with all the setup options this unit allows make it a worthwhile purchase. Only thing I don't know is how well it cools itself as it is a new purchase, but from most things I've read, this is not an issue for the Velocity. Definitely consider this product. Top of my list as far as solid state power amps go.

    25 of 25 people found this review helpful.
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  • Clean, Crisp and Powerfull.

    As reviewed by John on 8/17/2011

    I'm using this power amp behind my Digitech GSP1101. I can't tell you how much it woke up my system. My sound has never been better! Wish I bought this sooner.

    4 of 4 people found this review helpful.
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  • It Works

    As reviewed by Cameron Pierre on 10/30/2012

    My Digitech GSP 1101 has finally come alive after experimenting with different speaker setups for years I finally took the plunge. Up to this point I had been using a Tubeworks MosValve MV 962 power amp which is a fantastic amplifier in itself, but always felt that something was missing. Enter the Velocity 300. It actually does everything it says on the tin. I am running it into a pair of 1 x 12 cabs loaded with EVs. Rocktron's unique "Speaker Reactance Simulation" circuitry makes a huge difference to the overall sound of the power amp. So far I have gigged it with no problems for 8 months and loving it.

    2 of 2 people found this review helpful.
    Was this review helpful?
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