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MF MD HG July Financing 7-22-14

SWR SM-900 Bass Amp  

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Product #482000

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  • SWR

    Top of the SWR line!

    The SWR SM-900 Bass Amp has the power, the sound, and the versatility bass players dream of. It can be run mono, stereo, or biamped and delivers 350W RMS stereo and 800W mono into 4 ohms. It has 2 independent and footswitchable 3-band, semi-parametric EQs, sidechain stereo and mono effects loops, an effects blend control, tuner send, adjustable limiter, a built-in crossover, and an XLR record out with pad and ground lift. Fan cooled, rackmountable.

    Features

    • FRONT PANEL:
    • All tube preamp gain stages
    • Dual independent input jacks compatible for both active and passive instruments
    • Gain control with LED peak clipping indicator
    • Limiter with variable threshold control
    • Exclusive Aural Enhancer circuitry
    • Master volume control w/clip LED indicator
    • Active bass and treble controls
    • 2 independent switchable
    • 3-band semi-parametric EQs
    • EQ footswitch
    • Effects blend control
    • Tuner send
    • Electronic crossover
    • Rackmountable
    • Bi Amp Crossover Point Control: 100Hz to 1000Hz
    • Crossover Slope: 12 dB per octave
    • Rack Handles
    • REAR PANEL:
    • Stereo and Mono Effects Loop
    • Balanced XLR Output with select switch for Line or Direct Mode
    • Ground lift & pad control
    • High and Low Crossover Outputs
    • Power Amp Assign Switch selects Bridge or Stereo Mode
    • SPEAKER OUTPUTS:
    • 2 - 1/4" jacks each for Left and Right Stereo Out
    • One Speakon jack for Left and Right Side Output
    • One Speakon Output Jack for Mono Operation
    • Speaker fuses (x2): 3AG, 10 Amp, Fast Blo
    • Line Fuse: 3AG, 8 Amp, Slow Blo
    • On/Off Switch
    • INTERNAL:
    • (1) 12AX7 Preamp Tube
    • Cooling fan
    • FREQUENCY RESPONSE: (Power amplifier): -3dB @ 20Hz and 40KHz
    • SENSITIVITY:
    • Full output, 8 ohm load, 100Hz
    • Passive Input Jack: 50 millivolts
    • Active Input Jack: 200 millivolts
    • Power Amplifiers (Effects Return Jack "in"):1.6 volts
    • DiISTORTION:
    • Power Amplifiers (Effects Return Jack "in"): 0.03% THD
    • I.M. Distortion: 0.06%
    • System Distortion
    • (Gain and Master Volume full, Enhancer at minimum
    • and Tone controls set flat): 0.4% THD
    • SIGNAL TO NOISE RATIO: -75dB (EQUIVALENT INPUT NOISE: 8.9 microvolts
    • INPUT IMPEDANCE:
    • Passive/Active Input: 800kOhms
    • Active Input: 60kOhms
    • Effects Return: 27kOhms
    • OUTPUT IMPEDANCE:
    • Effects Send: 100 Ohms
    • Tuner Send: 100 Ohms
    • XLR:1.5kOhms
    • Crossover High and Low Outs: 100 Ohms
    • SUGGESTED SPEAKER ENCLOSURES:
    • Megoliath
    • Goliath Senior
    • Big Bertha
    • Goliath III
    • SUGGESTED SPEAKER COMBINATIONS:
    • (2) Goliath IIIs
    • (2) Son Of Berthas
    • (1) Goliath III & (1) Son Of Bertha
    • (1) Goliath III & (1) Big Ben

    You're serious about your music. Get a head that matches your commitment. Order today.

     

    SM-900 Bass Amp Specifications:

    • DIMENSIONS: 19" W x 3-9/20" H x 13-3/4" D
    • WEIGHT: 26 lbs.
    • POWER OUTPUT:
    • Bridge/Mono Mode 900 Watts @ 4 Ohms, 650 Watts @ 8 Ohms, 440 Watts @ 16 Ohms (minimum load = 4 Ohms)
    • Stereo Mode (per side): 400 watts @ 4 Ohms, 240 watts @ 8 Ohms, 144 watts @ 16 Ohms (minimum load = 2 Ohms)
    • DISTORTION:
    • Power Amplifiers (Effects Return Jack "in"): 0.03% THD
    • I.M. Distortion: 0.06%
    • System Distortion (Gain and Master Volume full, Enhancer at minimum
    • and Tone controls set flat): 0.4% THD
    • SIGNAL TO NOISE RATIO: -75dB (<8 millivolts typical)
    • EQUIVALENT INPUT NOISE: 8.9 microvolts
    • INPUT IMPEDANCE:
    • Passive/Active Input: 800kOhms
    • Active Input: 60kOhms
    • Effects Return: 27K Ohms
    • OUTPUT IMPEDANCE
    • Effects Send: 100 Ohms
    • Tuner Send: 100 Ohms
    • XLR:1.5kOhms
    • Crossover High and Low Outs: 100 Ohms
    • SUGGESTED SPEAKER ENCLOSURES
    • Megoliath
    • Goliath Senior
    • Big Bertha
    • Goliath III
    • SUGGESTED SPEAKER COMBINATIONS
    • (2) Goliath IIIs
    • (2) Son Of Berthas
    • (1) Goliath III & (1) Son Of Bertha
    • (1) Goliath III & (1) Big Ben
    Customer Reviews
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    Review Snapshot®

    by PowerReviews
    SWRSM-900 Bass Amp
     
    4.0

    (based on 16 reviews)

    Ratings Distribution

    • 5 Stars

       

      (9)

    • 4 Stars

       

      (2)

    • 3 Stars

       

      (2)

    • 2 Stars

       

      (2)

    • 1 Stars

       

      (1)

    Most Liked Positive Review

     

    Review

    I have the Pre-Fender SWR sm 900 model I have no issues with overheating, Swr was purchased by Fender musical instruments in 2003 and the amps just don't sound the same as when SWR...Read complete review

    I have the Pre-Fender SWR sm 900 model I have no issues with overheating, Swr was purchased by Fender musical instruments in 2003 and the amps just don't sound the same as when SWR was manufacturing these amps. My Pre-Fender model has all the same features like the newer models but in my opinion you get better bottom and better highs for slapping with the pre-Fender models I have mine in a rack case and it's been working just fine I use a 4 ohm SWR Goliath III cab and a 4 ohm swr Son Of Bertha cab (upgraded the driver to a 4 ohm driver)in stereo mode and it has an awesome tone. just be cautious if you happen to buy one of the newer models. If it starts to give you problems return the unit right away.

    VS

    Most Liked Negative Review

     

    A powerful tool with great tone

    I owned this SWR amp for about 5 years. I eventaully sold this 25+ lbs amp and got an 8 lbs build-your-own Markbass MoMark module system head.

    When I set...Read complete review

    I owned this SWR amp for about 5 years. I eventaully sold this 25+ lbs amp and got an 8 lbs build-your-own Markbass MoMark module system head.

    When I set the SM-900 to full power, mono bridged at 4 ohms, it would give out a slight hum. And when I used small cabinets and set the amp to Stereo mode, it only kicked out about 250 watts at 8 ohms per side. But you can push big cabinets well with this amp.

    It came with an EQ footswitch. Never used it.
    When you combine the 2 EQ's, the knobs cut/boost 7 db. And when you just use 1 EQ, the knobs cut/boost a lot more db. This got confusing when I was turning knobs up and down and not getting the sound I wanted. so I just used the bottom EQ. The 3-band semi-parametric EQ was my favorite feature. You can leave the bass and treble controls in the center and just use the low-mid and high-mid as your bass/treble.

    The SM-900 has a crossover feature for sending the highs to 1 cab and lows to another. Never used it.
    I've always felts it's best to make the most out of your cabinets and send out all the low &amp; high frequencies you got.

    Overall, the tone is great and that's probably what I miss the most. When I was looking to downsize my setup, I had my eye on the SWR Headlite. But for the price, I would really expect more than 400 watts at 4 ohms. Maybe one day SWR will come out with a high-power head that doesn't weigh a lot.

    Reviewed by 16 customers

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    1.0

    A powerful tool with great tone

    Comments about SWR SM-900 Bass Amp:

    I owned this SWR amp for about 5 years. I eventaully sold this 25+ lbs amp and got an 8 lbs build-your-own Markbass MoMark module system head.

    When I set the SM-900 to full power, mono bridged at 4 ohms, it would give out a slight hum. And when I used small cabinets and set the amp to Stereo mode, it only kicked out about 250 watts at 8 ohms per side. But you can push big cabinets well with this amp.

    It came with an EQ footswitch. Never used it.
    When you combine the 2 EQ's, the knobs cut/boost 7 db. And when you just use 1 EQ, the knobs cut/boost a lot more db. This got confusing when I was turning knobs up and down and not getting the sound I wanted. so I just used the bottom EQ. The 3-band semi-parametric EQ was my favorite feature. You can leave the bass and treble controls in the center and just use the low-mid and high-mid as your bass/treble.

    The SM-900 has a crossover feature for sending the highs to 1 cab and lows to another. Never used it.
    I've always felts it's best to make the most out of your cabinets and send out all the low &amp; high frequencies you got.

    Overall, the tone is great and that's probably what I miss the most. When I was looking to downsize my setup, I had my eye on the SWR Headlite. But for the price, I would really expect more than 400 watts at 4 ohms. Maybe one day SWR will come out with a high-power head that doesn't weigh a lot.

    Comment on this review

     
    5.0

    Review

    Comments about SWR SM-900 Bass Amp:

    Tons of tonal versatility with that two 3-way semi parametric EQ's. You can set the frequencies and cut/boost. Most amps just let you cut/boost. The 2-channel power amp lets you plug in all kinds of cabs if you wish. It has a "crossover" if you want to send the highs to one cab and the lows to another, but I've never used it that way. When I purchased it, I almost went with the Mesa Pulse 600 (5-way semi-parametric EQ), but the Mesa had less kick and a one-channel power amp.

    Comment on this review

     
    5.0

    Review

    Comments about SWR SM-900 Bass Amp:

    I have the Pre-Fender SWR sm 900 model I have no issues with overheating, Swr was purchased by Fender musical instruments in 2003 and the amps just don't sound the same as when SWR was manufacturing these amps. My Pre-Fender model has all the same features like the newer models but in my opinion you get better bottom and better highs for slapping with the pre-Fender models I have mine in a rack case and it's been working just fine I use a 4 ohm SWR Goliath III cab and a 4 ohm swr Son Of Bertha cab (upgraded the driver to a 4 ohm driver)in stereo mode and it has an awesome tone. just be cautious if you happen to buy one of the newer models. If it starts to give you problems return the unit right away.

    Comment on this review

    (1 of 1 customers found this review helpful)

     
    4.0

    SM-900

    By Mike -xime6

    from Youngstown

    Comments about SWR SM-900 Bass Amp:

    Best sounding bass amp I have ever played through but... gets really hot when kept in a rack-mount case... cool air is sucked in from the back and pushed out through a vent on the side of the amp causing the heat to stay inside the case rather then being pushed out. Other than the heat issue, this is the best amp I have ever used but I believe I'm going to switch back to a GK 1001 RBii because the heat issue scares me (you might be ok with it but i'm not) for example after using this head for 2 hrs this weekend the amp was so hot, you couldn't touch any of the metal on it (and thats with me not pushing it, I had the gain around 11 and volume at 1 and the eq was pretty much flat.)

    Comment on this review

     
    2.0

    Loud in a bad way

    By Adam-zoZP7

    from Atlanta

    Comments about SWR SM-900 Bass Amp:

    This amp is incredibly loud because of bad engineering to the cooling fans. I have had it checked out by more than one SWR certified warranty center. It sounds like a vacuum. Also, two transistors have blown and the AC unit have failed. This is all within the first year of new purchase while remaining rackmounted and used 3-4 times per week. On the upside, I do really like the sound and power the tube preamp gives, just is too loud to function.

    Comment on this review

     
    4.0

    Sounds SWEET, Runs Hot

    Comments about SWR SM-900 Bass Amp:

    As a bass player, I am always in the search for the ultimate 'bass tone' from my gear. Of course, this changes everytime I play - but regardless. Recorded in NYC with this guy, and the tracks sounded PHAT. Full bass tones with just the perfect amount of grind. Loved it so much, I went and bought one for gigging. Halfway through my first practice, she temp'd out and shutoff. After a month of this I gave up and sold it. Synopsis: AWESOME recording amp, SUCKY live amp.

    Comment on this review

     
    5.0

    GIVE ME MORE!

    By exz5string

    from Grass Lake, MI

    Comments about SWR SM-900 Bass Amp:

    I love this head, been playing with it for about 5 years now with no issues. What more could you want from a bass head? 900 watts of killer tone! Dual eq is nice for switching styles on the fly. Limiter helps from popping speakers if your not running through a good enough cab. I'm running through David Eden 4x12 dual ported cab with Cort Curbow 5 string bass. Plans to add dual 15" or single 18" cab for a super low end and to take advantage of the built in crossover! Get one, you won't regret it!

    Comment on this review

     
    2.0

    Bummed

    By Anonymous

    from Undisclosed

    Comments about SWR SM-900 Bass Amp:

    I just bought an SWR SM-500. It sounds amazing. I thought I had found my ideal amplifier. I rehearsed with it once. The next time I used it at a show, it cut out twenty minutes in to the set due to excessive heat. I was lucky enough to have a back up, but it took about five minutes to reset itself before it would power back on. There is nothing worse that losing power half way in to a song with hundreds of people staring at you. I will sadly be returning it. I loved the sound, but it simply isn't well engineered from a cooling standpoint.

    Comment on this review

     
    5.0

    SWR SM-900 BASS HEAD

    By Gonzobassman

    from Evansville,In.

    Comments about SWR SM-900 Bass Amp:

    This monster has always been my favorite!I actualy prefered it in full range stereo,as opposed to bi-amped,with a Big Ben 18,and aJr.2-10.I believe you could plug a log into this setup,and still pull an alright tone,but when I plugged my StingRay-5 into it,the whole band got a little weak in the knees!!!My rack took about a 4 foot fall,and I was sure this amp was HIT,but when I took the top off,all that I had to do was resolder the contact points on one capasitor.I really liked the feature where you can set-up two seperate,foot switchable EQs,thats great for switching basses.With all the patching thats possible with this amp it is truly a gearheads dream come true!Bravo SWR!

    Comment on this review

     
    3.0

    Didn't do it for me.

    By Stratusphere Bass

    from No Answer

    Comments about SWR SM-900 Bass Amp:

    I took it home and plugged it into 2 15" speaker cabs from Kustom, played with my Spector and got nothing. Both active and passive. I plugged into my Kustom and got excellent sound. This didn't get loud in the store, but I didn't turn it up. Tone was great, but I'm so disappointed because SWR is so nice.

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