SWR Sound SM-1500 manual Normal Mode-the center knob is left master and the outer

Front Panel

N.BOOST LEVEL—Adjusts the level of signal boost.

O.BOOST—Press in to engage the Boost circuit; useful for solos. Boost can also be engaged from the footswitch.

P.PREAMP CLIP LED—Illuminates when clipping (overdriving) occurs anywhere in the preamp signal path before the Effects Loop. For the cleanest sound, set Gain {Q} and other front panel controls so that the Preamp Clip LED barely flickers at your instrument’s peak output levels. Note that preamp clipping is not harmful to your amplifier (unlike power amp clipping), therefore reduce Gain only if you hear unwanted preamp distor- tion.

Q.GAIN—Adjusts the signal level of the preamplifier. Your equal- ization, tone and effect levels all contribute to the preamp sig- nal level and should be adjusted before Gain. NOTE: Gain is the primary control for setting the output level of Effects Send {FF}.

R.AURAL ENHANCER™—A trademark SWR® feature for 20 years, the Aural Enhancer brings out the fundamental low notes of the bass, brightens high-end transients and reduces certain frequencies that “mask” the fundamentals. The ultimate effect is a more transparent sound that opens up the sibilant characteris- tics of all instruments without being harsh.

How the Aural Enhancer works: Think of it as a variable tone control that changes frequency range AND level according to where you set the Aural Enhancer control:

As you rotate the control clockwise from the “MIN” position, you are elevating low, mid, and high frequency levels in ranges that are different, yet complementary to the Bass and Treble tone controls. The “2 o’clock” position—a favorite for many players—brings out both low end fundamentals and crisp highs while at the same time, adds a little lower midrange helping you to cut through the band. Then, as you rotate further clockwise, selected mids will drop off—specifically, a group of frequencies centered around 200Hz. While apparent, the Aural Enhancer is gentle compared to the extreme effects you can create with the basic tone controls.

S.BASS—Adjusts low-frequency signal response ±15dB centered around 70Hz.

T.EQUALIZER SELECT—You can switch between two indepen- dent 3-band equalizers by pressing "1/2" or use both together as one 6-band equalizer by pressing "1+2" as indicated by the LEDs. EQ Select can also be engaged from the footswitch (hold 1 second for 1+2).

U.SEMI-PARAMETRIC equalizeRS—First, use Equalizer Select {T} to choose the Equalizer set that you want to use, then use the corresponding controls to make adjust- ments. Each EQ control has an inner knob and

outer ring: the inner Level knob adjusts signal

response (±15dB) in the range set by the outer Frequency ring knob. NOTE: Any EQ control with

Level set to “0” will have no effect on your signal.

 TIP:  If you need to “cut through” the band, try boosting response in the 200–400Hz range. If you like a more transparent or “scooped” sound, try cutting in the 800Hz range.

V.Treble—Adjusts high-frequency signal response ±15dB cen- tered around 3kHz.

W.FOOTSWITCH—Plug in the (included) footswitch with any length guitar or speaker cable to enable remote selection of the Bass Intensifier, EQ Select, Effects Loop and Boost as indicated by the LEDs. Multiple footswitches can be connected together for multiple access points (stage left and stage right footswitch- es)!

X.EfFECTS Blend—Controls your effects level, or more precise- ly, the ratio of direct signal (dry) mixed with effects loop signal (wet). Set to "DRY" when not using any Effects Return jacks {FF}.

Y.Master VolumeS—Adjusts the output of the power amps separately (stereo/bi-amp), or as one (mono/bridge), according to the Normal/Bridge {PP} selector on the rear panel:

•	Normal Mode—the center knob is left master and the outer
	ring knob is the right master volume.
•	Bi-AmpMode—the center knob is high-frequency level control
	and the outer ring knob is the low-frequency level control.
•	Bridge Mode—the center knob is the master volume and the
	outer ring knob is disabled.

Z.POWER SWITCH—Switches the unit ON-OFF as indicated by the LED. To reduce the risk of hearing loss and equipment damage, please turn both level knobs {Y} down to "Min" before switching the Power ON!