Suhr SL-68 User manual

SL-68
USER MANUAL

SL-68 Hand wired
The Suhr® SL-68 is a hand wired, all-tube 100-watt head that delivers a broad range of classic and modern tonalities associated with British amplifiers of the late
60’s; from smooth and punchy clean to crunch all the way to full-bore hi-gain overdrive rich in harmonics and sustain.

Power
Selector
Switch:
The Power Select Switch offers the following three-positions: OFF,
HI & LOW power modes.
•OFF: Amplifier’s power mains are switched off
•HI: On, normal operation
•LOW: Lowers mains voltage to 90 volts, this feature can be
very effective when dialing in higher gain settings at a more
manageable level.
Note: Dimming of the power indicator light in LOW mode is
normal.
Stand-By:
The Standby switch is used in conjunction with the power select
switch. When powering up, use the power select switch first to turn
on the amplifier, this will allow the tubes time to warm up prior to
taking the amp out of Standby to play.
To help improve the longevity of your tubes we recommended
placing the amplifier in Standby prior to turning it off.
Presence:
The Presence control adjusts the amount of high frequencies
added to your sound, turning it clockwise will add more cut and
sparkle to your tone.
Bass:
The Bass control adjusts the low end, turning it clockwise increases
the amount of low frequencies in your tone.
Middle:
The Middle control adjusts the midrange, turning it clockwise
increases the mids, making it fatter. Turning it counterclockwise will
reduce the mids and produce a scooped type of sound.
Treble:
The Treble control adjusts the top end, turning it clockwise increases
the amount of brightness or treble frequencies in your tone.
The Volume I control adjusts the output level of Channel I, turning it
clockwise will increase in volume.
Volume 1:
The Volume II control adjusts the output level of Channel II, turning it
clockwise will increase in volume.
Volume 2:

Speaker Outputs:
Two loudspeaker outputs wired in parallel with 3-way impedance
selector switch for 4Ω, 8Ω& 16Ω.
IMPORTANT: To avoid serious damage to your amplifier, we
recommend never operating it without a speaker or suitable load.
Bridging or Jumping the Channels:
The most common way to perform this is to plug your guitar into the
top (high sensitivity) input of Channel I and then run a short
instrument patch cable from Channel I’s bottom (low sensitivity)
input to the top (high sensitivity) input of Channel II.

SAMPLE SETTINGS
Max Clean Headroom: Power: 10, Drive: 10, Treble: 5, Middle: 5, Bass: 5, Gain: 2-3
On The Edge: Power: 7, Drive: 8, Bass: 4, Middle: 7, Treble: 7, Gain: 4-5
Crunch: Power: 6, Drive: 6, Bass: 4, Middle: 5, Treble: 5, Gain: 6-7
Saturated Lead: Power: 10, Drive: 4, Bass: 3, Middle: 6, Treble: 6, Gain: 8-10

SPECIFICATIONS:
Output: 100 Watts RMS"
Tubes: 4-EL34 & 3-12AX7"
Fuse:#3 Amp Slo-Blo"
Speaker: EVM-12L"
Front Panel: OFF/HI/LOW power select switch, Presence, Bass, Middle, Treble, Volume I, Volume II controls and 4-Inputs!
Rear Panel: Master Volume, 2- Speaker outputs, Impedance selector (4Ω, 8Ω, & 16Ω), HT Fuse, Mains AC Inlet and Mains Fuse!
Dimensions: tbd"
Weight: tbd"
Accessories: tbd
WARRANTY FOR SUHR AMPLIFIERS AND ELECTRONIC PRODUCTS:
For warranty information on the Suhr SL68 as well as all other
Suhr products, please visit, https://www.suhr.com/warranty/
WWW.SUHR.COM