Suhr PT-15 I.R. User Manual

User Guide

Table of Contents

Overview........................................................................................................ 3

IMPORTANT SAFETY INSTRUCTIONS....................................................... 4

Front Panel Overview.....................................................................................5

Rear Panel Overview......................................................................................6

Channel 1 (Clean)......................................................................................... 7

Channel 2 & 3 (High-Gain)............................................................................ 8

Presence & Master Volume........................................................................... 9

Speaker Outputs.......................................................................................... 10

Speaker Output Use Cases......................................................................... 11

Line Output.................................................................................................. 12

FX Loop & Footswitch.................................................................................. 13

Impulse Response Section & Channel Select Button.................................. 14

Managing Impulse Responses with a Computer.......................................... 15

Headphone Out & Aux in Section................................................................ 16

How to Silently Practice with Headphones.................................................. 17

How to Connect to a DAW (Digital Audio Workstation)................................ 18

Live Set-Up With Stage Volume................................................................... 19

Tubes, Fuses & Power Requirements......................................................... 20

Impulse Responses Included With PT-15 I.R.............................................. 21

Technical Specications............................................................................... 22

Warranty....................................................................................................... 22

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Thank you for purchasing the Suhr PT-15 I.R.™

Please take the time to read this User Guide to get the most out of the
PT-15 I.R. The more you familiarize yourself with the features of this unit, the

more you will enjoy its benets and maximize its potential.

Overview

The PT-15 is the latest innovation to come from Suhr. Three of the foremost
authorities on tone, John Suhr, his son Kevin Suhr and the legendary guitar
player and recording artist Pete Thorn have collaborated once again to
design a new, groundbreaking version of his revolutionary PT-100.
The PT-15 is a brand new evolution of the PT signature amp in a smaller,
lighter and lower wattage package. The 3 channels of tone arrived
after decades of research and development Pete and John conducted over
the years, yet with the expanded versatility of an on-board Reactive Load
I.R. AND impulse response loader, bundled with IRs from Celestion along
with seven proprietary IR blends made by Pete Thorn himself.

Now, the PT amplier has evolved once again to combine the best of the

analog and digital worlds, leveraging both to their fullest extent to create this

bar-raising amplier. Classic tube circuitry generating dynamics, overdrive,

saturation and harmonics while digital technology and using impulse re­sponses to capture the highly complex frequency response which results in
the nuances of the sonic character of a speaker and its relationship to a mic.
This simply can not be replicated with an analog circuit. With the awesome

capability of a programmable IR for each channel that will automatically
switch to your selected IR when you switch your channels, you can use the
power of impulse responses to vastly alter the tone of your signal.

This makes the PT-15 I.R. the MOST versatile amplier produced today,

analog and digital with absolutely no compromises.

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IMPORTANT SAFETY INSTRUCTIONS

1. Read these instructions

2. Keep these instructions

3. Heed all warnings

4. Follow all instructions

5. Clean only with dry cloth

6. Do not block any ventilation openings. Install in accordance with the

manufacturer’s instructions.

7. Do not install near any heat sources such as radiators, heat registers,

stoves, or other apparatus (including ampliers) that produce heat.

8. Protect the power cord from being walked on or pinched particularly at
plugs and the point where they exit from the apparatus.

9. Only use attachments/accessories specied by the manufacturer.

10. Unplug this apparatus during lightning storms or when unused for long
periods of time.

11. Refer all servicing to qualied service personnel. Servicing is required

when the apparatus has been damaged in any way, such as
power-supply cord or plug is damaged, liquid has been spilled or
objects have fallen into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate normally, or has been
dropped.

12. CAUTION: To disconnect the unit completely from the MAINS, unplug
the unit. Turning the power switch off does not disconnect the unit
completely from the MAINS.

13. The unit shall not be exposed to dripping or splashing and that no

objects lled with liquids, such as vases, shall be placed on the unit.

14. WARNING: This is a Class I apparatus. It should be connected to a
MAINS socket outlet with a protective earthing connection.

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Headphone Out

1/8’' Stereo Headphone output
for easy monitoring or practice.

Aux In

1/8’' Stereo Auxiliary Input for
connecting smart-phone or other
audio device.

I.R. Level (H.P. Level)

I.R. Channel link

To link any I.R. to a specic channel for instant

recall, select channel and desired I.R., then hold
the 'Bank Select Button' and 'Cab Select Button'
for one second. To reset all channels, hold Bank,
Cab and Channel select button for 3 seconds.

Bank & Cab Select buttons & LED

These buttons allow you to switch between
banks 1-4. Each bank has 4 cabs for a total
of 16 I.R.s.

Stand By (On/Off)

Adjusts the level of I.R. affected
signal coming through the
headphone out.

Input

Use this to connect your guitar.

Channel 1 (Green)

Clean channel with Gain, Level,
Bass, Treble controls and Bright
Switch.

Channel 2 (Blue) & 3 (Red)

High Gain Channels
Seperate Gain, Level and Bright
Switch per channel and shared

Power (On/Off)

Channel Select button

Press to cycle between the
amps three channels.

Master Volume knob

Adjusts overall volume.

Master Presence knob

Adjusts the amount of high frequencies.
Turning it clockwise will add more high
end and sparkle.

Bass, Middle and Treble controls.

Speaker Output (Black ring)

Impedance Selector

Speaker Output (RED ring)
(Reactive Load Disabled)

When using this jack you MUST
have a load (Cabinet) connected,
This jack delivers full power and
volume to your cabinet.

Mains Input

Connect the supplied AC cable
to this inlet to supply power.

(Reactive Load Enabled in Parallel)

When using this jack the reactive
load is enabled in parallel with your
cabinet, reducing overall volume by

-3dB SPL. (equivalent to half power)
See page 10 for more details

Set this switch to match the impedance of the
cabinet(s) being used. When no speaker
cabniet is connected, set impedance selector

to 8Ω to match the internal reactive load.

Line Output

Use this as a direct line level out
from your amp for easy recording
and live applications.

H.T. Fuse

F.5 Amp/240V (Fast-Blo)

Mains Fuse

T1.5A/250V (Slo-Blo) - 100/120VAC
T.75A/250V (Slo-Blo) - 230/240VAC

Fx Loop Send

Fx Loop Return

USB In

Connect to a computer to
manage the installed impulse

response les.

I.R. Bypass

Press to bypass the I.R. lter i.e.

no impulse response affecting the
tone.

Foot Switch

Connect this output to the input of
your effects device or chain.

Connect this input to the output of
your device or chain.

Connect the supplied foot switch
here via stereo cable (TRS).

Channel 1 (Clean)

The PT15 I.R. has a clean channel in a league of its own.
American voiced, bold, clear, punchy responsive tone with tons of
headroom.

Things to know:

1. GAIN - Adjusts the overall gain of channel 1.

2. LEVEL - Adjusts the overall output of channel 1.

3. BASS - Adjusts the amount of bass. Turning it clockwise increases the

amount of bottom-end, giving you a fuller, richer tone, without losing

denition. Turning it counter clockwise will reduce the bottom-end for a tighter

tone, which is useful when performing at louder volumes.

4. TREBLE - Adjusts the treble. Turning it clockwise increases the amount of

top-end, giving your tone clarity and brightness. Turning it counter
clockwise will produce a warmer sound, ideal for dialing in smoother Jazz-like
tones.

5. BRIGHT SWITCH - Introduces added brightness and sparkle that brings out
a chimy organic top end.

☺

HELPFUL TIP: Although channel 1 has no midrange control, the bass

and treble settings will interactively affect this channel’s midrange

response. Turning up the bass and treble will effectively scoop the mids.
Turning down the bass and treble will push the midrange front and center.

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