Guitarists and bassists usually travel with their instruments and pedalboards and rent the amplification. That makes the amp line on a rider look simple, but "one guitar amp" leaves a lot of room for the wrong thing to arrive. This guide covers the specs that matter for guitar and bass amp rentals, so the rig on stage is one the players can work with.
Start with the players
For each guitarist and bassist, ask:
- Which amp do they use, and how important is that exact model?
- Head and cabinet, or a combo?
- What are they bringing: instruments, pedalboard, their own amp head?
- Do they need a backup amp for this show?
- Any special requirements, like a specific speaker configuration or two amps for a stereo rig?
Some players are deeply attached to one amp. Others just need a reliable, clean amp of the right type and power and get their sound from pedals. The rider should make the difference clear.
Combo vs. head and cabinet
- Combo amps have the amplifier and speakers in one box. They're easier to move and set up, and common for guitar.
- Heads with cabinets separate the amplifier from the speakers. They're common for bass and for louder guitar rigs.
Specify which one, and for heads, specify the cabinet:
1 × Fender Twin Reverb (guitar combo)
1 × Ampeg SVT head + Ampeg 8×10 cabinet (bass)
The specs that change what arrives
- Model and make. If it matters, name it fully.
- Tube or solid state. Tube amps sound and respond differently and need a little care. Some players won't use anything else.
- Speaker configuration. A 4×12 cabinet and a 2×12 cabinet differ in size, sound, and volume. For bass, 8×10, 4×10, and 1×15 cabinets are common and not interchangeable for many players.
- Power. Higher wattage isn't always better. A very powerful amp in a small room can be hard to control.
- Channels and footswitch. If the player switches channels with the amp's footswitch, list it.
Backups
For critical shows, such as TV, headline sets, or showcases, ask whether a backup amp is worth renting. A spare head is often enough for bass. Discuss it with the band; it's cheaper than a dead amp in the middle of a set.
Instruments
Many rental companies also rent guitars and basses. If you need instruments:
- Name the model, and whether it's right- or left-handed
- Mention the tuning the player uses, and any string gauge preference
- Ask for stands for every instrument
- Allow time for the player to set up and tune
Players who fly in sometimes carry one instrument and rent a backup. Our guide on renting locally vs. flying your own gear covers that decision.
DI boxes, cables, and power
- DI boxes. Bass rigs often send a direct signal to the sound system as well as through the amp. Ask the venue's audio team what they supply.
- Cables. Players usually bring their own instrument cables, but spares are cheap insurance.
- Power. Pedalboards and amps need outlets at each player's position. Note this on the stage plot.
Pedalboards deserve their own line in the plan. Players usually bring them, but they need floor space in front of the amp, a power supply that works with local outlets, and enough room to step without tripping on cables. If a player is flying in with a board, ask whether their power supply needs a particular outlet or adapter.
Substitutions for amps
When the exact amp isn't available, the alternative needs to suit the player's style. A clean-platform player may happily accept a different clean amp; a player whose sound depends on one amp's character may not. List acceptable alternatives in the rider and ask vendors to name the model in their quote. See handling substitutions without surprises.
Volume and the room
Amp choice should consider the room:
- Small venues and rooms with low stage volume limits often call for smaller amps or lower-powered settings
- Large stages may need more power or bigger cabinets
- TV and broadcast productions may ask for amps to be isolated or kept quiet
Ask the venue or the production's audio team about stage volume before finalizing the request.
Checking amps on show day
When the amps arrive:
- Confirm the models and cabinets match the confirmed quote
- Power each amp on and play through it, checking every channel and the footswitch
- Listen for crackles, hum, or dead speakers
- Check that tube amps warm up and behave normally
Allow the players time to set their tone before soundcheck. Note any faults with photos and contact the vendor right away.
Common amp problems on show day
Most amp problems at soundcheck fall into a handful of patterns, and most have quick fixes:
- No sound. Check the standby switch on tube amps, the speaker cable between head and cabinet, and the input the player is using.
- Hum or buzz. Often a grounding or cable issue, or a pedal power supply. Try a different outlet, cable, or pedal supply before blaming the amp.
- Crackling. Can come from a dirty input, a failing cable, or a tube problem. Swap the cable first, then call the vendor if it continues.
- Wrong impedance or a mismatched cabinet. Heads and cabinets need to be matched correctly. If you're unsure, ask the vendor or a backline tech before powering up.
- Too loud for the room. Agree a stage volume with the audio team early rather than fighting it during the set.
If a problem can't be fixed quickly, ask the vendor about a replacement and fall back on the backup amp if you rented one.
Questions to ask the vendor
- Is the quoted amp the exact model, or a substitute?
- Is the cabinet included with the head, and which speaker configuration is it?
- Is the footswitch included?
- When was the amp last serviced?
- Can you supply a spare head or combo, and at what notice?
- Do you rent instruments, and in which tunings and handedness?
Asking these in advance means fewer surprises when the truck opens.
A sample amp request
Guitar 1
1 × Fender Twin Reverb (combo), footswitch
Acceptable: Fender Deluxe Reverb, Vox AC30
Guitar 2
1 × Marshall JCM800 head + 4×12 cabinet
Bass
1 × Ampeg SVT head + 8×10 cabinet
1 × spare bass head (any professional tube head)
Players bring instruments, pedalboards, and cables
Guitar and bass amp rental in Los Angeles
Several Los Angeles backline companies carry guitar and bass amplification, along with instruments. See guitar and bass amp rental in Los Angeles, or browse the full Los Angeles backline directory. For drums and the rest of the band's backline, see what to specify for drum kits.
Frequently asked questions
What should I specify when renting a guitar amp?
The model and make if the player cares, combo or head and cabinet, the speaker configuration, whether it's tube or solid state, and any footswitch or channel requirements.
Do I need a backup amp?
For important shows, it's worth considering. A spare head or combo is much cheaper than losing a song or a set to a failed amp.
Do bass rigs need a DI box?
Often, because the sound system usually takes a direct signal from the bass. Check with the venue's audio team about what they provide.