LHZ-04 vs LHZ-05: Which Bass Preamp Is Right for You?
Which LHZ Is Right for You?
This is not an easy answer as we all have different reason for wanting EQ control on our bass! It honestly depends less on specs and more on how you play and and the variety of material you perform.
Both preamps share the same core design and the same dynamic response. The bass and treble frequency ranges are identical, so if you have the midrange control set at the center detent (flat EQ point) the LHZ-05 sounds just like the LHZ-04.
The LHZ-05 add a midrange control. There are two DIP switches on the board that set the center frequency and width of the midrange control. While it may be natural to think "more controls are better" we often advise users to think about HOW they use EQ to make that decision.
LHZ-04: Two Bands. Find It Once. Play.
The LHZ-04 gives you bass and treble. For most players, simplicity that delivers wide tonal control is all that's needed.
If you're the kind of player who dials in a tone and leaves it alone, the LHZ-04 is probably your preamp. It's also a direct match to the original vintage Haz preamp layout, so if you're chasing that specific tone and feel, start here.
Don't fall into the trap of thinking that two-bands are not enough! When you cut bass and treble, you end up with a very midrange-forward tone that sits very nicely in vintage motown or funk genres. Boosting bass and treble brings out that classic Spector tone with punchy and deep bass with high-harmonic overtones. There's a lot of variety with a two-band EQ, but we do find that the LHZ-04 is often used by players who just tune the EQ to a particular setting for the bass and never adjust it again.
Best for:
- Players who "set and forget" their EQ
- Anyone replacing an original Hazlabs, TonePump, or Legacy preamp
- Players who want fewer decisions on stage, not more
LHZ-05: Three Bands. Adapt on the Fly.
The LHZ-05 adds a midrange control. It has the same core tone, same dynamic behavior, but with more EQ shaping when the gig or the session calls for something different.
Many of our clients are studio musician who need to move between styles fast. One customer put it well: with three bands, he can deliver any tone the project or the engineer asked for without ever reaching for outboard EQ. We find the LHZ-05 is popular with players how understand tactical EQ and often change the EQ based on the session or project.
Best for:
- Working musicians playing multiple genres or projects
- Studio players who need to reset tone quickly between sessions
- Players who've outgrown a simpler EQ and want more shaping range
Still not sure? (Sometimes less is more)
Here's a tip one of our customers gave us after switching from a 3-band EQ system down to the LHZ-04:
"I feel like I have more control with FEWER knobs. No concentric knobs. I'm not accidentally boosting all three EQ, which is just a volume race. I just dial in the top and bottom to get everything from a mid-forward to scooped tone, and just play without worry!"
If that sounds like you, start with the LHZ-04. If your work requires jumping between tones on the fly or precise EQ tailoring, the LHZ-05 is built for that.
Either way, you're not locked in.
- 60-day return policy. If you pick one and decide you want to exchange it for the other, no problem! Send it back for a full refund or exchange it for just the difference in list price.
- 1-year warranty, both preamps. Break it, we'll replace it. Simple as that.
- Email us your setup and tell us a bit about your playing style and needs, and we'll be happy to help you decide which one fits your needs.